TPS65186RGZR

Product Folder Sample & Buy Support & Community Tools & Software Technical Documents TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 TPS65186 PMIC for E Ink® Vizplex™ Enabled Electronic Paper Display 1 Features 2 Applications • • 1 • • • • • • • • • • Single Chip Power-Management Solution for E Ink® Vizplex™ Electronic Paper Displays Generates Positive and Negative Gates, Source Driver Voltages, and Back-Plane Bias From a Single, Low-Voltage Input Supply Supports 9.7 Inch and Larger Panel Size 3-V to 6-V Input Voltage Range Boost Converter for Positive Rail Base Inverting Buck-Boost Converter for Negative Rail Base Two Adjustable LDOs for Source Driver Supply – LDO1: 15 V, 120 mA (VPOS) – LDO2: –15 V, 120 mA (VNEG) Accurate Output Voltage Tracking – VPOS – VNEG = ±50 mV Two Charge Pumps for Gate Driver Supply – CP1: 22 V, 10 mA (VDDH) – CP2: –20 V, 12 mA, (VEE) Adjustable VCOM Driver for Accurate PanelBackplane Biasing – 0 V to –5.11 V – ± 1.5% accuracy (±10 mV) – 9-Bit Control (10-mV Nominal Step Size) Integrated 10-Ω, 3.3-V Power Switch for Disabling System Power Rail to E-Ink Panel • • • • • Power Supply for Active Matrix E Ink Vizplex Panels EPD Power Supplies E-Book Readers EPSON® S1D13522 (ISIS) Timing Controller EPSON® S1D13521 (Broadsheet) Timing Controller Application Processors With Integrated or Software Timing Controller (OMAP™) 3 Description The TPS65186 device is a single-chip power supply designed to for E Ink Vizplex displays used in portable e-reader applications, and the device supports panel sizes up to 9.7 inches and greater. Two high-efficiency DC-DC boost converters generate ±16-V rails that are boosted to 22 V and –20 V by two change pumps to provide the gate driver supply for the Vizplex panel. Two tracking LDOs create the ±15-V source driver supplies that support up to 120-mA of output current. All rails are adjustable through the I2C interface to accommodate specific panel requirements. Device Information(1) PART NUMBER TPS65186 PACKAGE VQFN (48) BODY SIZE (NOM) 7.00 mm × 7.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application Schematic From Input Supply (3.0 V-6.0 V) VIN TS Temp Sensor VN _SW VN Positive Charge Pump LDO1 VDDH_D VDDH_ DRV VDDH_FB VPOS DCDC2 VCOM From Input Supply (3.0 V-6.0 V) VCOM VB_SW VB VCOM_ PANEL DCDC1 LDO2 I/O Control VCOM Negative Charge Pump VNEG VEE_D VEE_ DRV VEE_FB 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com Table of Contents 1 2 3 4 5 6 7 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Description (continued)......................................... Pin Configuration and Functions ......................... Specifications......................................................... 7.1 7.2 7.3 7.4 7.5 7.6 7.7 8 1 1 1 2 3 3 5 Absolute Maximum Ratings ...................................... 5 ESD Ratings.............................................................. 5 Recommended Operating Conditions....................... 5 Thermal Information .................................................. 6 Electrical Characteristics........................................... 6 Timing Requirements: Data Transmission.............. 10 Typical Characteristics ............................................ 12 Detailed Description ............................................ 15 8.1 Overview ................................................................. 15 8.2 Functional Block Diagram ....................................... 16 8.3 Feature Description................................................. 17 8.4 Device Functional Modes........................................ 24 8.5 Programming........................................................... 26 8.6 Register Maps ......................................................... 27 9 Application and Implementation ........................ 44 9.1 Application Information............................................ 44 9.2 Typical Application ................................................. 44 10 Power Supply Recommendations ..................... 46 11 Layout................................................................... 46 11.1 Layout Guidelines ................................................. 46 11.2 Layout Example .................................................... 46 12 Device and Documentation Support ................. 47 12.1 12.2 12.3 12.4 12.5 Device Support...................................................... Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 47 47 47 47 47 13 Mechanical, Packaging, and Orderable Information ........................................................... 47 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Original (July 2011) to Revision A Page • Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .................................................................................................. 1 • Changed ROUT from “TBD” to “5 Ω” ........................................................................................................................................ 8 2 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 5 Description (continued) Accurate back-plane biasing is provided by a linear amplifier that can be adjusted from 0 V to –5.11 V with 9-bit control through the serial interface; it can also source or sink current depending on panel condition. The TPS65186 supports automatic panel kickback voltage measurement, which eliminates the need for manual VCOM calibration in the production line. The measurement result can be stored in nonvolatile memory to become the new VCOM power-up default value. TPS65186 is available in a 48-pin 7-mm × 7-mm2 VQFN with 0.5-mm pitch. 6 Pin Configuration and Functions 25 – VN_SW 27 – VIN_P 26 – N/C 28 – VN 29 – VEE_IN 30 – VEE_DRV 31 – VEE_D 32 – VEE_FB 33 – PGND2 34 – VDDH_FB 35 – VDDH_D 36 – VDDH_DRV RGZ Package 48-Pin VQFN Top View VDDH_IN – 37 24 – PWR_GOOD 23 – PBKG N/C – 38 N/C – 39 22 – PWRUP VB_SW – 40 21 – N/C PGND1 – 41 20 – N/C VB – 42 VPOS_IN – 43 19 – N/C 18 – SDA VPOS – 44 17 – SCL VIN3P3 – 45 16 – VCOM_PWR V3P3 – 46 TS – 47 15 – N/C 14 – VCOM VCOM_CTRL – 12 N/C – 11 N/C – 9 VIN – 10 AGND1 – 8 INT_LDO – 7 DGND – 6 WAKEUP – 5 VNEG_IN – 4 VNEG – 3 nINT – 2 13 – N/C VREF – 1 AGND2 – 48 Pin Functions PIN NAME NO. I/O DESCRIPTION AGND1 8 — Analog ground for general analog circuitry AGND2 48 — Reference point to external thermistor and linearization resistor DGND 6 — Digital ground. Connect to ground plane. INT_LDO 7 O Filter pin for 2.7-V internal supply nINT 2 O Open drain interrupt pin (active low) N/C 9, 11, 13, 15, 19, 20, 21, 26, 38, 39 — Not internally connected Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 3 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com Pin Functions (continued) PIN I/O DESCRIPTION NAME NO. PBKG 23 — Die substrate. Connect to VN (–16 V) with short, wide trace. Wide copper trace will improve heat dissipation. PGND1 41 — Power ground for DCDC1 PGND2 33 — Power ground for CP1 (VDDH) and CP2 (VEE) charge pumps PWR_GOOD 24 O Open-drain power good output pin. Pin is pulled low when one or more rails are disabled or not in regulation. DCDC1, DCDC2, and VCOM have no effect on this pin. (1) PWRUP 22 I Power-up pin. Pull this pin high to power up all output rails. (1) SCL 17 I Serial interface (I2C) clock input SDA 18 I/O TS 47 I Thermistor input pin. Connect a 10-kΩ NTC thermistor and a 43-kΩ linearization resistor between this pin and AGND. V3P3 46 O Output pin of 3.3-V power switch VB 42 I Feedback pin for boost converter (DCDC1) and supply for VPOS LDO and VDDH charge pump VB_SW 40 O Boost converter switch out (DCDC1) VCOM 14 I Filter pin for panel common-voltage driver VCOM_CTRL 12 I VCOM enable. Pull this pin high to enable the VCOM amplifier. When pin is pulled low and VN is enabled, VCOM discharge is enabled. (2) VCOM_PWR 16 I Internal supply input pin to VCOM buffer. Connect to the output of DCDC2. VDDH_D 35 O Base voltage output pin for positive charge pump (CP1) VDDH_DRV 36 O Driver output pin for positive charge pump (CP1) VDDH_FB 34 I Feedback pin for positive charge pump (CP1) VDDH_IN 37 I Input supply pin for positive charge pump (CP1) VEE_D 31 I Base voltage output pin for negative charge pump (CP2) VEE_DRV 30 O Driver output pin for negative charge pump (CP2) VEE_FB 32 I Feedback pin for negative charge pump (CP2) VEE_IN 29 I Input supply pin for negative charge pump (CP2) (VEE) VIN 10 I Input power supply to general circuitry VIN3P3 45 I Input pin to 3.3-V power switch VIN_P 27 I Input power supply to inverting buck-boost converter (DCDC2) VN 28 I Feedback pin for inverting buck-boost converter (DCDC2) and supply for VNEG LDO and VEE charge pump VNEG 3 O Negative supply output pin for panel source drivers VNEG_IN 4 I Input pin for LDO2 (VNEG) VN_SW 25 O Inverting buck-boost converter switch out (DCDC2) VREF 1 O Filter pin for 2.25-V internal reference to ADC VPOS 44 O Positive supply output pin for panel source drivers VPOS_IN 43 I Input pin for LDO1 (VPOS) WAKEUP 5 I Wake-up pin (active high). Pull this pin high to wake up from sleep mode. IC accepts I2C commands after WAKEUP pin is pulled high but power rails remain disabled until PWRUP pin is pulled high. (3) PowerPad — — PowerPad, internally connected to PBKG. Connect to VN with short, wide trace. Wide copper trace will improve heat dissipation. PowerPad must not be connected to ground. (1) (2) (3) 4 Serial interface (I2C) data input/output There will be 0-ns of deglitch for PWRx. There will be 62.52-µs of deglitch for VCOM_CTRL. There will be 93.75-µs of deglitch for WAKEUP. Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 7 Specifications 7.1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1) (2) MIN MAX UNIT Input voltage at VIN (2), VIN_P, VIN3P3 –0.3 7 V Ground pins to system ground –0.3 0.3 V Voltage at SDA, SCL, WAKEUP, PWRUP, VCOM_CTRL, VDDH_FB, VEE_FB, PWR_GOOD, nINT –0.3 3.6 V Voltage on VB, VB_SW, VPOS_IN, VDDH_IN –0.3 20 V Voltage on VN, VEE_IN, VCOM_PWR, VNEG_IN –20 0.3 V Voltage from VIN_P to VN_SW –0.3 30 V Peak output current Internally limited Continuous total power dissipation mA 2 W TJ Operating junction temperature –10 125 °C TA Operating ambient temperature (3) –10 85 °C –65 150 °C Tstg Storage temperature (1) (2) (3) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute maximum rated conditions for extended periods may affect device reliability. All voltage values are with respect to network ground terminal. TI recommends that copper plane in proper size on board be in contact with die thermal pad to dissipate heat efficiently. Thermal pad is electrically connected to PBKG, which is supposed to be tied to the output of buck-boost converter. Thus wide copper trace in the buckboost output will help heat dissipated efficiently. 7.2 ESD Ratings VALUE Human body model (HBM), per ANSI/ESDA/JEDEC JS-001 V(ESD) (1) (2) Electrostatic discharge (1) UNIT ±2000 Charged device model (CDM), per JEDEC specification JESD22C101 (2) V ±500 JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. 7.3 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted) MIN NOM MAX UNIT Input voltage at VIN, VIN_P, VIN3P3 3 3.7 6 V Voltage at SDA, SCL, WAKEUP, PWRUP, VCOM_CTRL, VDDH_FB, VEE_FB, PWR_GOOD, nINT 0 3.6 V TA Operating ambient temperature –10 85 °C TJ Operating junction temperature –10 125 °C Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 5 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com 7.4 Thermal Information TPS65186 THERMAL METRIC (1) RGZ [VQFN] UNIT 48 PINS RθJA Junction-to-ambient thermal resistance 30 °C/W RθJC(top) RθJB Junction-to-case (top) thermal resistance 15.6 °C/W Junction-to-board thermal resistance 6.6 °C/W ψJT Junction-to-top characterization parameter 0.2 °C/W ψJB Junction-to-board characterization parameter 6.6 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance 0.9 °C/W (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. 7.5 Electrical Characteristics VIN = 3.7 V, TA = –10°C to 85ºC, Typical values are at TA = 25ºC (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX 3 3.7 6 UNIT INPUT VOLTAGE VIN Input voltage range VUVLO Undervoltage lockout threshold VIN falling 2.9 V V VHYS Undervoltage lockout hysteresis VIN rising 400 mV mA INPUT CURRENT IQ Operating quiescent current into VIN Device switching, no load 5.5 ISTD Operating quiescent current into VIN Device in standby mode 130 ISLEEP Shutdown current Device in sleep mode 3.5 µA 10 µA INTERNAL SUPPLIES VINT_LDO Internal supply CINT_LDO Nominal output capacitor VREF Internal supply CREF Nominal output capacitor Capacitor tolerance ±10% 1 Capacitor tolerance ±10% 3.3 2.7 V 4.7 µF 2.25 V 4.7 µF DCDC1 (POSITIVE BOOST REGULATOR) VIN Input voltage range PG Fraction of nominal output voltage Power good time-out Not tested in production DC set tolerance IOUT Output current RDS(ON) MOSFET ON-resistance LDCDC1 Inductor CDCDC1 Nominal output capacitor ESR Output capacitor ESR (1) 6 ms V 4.5% 350 –30% A 30% 1 2.2 1 mA mΩ 1.5 (1) Capacitor tolerance ±10% V 16 250 VIN = 3.7 V Switch current accuracy Switching frequency 6 50 –4.5% Switch current limit fSW 3.7 90% Output voltage range VOUT ILIMIT 3 Power good threshold MHz µH 2 × 4.7 µF 20 mΩ Contact TI for 1-A, 2-A, or 2.5-A option. Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 Electrical Characteristics (continued) VIN = 3.7 V, TA = –10°C to 85ºC, Typical values are at TA = 25ºC (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX 3.7 6 UNIT DCDC2 (INVERTING BUCK-BOOST REGULATOR) VIN PG VOUT Input voltage range Fraction of nominal output voltage Power good time-out Not tested in production 50 Output current RDS(ON) MOSFET ON-resistance –4.5% VIN = 3.7 V 350 Inductor Nominal output capacitor ESR Capacitor ESR –30% A 30% 4.7 Capacitor tolerance ±10% 1 mA mΩ 1.5 (1) Switch current accuracy CDCDC1 V 4.5% 250 Switch current limit LDCDC1 ms –16 DC set tolerance V 90% Output voltage range IOUT ILIMIT 3 Power good threshold µH 3x4.7 µF 20 mΩ LDO1 (VPOS) VPOS_IN Input voltage range 15.2 16 16.8 Power good threshold Fraction of nominal output voltage Power good time-out Not tested in production VSET Output voltage set value VIN = 16 V, VSET[2:0] = 0x3h to 0x6h VINTERVAL Output voltage set resolution VIN = 16 V VOUTTOL Output tolerance VSET = 15 V, ILOAD = 20 mA VDROPOUT Dropout voltage ILOAD = 120 mA 250 VLOADREG Load regulation – DC ILOAD = 10% to 90% 1% ILOAD Load current range ILIMIT Output current limit CLDO1 Nominal output capacitor PG 50 14.25 15 ms 15 250 –1% 1% 120 1 V mV 120 Capacitor tolerance ±10% V 90% mV mA mA 4.7 µF LDO2 (VNEG) VNEG_IN Input voltage range 16.8 16 –15.2 Power good threshold Fraction of nominal output voltage Power good time-out Not tested in production VSET Output voltage set value VIN = –16 V VSET[2:0] = 0x3h to 0x6h VINTERVAL Output voltage set resolution VIN = –16 V VOUTTOL Output tolerance VSET = –15 V, ILOAD = –20 mA VDROPOUT Dropout voltage ILOAD = 120 mA 250 VLOADREG Load regulation – DC ILOAD = 10% to 90% of ILOAD,MAX 1% ILOAD Load current range ILIMIT Output current limit CLDO2 Nominal output capacitor PG 50 –15 –15 ms –14.25 250 –1% mV 120 1 Product Folder Links: TPS65186 mV mA mA 4.7 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated V 1% 120 Capacitor tolerance ±10% V 90% µF 7 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com Electrical Characteristics (continued) VIN = 3.7 V, TA = –10°C to 85ºC, Typical values are at TA = 25ºC (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT LD01 (POS) AND LDO2 (VNEG) TRACKING VDIFF Difference between VPOS and VNEG VSET = ±15 V, ILOAD = ±20 mA, 0°C to 60°C –50 50 mV VCOM DRIVER IVCOM Drive current Allowed operating range Accuracy VCOM 15 mA Outside this range VCOM is shut down and VCOMF interrupt is set –5.5 1 VCOM[8:0] = 0x07Dh (–1.25 V), VIN = 3.4 V to 4.2 V, no load –0.8% 0.8% VCOM[8:0] = 0x07Dh (–1.25 V), VIN = 3 V to 6 V, no load –1.5% 1.5% Output voltage range –5.11 Resolution 1LSB Max number of EEPROM writes VCOM calibration ROUT Output impedance VCOM_CTRL = high, Hi-Z = 0 RIN Input impedance, HiZ state HiZ = 1 150 CVCOM Nominal output capacitor Capacitor tolerance ±10% 3.3 0 10 V V mV 100 Ω 5 MΩ 4.7 µF CP1 (VDDH) CHARGE PUMP VDDH_IN PG Input voltage range 15.2 Power good threshold Fraction of nominal output voltage Power good time-out Not tested in production 16.8 50 Feedback voltage VFB 16 ms 0.998 Accuracy ILOAD = 2 mA VDDH_OUT Output voltage range VSET = 22 V, ILOAD = 2 mA ILOAD Load current range fSW Switching frequency CD Driver capacitor CO Output capacitor V 90% –2% 21 V 2% 22 23 10 1 V mA 560 kHz 10 nF 2.2 µF CP2 (VEE) NEGATIVE CHARGE PUMP VEE_IN Input voltage range PG 16.8 Power good threshold Fraction of nominal output voltage Power good time-out Not tested in production ILOAD = 2 mA VEE_OUT Output voltage range VSET = –20 V, ILOAD = 3 mA ILOAD Load current range fSW Switching frequency CD Driver capacitor CO Nominal output capacitor –2% –21 Submit Documentation Feedback 1 V 2% –20 560 Capacitor tolerance ±10% V ms –0.994 Accuracy 8 –15.2 50 Feedback voltage VFB –16 90% –19 V 12 mA kHz 10 nF 2.2 µF Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 Electrical Characteristics (continued) VIN = 3.7 V, TA = –10°C to 85ºC, Typical values are at TA = 25ºC (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIN3P3 TO V3P3 SWITCH RDS(ON) RDIS MOSFET ON-resistance Discharge impedance to ground VIN3P3 = 3.3 V, ID = 10 mA Over full temperature range 10.5 VIN3P3 = 2.7 V, ID = 10 mA Over full temperature range 12.3 V3P3EN = 0 Ω 800 1000 Ω 1200 THERMISTOR MONITOR (2) ATMS Temperature to voltage ratio Not tested in production OffsetTMS Offset Temperature = 0°C 1.575 V VTMS_HOT Temp hot trip voltage (T = 50°C) TEMP_HOT_SET = 0x8C 0.768 V TEMP_COOL_SET = 0x82 0.845 V VTMS_COOL Temp hot escape voltage (T = 45°C) VTMS_MAX Maximum input level RNTC_PU Internal pullup resistor RLINEAR External linearization resistor ADCRES ADC resolution Not tested in production, 1 bit ADCDEL ADC conversion time Not tested in production TMSTTOL Accuracy Not tested in production –0.0161 V/°C 2.25 V 7.307 kΩ 43 kΩ 16.1 mV 19 –1 µs 1 LSB LOGIC LEVELS AND TIMING CHARTERISTICS (SCL, SDA, nINT, PWR_GOOD, PWRUP) IO = 3 mA, sink current (SDA, nINT, PWR_GOOD) VOL Output low threshold level VIL Input low threshold level VIH Input high threshold level I(bias) Input bias current VIO = 1.8 V Deglitch time, WAKEUP pin Not tested in production 500 Deglitch time, PWRUP pin Not tested in production 400 tdeglitch fSCL V 0.4 V 1 µA 1.2 V SCL clock frequency I2C slave address 0.4 µs 400 kHz 0 × 48h (3) 7-bit address OSCILLATOR fOSC Oscillator frequency Frequency accuracy 9 TA = –40°C to 85°C –10% MHz 10% THERMAL SHUTDOWN TSHTDWN Thermal trip point Thermal hysteresis (2) (3) 150 °C 20 °C 10-kΩ Murata NCP18XH103F03RB thermistor (1%) in parallel with a linearization resistor (43 kΩ, 1%) are used at TS pin for panel temperature measurement. Contact TI for alternate address of 0 × 68h. Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 9 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com 7.6 Timing Requirements: Data Transmission VBAT = 3.6 V ±5%, TA = 25ºC, CL = 100 pF (unless otherwise noted) MIN f(SCL) Serial clock frequency tHD;STA Hold time (repeated) START condition. After this period, the first clock pulse is generated. MAX UNIT 400 kHz 100 tLOW LOW period of the SCL clock tHIGH HIGH period of the SCL clock tSU;STA Setup time for a repeated START condition tHD;DAT NOM Data hold time tSU;DAT Data setup time tr Rise time of both SDA and SCL signals tf Fall time of both SDA and SCL signals tSU;STO Setup time for STOP condition tBUF Bus Free Time Between Stop and Start Condition tSP Pulse width of spikes that must be suppressed by the input filter Cb Capacitive load for each bus line SCL = 100 kHz 4 µs SCL = 400 kHz 600 ns SCL = 100 kHz 4.7 SCL = 400 kHz 1.3 µs SCL = 100 kHz 4 µs SCL = 400 kHz 600 ns SCL = 100 kHz 4.7 µs SCL = 400 kHz 600 SCL = 100 kHz 0 3.45 µs SCL = 400 kHz 0 900 ns SCL = 100 kHz 250 SCL = 400 kHz 100 ns ns SCL = 100 kHz 1000 SCL = 400 kHz 300 SCL = 100 kHz 300 SCL = 400 kHz 300 ns ns SCL = 100 kHz 4 µs SCL = 400 kHz 600 ns SCL = 100 kHz 4.7 SCL = 400 kHz 1.3 SCL = 100 kHz n/a n/a SCL = 400 kHz 0 50 µs SCL = 100 kHz 400 SCL = 400 kHz 400 ns pF SDA tf tLOW tr tSU;DAT tHD;STA tSP tr tBUF SCL tHD;STA S tHD;DAT tHIGH tSU;STA tSU;STO Sr tf P S Figure 1. I2C Data Transmission Timing 10 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 VIN I2C 1.8ms PWRUP SLEEP WAKEUP STANDBY ACTIVE ACTIVE 50ms VN VB DDLY4 UDLY1 UDLY1 VNEG UDLY2 UDLY2 VEE DDLY3 UDLY3 UDLY3 VPOS DDLY2 UDLY4 UDLY4 VDDH DDLY1 PWR _GOOD 300us (max) 300us (max) Minimum delay time between WAKEUP rising edge and IC ready to accept I2C transaction. In this example, the first power-up sequence is started by pulling the PWRUP pin high (rising edge). Power-down is initiated by pulling the WAKEUP pin low (device enters sleep mode). The second power-up sequence is initiated by pulling the WAKEUP pin high while the PWRUP pin is also high (power up from sleep to active). Figure 2. Power-Up and Power-Down Timing Diagram Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 11 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com 7.7 Typical Characteristics Figure 3. Default Power-Up Sequence VIN = 3.7 V Figure 4. Default Power-Down Sequence CIN = 100 µF VIN = 5 V Figure 5. Inrush Current VIN = 3 V RLOAD, VPOS = 330 Ω No Load on VDDH, VEE Figure 6. Inrush Current RLOAD, VNEG = 330 Ω VIN = 3 V Figure 7. Switching Waveforms, VN 12 CIN = 100 µF Submit Documentation Feedback RLOAD, VPOS = 330 Ω No Load on VDDH, VEE RLOAD, VNEG = 330 Ω Figure 8. Switching Waveforms, VB Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 Typical Characteristics (continued) RLOAD, VPOS = 330 Ω No Load on VDDH, VEE VIN = 3.7 V RLOAD, VNEG = 330 Ω RLOAD, VPOS = 330 Ω No Load on VDDH, VEE VIN = 3.7 V Figure 9. Switching Waveforms, VN RLOAD, VPOS = 330 Ω No Load on VDDH, VEE VIN = 5 V RLOAD, VNEG = 330 Ω Figure 10. Switching Waveforms, VB VNEG = 330 Ω RLOAD, VPOS = 330 Ω No Load on VDDH, VEE VIN = 5 V Figure 11. Switching Waveforms, VN RLOAD, VNEG = 330 Ω Figure 12. Switching Waveforms, VB 50 25 IPO S = INE G 40 IPO S s we ep, IN E G= 15m A 30 20 VPOS + VNEG[mV] R[W], (VIN3p3-V3P3)/10mA RLOAD, 15 10 5 IPO S = 15m A , IN EG s w eep 20 10 0 -1 0 -2 0 -3 0 -4 0 0 -5 0 1 1.5 2 2.5 3 3.5 4 0 25 VIN3P3[V] VIN = 3.7 V ILOAD, V3p3 50 75 100 125 1 50 1 75 C u rre n t [m A] = 10 mA VIN = 3.7 V Figure 13. 3p3V Switch Impedance Figure 14. Source Driver Supply Tracking Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 13 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com Typical Characteristics (continued) 5 0.2 4 0 .15 3 0.1 DNL[LSB] INL [mV] 2 1 0 -1 0 .05 0 -0 .05 -2 -0.1 -3 -0 .15 -4 -0.2 -5 0 64 128 192 25 6 320 384 44 8 0 512 64 12 8 1 92 VIN = 3.7 V RLOAD, VCOM 2 56 3 20 384 448 512 V CO M C OD E VC O M C OD E = 1 kΩ VIN = 3.7 V Figure 15. VCOM Integrated Non-Linearity RLOAD, VCOM = 1 kΩ Figure 16. VCOM Differential Non-Linearity 2 Measurementerror [LSB] 1.5 1 0.5 0 -0.5 -1 -1.5 -2 0 640 12 80 192 0 2560 3200 3840 44 80 512 0 F o rce d Kick ba c k Vo lta g e [m V] VIN = 3.7 V VIN = 3.7 V AVG[1:0] = 00 (Single Measurement) Time from ACQ Bit Set to ACQC Interrupt Received Figure 17. Kickback Voltage Measurement Error Figure 18. Kickback Voltage Measurement Timing VIN = 3.7 V AVG[1:0] = 11 (Eight Measurements) Time from ACQ Bit Set to ACQC Interrupt Received Figure 19. Kickback Voltage Measurement Timing 14 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 8 Detailed Description 8.1 Overview The TPS65186 device provides two adjustable LDOs, inverting buck-boost converter, boost converter, thermistor monitoring, and flexible power-up and power-down sequencing. The system can be supplied by a regulated input voltage ranging from 3 V to 6 V. The device is characterized across a –10°C to 85°C temperature range, best suited for personal electronic applications. The I2C interface provides comprehensive features for using the TPS65186. All rails can be enabled or disabled. Power-up and power-down sequences can also be programmed through the I2C interface, as well as thermistor configuration and interrupt configuration. Voltage adjustment can also be controlled by the I2C interface. The adjustable LDOs can supply up to 120 mA of current. The default output voltages for each LDO can be adjusted through the I2C interface. LDO1 (VPOS) and LDO2 (VNEG) track each other in a way that they are of opposite sign but same magnitude. The sum of VLDO1 and VLOD2 is guaranteed to be less than 50 mV. There are two charge pumps: VDDH and VEE 10 mA and 12 mA respectively. These charge pumps boost the DC-DC boost converters ±16-V rails to provide a gate channel supply. The power good functionality is open-drain output, if any of the four power rails (CP1, CP2, LDO1, LDO2) are not in regulation, encounters a fault, or is disabled the pin is pulled low. PWR_GOOD remains low if one of the rails is not enabled by the host and only after all rails are in regulation PWR_GOOD is released to Hi-Z state (pulled up by external resistor). The TPS65186 provides circuitry to bias and measure an external NTC to monitor the display panel temperature in a range from –10°C to 85°C with and accuracy of ±1°C from 0°C to 50°C. Temperature measurement are triggered by the controlling host and the last temperature reading is always stored in the TMST_VALUE register. Interrupts are issued when the temperature exceeds the programmable HOT, or drops below the programmable COLD threshold, or when the temperature has changed by more than a user-defined threshold from the baseline value. This device is offered in a 48-Pin, 0.5-mm Pitch, 7 mm × 7 mm × 0.9 mm (VQFN) RGZ package. Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 15 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com 8.2 Functional Block Diagram 10uF 10uF VIN_P 2.2uH VB_SW From Battery (3.0V-6.0V) From Battery (3.0V-6.0V) 4.7uH 4.7uF PGND1 DCDC1 VN_SW DCDC2 VB VN VEE_IN VDDH_IN 100n 100n VDDH_D VDDH (22V) VDDH_DRV 1M 2.2uF 10nF VDDH_FB VEE_D VDDH CHARGE PUMP VEE CHARGE PUMP PGND2 VEE_FB PGND2 PGND2 VDDH_EN 4.7uF VEE_EN 1M 10nF 2.2uF 52.3k 4.7uF VPOS_IN VPOS VEE (-20V) VEE_DRV 47.5k VPOS (15V) 4.7uF VNEG_IN LDO1 VNEG LDO2 VNEG (-15V) 4.7uF 4.7uF VPOS_EN VNEG_EN 10k NTC PBKG TS AGND2 43k TEMP SENSOR ADC VIN From Input Supply (3.0V-6.0V) PowerPad® TMST_VALUE[7:0] INT_LDO INT_LDO 4.7uF VREF 10uF VREF 4.7uF AGND1 4.7uF VCOM To panel back -plane (0 to -5.11 V) VCOM_CTRL From uC DAC VCOM[8:0] 4.7uF VCOM_PWR VIN3P3 V3P3_EN GATE DRIVER 3.3V supply from system V3P3 To EPD panel 1k VIO 10k From uC From/to uC or DSP From uC From uC 16 VIO 10k SDA SCL PWRUP WAKEUP INT DIGITAL CORE PWR_GOOD 10k VIO 10k VIO To uC To uC DGND Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 8.3 Feature Description 8.3.1 Wake-Up and Power-Up Sequencing The power-up and power-down order and timing is defined by user register settings. The default settings support the E Ink Vizplex panel and typically do not need to be changed. In SLEEP mode the TPS65186 is completely turned off, the I2C registers are reset, and the device does not accept any I2C transaction. Pull the WAKEUP pin high with the PWRUP pin low and the device enters STANDBY mode that enables the I2C interface. Write to the UPSEQ0 register to define the order in which the output rails are enabled at power-up and to the UPSEQ1 registers to define the power-up delays between rails. Finally, set the ACTIVE bit in the ENABLE register to 1 to execute the power-up sequence and bring up all power rails. Alternatively, pull the PWRUP pin high (rising edge). After the ACTIVE bit has been set, the negative boost converter (VN) is powered up first, followed by the positive boost (VB). The positive boost enable is gated by the internal power-good signal of the negative boost. Once VB is in regulation, it issues an internal power-good signal and after delay time UDLY1 has expired, STROBE1 is issued. The rail assigned to STROBE1 will power up next and after its power-good signal has been asserted and delay time UDLY2 has expired, STROBE2 is issued. The sequence continues until STROBE4 has occurred and the last rail has been enabled. To power down the device, set the STANDBY bit of the ENABLE register to 1 or pull the PWRUP pin low (falling edge) and the TPS65186 will power down in the order defined by DWNSEQx registers. The delay times DDLY2, DDLY3, and DDLY4 are weighted by a factor of DFCTR which allows the user to space out the power down of the rails to avoid crossing during discharge. DFCTR is located in register DWNSEQ1. The positive boost (VB) is shut down together with the last rail at STROBE4. However, the negative boost (VN) remains up and running for another 50 ms. Then VN is powered down and the device enters STANDBY or SLEEP mode, depending on the WAKEUP pin. If either the ACTIVE bit is set or the PWRUP pin is pulled high while the device is powering down, the powerdown sequence (STROBE1-4) is completed first, followed by a power-up sequence. VB and VN may or may not be powered down and depending on the relative timing of STROBE4 to the new power-up event. During power-up, if the STANDBY bit is set or the PWRUP pin is pulled low, the power-up sequence is aborted and the power-down sequence starts immediately. 8.3.2 Dependencies Between Rails Charge pumps, LDOs, and VCOM driver are dependent on the positive and inverting buck-boost converters and several dependencies exist that affect the power-up sequencing. These dependencies are the following: • Inverting buck-boost (DCDC2) must be in regulation before positive boost (DCDC1) can be enabled. Internally, DCDC1 enable is gated by DCDC2 power good. • Positive boost (DCDC1) must be in regulation before LDO2 (VNEG) can be enabled. Internally LDO2 enable is gated DCDC1 power good. • Positive boost (DCDC1) must be in regulation before VCOM can be enabled. Internally VCOM enable is gated by DCDC1 power good. • Positive boost (DCDC1) must be in regulation before negative charge pump (CP2) can be enabled. Internally CP2 enable is gated by DCDC1 power good. • Positive boost (DCDC1) must be in regulation before positive charge pump (CP1) can be enabled. Internally CP1 enable is gated by DCDC1 power good. • LDO2 must be in regulation before LDO1 can be enabled. Internally LDO1 enable is gated by LDO2 power good. Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 17 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com Feature Description (continued) VN PG VN powers up VB PG VB powers up STROBE 1 STROBE 2 STROBE 3 STROBE 4 PG4 UDLY1 ACTIVE bit or WAKEUP high STROBE 1 DDLY1 UDLY2 UDLY3 UDLY4 1st rail powers up 2 nd rail powers up 3 nd rail powers up STROBE 2 DDLY2 1st rail powers down STROBE 3 DDLY3 2 nd rail powers down 4 th rail powers up STROBE 4 DDLY4 3 nd rail powers down 4 th rail powers down 50ms VB powers down STANDBY bit or WAKEUP low VN powers down TOP: Power-up sequence is defined by assigning strobes to individual rails. STROBE1 is the first strobe to occur after ACTIVE bit is set and STROBE4 is the last event in the sequence. Strobes are assigned to rails in UPSEQ0 register and delays between STROBES are defined in UPSEQ1 register. BOTTOM: Power-down sequence is independent of power-up sequence. Strobes and delay times for power down sequence are set in DWNSEQ0 and DWNSEQ1 register. Figure 20. Power-Up and Power-Down Sequence 8.3.3 Soft Start TPS65186 supports soft start for all rails, that is, inrush current is limited during startup of DCDC1, DCDC2, LDO1, LDO2, CP1, and CP2. If DCDC1 or DCDC2 are unable to reach power-good status within 50 ms, the corresponding UV flag is set in the interrupt registers, the interrupt pin is pulled low, and the device enters STANDBY mode. LDO1, LDO2, positive and negative charge pumps also have a 50-ms power-good time-out limit. If either rail is unable to power up within 50 ms after it has been enabled, the corresponding UV flag is set and the interrupt pin is pulled low. However, the device will remain in ACTIVE mode in this case. 8.3.4 VPOS/VNEG Supply Tracking LDO1 (VPOS) and LDO2 (VNEG) track each other in a way that they are of opposite sign but same magnitude. The sum of VLDO1 and VLOD2 is guaranteed to be less than 50 mV. 18 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 Feature Description (continued) 8.3.5 V3P3 Power Switch The integrated power switch is used to cut the 3.3-V supply to the EPD panel and is controlled through the V3P3_EN pin of the ENABLE register. In SLEEP mode the switch is automatically turned off and its output is discharged to ground. The default power-up state is OFF. To turn the switch ON, set the V3P3_ENbit to 1. 8.3.6 VCOM Adjustment VCOM is the output of a power-amplifier with an output voltage range of 0 V to –5.11 V, adjustable in 10-mV steps. In a typical application VCOM is connected to the VCOM terminal of the EPD panel and the amplifier is controlled through the VCOM_CTRL pin. With VCOM_CTRL high, the amplifier drives the VCOM pin to the voltage specified by the VCOM1 and VCOM2 register. For ease of design, the VCOM_CTRL pin may also be tied to the battery or IO supply. In this case, VCOM is enabled with STROBE4 during the power-up sequence and disabled on STROBE1 of the power-down sequence. Therefore VCOM is the last rail to be enabled and the first to be disabled. 8.3.6.1 Kick-Back Voltage Measurement TPS65186 can perform a voltage measurement on the VCOM pin to deter87/mine the kick-back voltage of the panel. This allows in-system calibration of VCOM. To perform a kick-back voltage measurement, follow these steps: • Pull the WAKEUP pin and the PWRUP pin high to enable all output rails. • Set the Hi-Z bit in the VCOM2 register. This puts the VCOM pin in a high-impedance state. • Drive the panel with the Null waveform. Refer to E-Ink specification for detail. • Set the ACQ bit in the VCOM2 register to 1. This starts the measurement routine. • When the measurement is complete, the ACQC (Acquisition Complete) bit in the INT1 register is set and the nINT pin is pulled low. • The measurement result is stored in the VCOM[8:0] bits of the VCOM1 and VCOM2 register. The measurement result is not automatically programmed into nonvolatile memory. Changing the power-up default is described in Storing the VCOM Power-Up Default Value in Memory. 8.3.6.2 Storing the VCOM Power-Up Default Value in Memory The power-up default value of VCOM can be user-set and programmed into nonvolatile memory. To do so, write the default value to the VCOM[8:0] bits of the VCOM1 and VCOM2 register, then set the PROG bit in VCOM2 register to 1. First, all power rails are shut down, then the VCOM[8:0] value is committed to nonvolatile memory such that it becomes the new power-up default. Once programming is complete, the PRGC bit in the INT1 register is set and the nINT pin is pulled low. To verify that the new value has been saved properly, first write the VCOM[8:0] bits to 0x000h, then pull the WAKEUP pin low. After the WAKEUP pin is pulled back high, read the VCOM[8:0] bits to verify that the new default value is correct. VIN From Input Supply (3.0 V-6.0 V) INT_LDO 4.7uF 10uF 4.7uF To panel back-plane (-0.5 V to -5.0 V, 15 mA) From uC INT_LDO VREF VREF AGND1 4.7uF VCOM VCOM_CTRL DAC 4.7uF VCOM[8:0] VCOM_PWR From VN (-17V) Figure 21. Block Diagram of VCOM Circuit Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 19 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com Feature Description (continued) SETUP Pull WAKEUP = HIGH Pull PWRUP= HIGH Write HiZ = 1 Device enters ACTIVE mode All power rails are up except VCOM VCOM pin is in HiZ state Processor drives panel with NULL waveform MEASUREMENT Write ACQ = 1 Wait for ACQC interrupt Read result from VCOM1/2 registers VERIFICATION PROGRAMMING Pull PWRUP= LOW Write HiZ = 0 Write PROG= 1 Wait for PRGC interrupt Starts A/D conversion Indicates A/D conversion is complete If AVG[1:0] is 00, interrupt is issed after all conversions are complete and average has been calcutated. Check result and decide to keep the value or repeat measurment. Device enters STANDBY mode Starts the EEPROM programming cycle . Power must not be interrupted. Indicates programming is complete Pull WAKEUP = LOW Device enters SLEEP mode Pull WAKEUP = HIGH Device enters STANDBY mode Read VCOM[8:0] Compare against written value to confirm new default has been programmed correctly. Figure 22. VCOM Calibration Flow 20 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 Feature Description (continued) 8.3.7 Fault Handling and Recovery The TPS65186 monitors input/output voltages and die temperature; the device will take action if operating conditions are outside normal limits when the following are encountered: • Thermal Shutdown (TSD) • Positive Boost Undervoltage (VB_UV) • Inverting Buck-Boost Undervoltage (VN_UV) • Input Undervoltage Lockout (UVLO) The TPS65186 shuts down all power rails and enters STANDBY mode. Shutdown follows the order defined by DWNSEQx registers. The exception is VCOM fault witch leads to immediate shutdown of all rails. Once a fault is detected, the PWR_GOOD and nINT pins are pulled low and the corresponding interrupt bit is set in the interrupt register. Power rails cannot be re-enabled unless the interrupt bits have been cleared by reading the INT1 and INT2 register. Alternatively, toggling the WAKEUP pin also resets the interrupt bits. As the PWRUP input is edge sensitive, the host must toggle the PWRUP pin to re-enable the rails through GPIO control, that is, it must bring the PWRUP pin low before asserting it again. Alternatively rails can be re-enbled through the I2C interface. Whenever the TPS65186 encounters undervoltage on VNEG (VNEG_UV), VPOS (VPOS_UV), VEE (VEE_UV), or VDDH (VDDH_UV), rails are not shut down but the PWR_GOOD and nINT is pulled low with the corresponding interrupt bit set. The device remains in ACTIVE mode and recovers automatically once the fault has been removed. 8.3.8 Power Good Pin The power good pin (PWR_GOOD) is an open-drain output that is pulled high (by an external pullup resistor) when all four power rails (CP1, CP2, LDO1, LDO2) are in regulation and is pulled low if any of the rails encounters a fault or is disabled. PWR_GOOD remains low if one of the rails is not enabled by the host and only after all rails are in regulation PWR_GOOD is released to Hi-Z state (pulled up by external resistor). 8.3.9 Interrupt Pin The interrupt pin (nINT) is an open-drain output that is pulled low whenever one or more of the INT1 or INT2 bits are set. The nINT pin is released (returns to Hi-Z state) and fault bits are cleared once the register with the set bit has been read by the host. If the fault persists, the nINT pin will be pulled low again after a maximum of 32 µs. Interrupt events can be masked by re-setting the corresponding enable bit in the INT_EN1 and INT_EN2 register, that is, the user can determine which events cause the nINT pin to be pulled low. The status of the enable bits affects the nINT pin only and has no effect on any of the protection and monitoring circuits or the INT1/INT2 bits themselves. Persisting faults such as thermal shutdown can cause the nINT pin to be pulled low for an extended period of time which can keep the host in a loop trying to resolve the interrupt. If this behavior is not desired, set the corresponding mask bit after receiving the interrupt and keep polling the INT1/INT2 register to see when the fault condition has disappeared. After the fault is resolved, unmask the interrupt bit again. 8.3.10 Panel Temperature Monitoring The TPS65186 provides circuitry to bias and measure an external Negative Temperature Coefficient Resistor (NTC) to monitor the display panel temperature in a range from –10°C to 85°C with and accuracy of ±1°C from 0°C to 50°C. Temperature measurement must be triggered by the controlling host and the last temperature reading is always stored in the TMST_VALUE register. Interrupts are issued when the temperature exceeds the programmable HOT, or drops below the programmable COLD threshold, or when the temperature has changed by more than a user-defined threshold from the baseline value. Details are explained under Hot, Cold, and Temperature-Change Interrupts. Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 21 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com Feature Description (continued) 8.3.10.1 NTC Bias Circuit Figure 23 shows the block diagram of the NTC bias and measurement circuit. The NTC is biased from an internally generated 2.25-V reference voltage through an integrated 7.307-kΩ bias resistor. A 43-kΩ resistor is connected parallel to the NTC to linearize the temperature response curve. The circuit is designed to work with a nominal 10-kΩ NTC and achieves accuracy of ±1°C from 0°C to 50°C. The voltage drop across the NTC is digitized by a 10-bit SAR ADC and translated into an 8-bit two’s complement by digital per Table 1. Table 1. ADC Output Value vs Temperature TEMPERATURE TMST_VALUE[7:0] < –10°C 1111 0110 –10°C 1111 0110 –9°C 1111 0111 ... ... –2°C 1111 1110 –1°C 1111 1111 0°C 0000 0000 1°C 0000 0001 2°C 0000 0010 ... ... 25°C 0001 1001 ... 85°C 0101 0101 > 85°C 0101 0101 2.25V 7.307k 10 Digital ADC TS 43k 10k NTC AGND2 Figure 23. NTC Bias and Measurement Circuit A temperature measurement is triggered by setting the READ_THERM bit of the TMST1 register to 1.During the A/D conversion the CONV_END bit of the TMST1 register reads 0, otherwise it reads 1. At the end of the A/D conversion the EOC bit in the INT2 register is set and the temperature value is available in the TMST_VALUE register. 22 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 8.3.10.2 Hot, Cold, and Temperature-Change Interrupts Each temperature acquisition is compared against the programmable TMST_HOT and TMST_COLD thresholds and to the baseline temperature, to determine if the display is within allowed operating temperature range and if the temperature has changed by more than a user-defined threshold since the last update. The first temperature reading after the WAKEUP pin has been pulled high automatically becomes the baseline temperature. Any subsequent reading is compared against the baseline temperature. If the difference is equal or greater than the threshold value, an interrupt is issued (DTX bit in register INT1 is set to 1) and the latest value becomes the new baseline. If the difference is less than the threshold value, no action is taken. The threshold value is defined by DT[1:0] bits in the TMST1 register and has a default value of ±2°C. In summary: • When the temperature is equal or less than the TMST_COLD[3:0] threshold, the TMST_COLD interrupt bit of the INT1 register is set, and the nINT pin is pulled low. • When the temperature is greater than TMST_COLD but lower then TMST_HOT, no action is taken. • When the temperature is equal or greater than the TMST_HOT[3:0] threshold, the TMST_HOT interrupt bit of the INT1 register is set, and the nINT pin is pulled low. • If the last temperature is different from the baseline temperature by ±2°C (default) or more, the DTX interrupt bit of the INT1 register is set. The latest temperature becomes the new baseline temperature. By default the DTX interrupt is disabled, that is, the nINT pin is not pulled low unless the DTX_EN bit was previously set high. • If the last temperature change is less than ±2°C (default), no action is taken. 8.3.10.3 Typical Application of the Temperature Monitor In a typical application the temperature monitor and interrupts are used in the following manner: • After the WAKEUP pin has been pulled high, the Application Processor (AP) writes 0x80h to the TMST1 register (address 0x0Dh). This starts the temperature measurement. • The AP waits for the EOC interrupt. Alternatively the AP can poll the CONV_END bit in register TMST1. This will notify the AP that the A/D conversion is complete and the new temperature reading is available in the TMST_VALUE register (address (0x00h). • The AP reads the temperature value from the TMST_VALUE register (address (0x00h). • If the temperature changes by ±2°C (default) or more from the first reading, the processor is notified by the DTX interrupt. The A/P may or may not decide to select a different set of waveforms to drive the panel. • If the temperature is outside the allowed operating range of the panel, the processor is notified by the THOT and TCOLD interrupts, respectively. The processor may or may not decide to continue with the page update. • When an overtemperature or undertemperature has been detected, the AP must reset the TMST_HOT_EN or TMST_COLD_EN bits, respectively, to avoid the nINT pin to be continuously pulled low. The TMST_HOT and TMST_COLD interrupt bits then must be polled continuously, to determine when the panel temperature recovers to the normal operating range. Once the temperature has recovered, the TMST_HOT_EN or TMST_COLD_EN bits must be set to 1 again and normal operation can resume. Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 23 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com 8.4 Device Functional Modes The TPS65186 has three modes of operation, SLEEP, STANDBY, and ACTIVE. SLEEP mode is the lowestpower mode in which all internal circuitry is turned off. In STANDBY, all power rails are shut down but the device is ready to accept commands through the I2C interface. In ACTIVE mode one or more power rails are enabled. 8.4.1 SLEEP This is the lowest power mode of operation. All internal circuitry is turned off, registers are reset to default values and the device does not respond to I2C communications. TPS65186 enters SLEEP mode whenever WAKEUP pin is pulled low. 8.4.2 STANDBY In STANDBY all internal support circuitry is powered up and the device is ready to accept commands through the I2C interface but none of the power rails are enabled. The device enters STANDBY mode when the WAKEUP pin is pulled high and either the PWRUP pin is pulled low or the STANDBY bit is set. The device also enters STANDBY mode if input undervoltage lockout (UVLO), positive boost undervoltage (VB_UV), or inverting buckboost undervoltage (VN_UV) is detected, thermal shutdown occurs, or the PROG bit is set (see Figure 22) 8.4.3 ACTIVE The device is in ACTIVE mode when any of the output rails are enabled and no fault condition is present. This is the normal mode of operation while the device is powered up. 8.4.4 Mode Transitions 8.4.4.1 SLEEP → ACTIVE WAKEUP pin is pulled high with PWRUP pin high. Rails come up in the order defined by the UPSEQx registers (OK to tie WAKEUP and PWRUP pin together). 8.4.4.2 SLEEP → STANDBY WAKEUP pin is pulled high with PWRUP pin low. Rails will remain powered down. 8.4.4.3 STANDBY → ACTIVE WAKEUP pin is high and PWRRUP pin is pulled high (rising edge) or the ACTIVE bit is set. Output rails will power up in the order defined by the UPSEQx registers. 8.4.4.4 ACTIVE → STANDBY WAKEUP pin is high and STANDBY bit is set or PWRUP pin is pulled low (falling edge). Rails are shut down in the order defined by DWNSEQx registers. Device also enters STANDBY in the event of thermal shutdown (TSD), undervoltage lockout (UVLO), positive boost or inverting buck-boost undervoltage (UV), VCOM fault (VCOMF), or when the PROG bit is set (see Figure 22). 8.4.4.5 STANDBY → SLEEP WAKEUP pin is pulled low while none of the output rails are enabled. 8.4.4.6 ACTIVE → SLEEP WAKEUP pin is pulled low while at least one output rail is enabled. Rails are shut down in the order defined by DWNSEQx registers. 24 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 Device Functional Modes (continued) POWER DOWN All rails = OFF V3P3 switch = OFF I2C = NO Registers à default SLEEP WAKEUP = high & PWRUP= low WAKEUP = low WAKEUP = low All rails I2C STANDBY WAKEUP = high & (STANDBY bit = 1|| PWRUP(¯) || FAULT ) = OFF = YES WAKEUP = high & (ACTIVE bit = 1 || PWRUP( ) ) ¯ WAKEUP = high & PWRUP = high Battery removed ACTIVE Rails I2C = ON = YES NOTES: ||, & = logic OR, and AND. (↑), (↓) = rising edge, falling edge UVLO = Undervoltage Lockout TSD = Thermal Shutdown UV = Undervoltage FAULT = UVLO || TSD || BOOST UV || VCOM fault Figure 24. Global State Diagram Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 25 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com 8.5 Programming 8.5.1 I2C Bus Operation The TPS65186 hosts a slave I2C interface that supports data rates up to 400 kbit/s and auto-increment addressing and is compliant to I2C standard 3.0. Slave Address + R/nW Reg Address S A6 A5 A4 A3 A2 A1 A0 S Start Condition A Acknowledge A6 ... A0 Device Address Read / not Write P Stop Condition S7 ... S0 Sub-Address R/nW R/nW A Data S7 S6 S5 S4 S3 S2 S1 S0 A D7 D6 D5 D4 D3 D2 D1 D0 A P D7 ... D0 Data Figure 25. Subaddress in I2C Transmission The I2C Bus is a communications link between a controller and a series of slave terminals. The link is established using a two-wire bus consisting of a serial clock signal (SCL) and a serial data signal (SDA). The serial clock is sourced from the controller in all cases where the serial data line is bidirectional for data communication between the controller and the slave terminals. Each device has an open drain output to transmit data on the serial data line. An external pullup resistor must be placed on the serial data line to pull the drain output high during data transmission. Data transmission is initiated with a start bit from the controller as shown in Figure 27. The start condition is recognized when the SDA line transitions from high to low during the high portion of the SCL signal. Upon reception of a start bit, the device will receive serial data on the SDA input and check for valid address and control information. If the appropriate slave address bits are set for the device, then the device will issue an acknowledge pulse and prepare to receive the register address. Depending on the R/nW bit, the next byte received from the master is written to the addressed register (R/nW = 0) or the device responds with 8-bit data from the register (R/nW = 1). Data transmission is completed by either the reception of a stop condition or the reception of the data word sent to the device. A stop condition is recognized as a low to high transition of the SDA input during the high portion of the SCL signal. All other transitions of the SDA line must occur during the low portion of the SCL signal. An acknowledge is issued after the reception of valid address, sub-address and data words. The I2C interfaces will auto-sequence through register addresses, so that multiple data words can be sent for a given I2C transmission. See Figure 26 and Figure 27 for details. S SLAVE ADDRESS W A REG ADDRESS A DATA REGADDR A DATA SUBADDR +n A DATA SUBADDR +n+1 Ā P A S SLAVE ADDRESS R A DATA REGADDR +n A n bytes + ACK S SLAVE ADDRESS W A REG ADDRESS DATA REGADDR DATA REGADDR + n+1 A Ā P n bytes + ACK From master to slave R Read (high) S Start Ā Not Acknowlege From slave to master W Write (low) P Stop A Acknowlege TOP: Master writes data to slave. BOTTOM: Master reads data from slave. Figure 26. I2C Data Protocol 26 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 Programming (continued) SDA SCL 1-7 8 9 ADDRESS R/W ACK 1-7 8 9 1-7 8 9 S START P DATA ACK DATA ACK/ nACK STOP Figure 27. I2C Start/Stop/Acknowledge Protocol 8.6 Register Maps REGISTER ADDRESS (HEX) NAME DESCRIPTION 0 0x00 TMST_VALUE Thermistor value read by ADC 1 0x01 ENABLE Enable/disable bits for regulators 2 0x02 VADJ VPOS/VNEG voltage adjustment 3 0x03 VCOM1 Voltage settings for VCOM 4 0x04 VCOM2 Voltage settings for VCOM + control 5 0x05 INT_EN1 Interrupt enable group1 6 0x06 INT_EN2 Interrupt enable group2 7 0x07 INT1 Interrupt group1 8 0x08 INT2 Interrupt group2 9 0x09 UPSEQ0 Power-up strobe assignment 10 0x0A UPSEQ1 Power-up sequence delay times 11 0x0B DWNSEQ0 Power-down strobe assignment 12 0x0C DWNSEQ1 Power-down sequence delay times 13 0x0D TMST1 Thermistor configuration 14 0x0E TMST2 Thermistor hot temp set 15 0x0F PG Power good status each rails 16 0x10 REVID Device revision ID information Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 27 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com 8.6.1 Thermistor Readout (TMST_VALUE) Address – 0x00h DATA BIT D7 D6 D5 FIELD NAME D4 D3 D2 D1 D0 TMST_VALUE[7:0] READ/WRITE R R R R R R R R RESET VALUE N/A N/A N/A N/A N/A N/A N/A N/A FIELD NAME BIT DEFINITION Temperature read-out 1111 0110 – < -10°C 1111 0110 – -10°C 1111 0111 – -9°C ... 1111 1110 – -2°C 1111 1111 – -1 °C TMST_VALUE[7:0] 0000 0000 – 0 °C 0000 0001 – 1°C 0000 0010 – 2°C ... 0001 1001 – 25°C ... 0101 0101 – 85°C 0101 0101 – > 85°C 28 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 8.6.2 Enable (ENABLE) Address – 0x01h DATA BIT D7 D6 D5 D4 D3 D2 D1 D0 FIELD NAME ACTIVE STANDBY V3P3_EN VCOM_EN VDDH_EN VPOS_EN VEE_EN VNEG_EN READ/WRITE R/W R/W R/W R/W R/W R/W R/W R/W RESET VALUE 0 0 0 0 0 0 0 0 BIT DEFINITION (1) FIELD NAME STANDBY to ACTIVE transition bit ACTIVE 1 – Transition from STANDBY to ACTIVE mode. Rails power up as defined by UPSEQx registers 0 – no effect NOTE: After transition bit is cleared automatically STANDBY to ACTIVE transition bit STANDBY 1 – Transition from STANDBY to ACTIVE mode. Rails power up as defined by DWNSEQx registers 0 – no effect NOTE: After transition bit is cleared automatically. STANDBY bit has priority over AVTIVE. VIN3P3 to V3P3 switch enable V3P3_EN 1 – switch is ON 0 – switch is OFF VCOM buffer enable VCOM_EN 1 – enabled 0 – disabled VDDH charge pump enable VDDH_EN 1 – enabled 0 – disabled VPOS LDO regulator enable VPOS_EN 1 – enabled 0 – disabled NOTE: VPOS cannot be enabled before VNEG is enabled. VEE charge pump enable VEE_EN 1 – enabled 0 – disabled VNEG LDO regulator enable VNEG_EN 1 – enabled 0 – disabled NOTE: When VNEG is disabled VPOS will also be disabled. (1) Enable bits always reflect actual status of the corresponding rail. Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 29 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com 8.6.3 Voltage Adjustment Register (VADJ) Address – 0x02h DATA BIT D7 D6 D5 D4 D3 FIELD NAME not used not used not used not used not used READ/WRITE R/W R/W R/W R/W R R/W R/W R/W RESET VALUE 0 0 1 0 0 0E2 1E2 1E2 D2 D1 D0 R/W R/W R/W R/W 1 1 0 1 FIELD NAME D2 D1 D0 VSET[2:0] BIT DEFINITION not used N/A not used N/A not used N/A not used N/A not used N/A VPOS and VNEG voltage setting 000 - not valid 001 - not valid 010 - not valid VSET[2:0] 011 - ±15.000 V 100 - ±14.750 V 101 - ±14.500 V 110 - ±14.250 V 111 - reserved 8.6.4 VCOM 1 (VCOM1) Address – 0x03h DATA BIT D7 D6 D5 D4 FIELD NAME READ/WRITE RESET VALUE R/W E2 0 FIELD NAME VCOM[7:0] 30 D3 VCOM [7:0] R/W E2 1 R/W E2 1 R/W E2 1 BIT DEFINITION VCOM voltage, least significant byte. See VCOM 2 (VCOM2) for details. Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 8.6.5 VCOM 2 (VCOM2) Address – 0x04h DATA BIT D7 D6 D5 FIELD NAME ACQ PROG HiZ READ/WRITE R/W R/W R/W R/W RESET VALUE 0 0 0 0 FIELD NAME D4 D3 D2 D1 D0 not used not used VCOM[8] R/W R/W R/W R/W 0 1 0 0E2 AVG[1:0] BIT DEFINITION Kick-back voltage acquisition bit 1 – starts kick-back voltage measurement routine ACQ 0 – no effect NOTE: After measurement is complete bit is cleared automatically and measurement result is reflected in VCOM[8:0] bits. VCOM programming bit PROG 1 – VCOM[8:0] value is committed to nonvolatile memory and becomes new power-up default 0 – no effect NOTE: After programming bit is cleared automatically and TPS65186 will enter STANDBY mode. VCOM HiZ bit HiZ 1 – VCOM pin is placed into hi-impedance state to allow VCOM measurement 0 – VCOM amplifier is connected to VCOM pin Number of acquisitions that is averaged to a single kick-back voltage measurement 00 – 1x 01 – 2x AVG[1:0] 10 – 4x 11 – 8x NOTE: When the ACQ bit is set, the state machine repeat the A/D conversion of the kick-back voltage AVD[1:0] times and returns a single, averaged, value to VCOM[8:0] not used N/A not used N/A VCOM voltage adjustment VCOM = VCOM[8:0] x -10 mV in the range from 0 mV to –5.110 V 0x000h – 0 0000 0000 – –0 mV 0x001h – 0 0000 0001 – –10 mV VCOM[8:0] 0x002h – 0 0000 0010 – –20 mV ... 0x07Dh - 0 0111 1101 – –1250 mV ... 0x1FEh – 1 1111 1110 – –5100 mV 0x1FFh – 1 1111 1111 – –5110 mV Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 31 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com 8.6.6 Interrupt Enable 1 (INT_EN1) Address – 0x05h DATA BIT D7 D6 D5 D4 D3 D2 D1 D0 TMST_COLD _EN UVLO_EN ACQC_EN PRGC_EN FIELD NAME DTX_EN TSD_EN HOT_EN TMST_HOT _EN READ/WRITE R R/W R/W R/W R/W R/W R R RESET VALUE 0 1 1 1 1 1 1 1 BIT DEFINITION (1) FIELD NAME Panel temperature-change interrupt enable DTX_EN 1 – enabled 0 – disabled Thermal shutdown interrupt enable TSD_EN 1 – enabled 0 – disabled Thermal shutdown early warning enable HOT_EN 1 – enabled 0 – disabled Thermistor hot interrupt enable TMST_HOT_EN 1 – enabled 0 – disabled Thermistor cold interrupt enable TMST_COLD_EN 1 – enabled 0 – disabled VIN undervoltage detect interrupt enable UVLO_EN 1 – enabled 0 – disabled VCOM acquisition complete interrupt enable ACQC_EN 1 – enabled 0 – disabled VCOM programming complete interrupt enable PRGC_EN 1 – enabled 0 – disabled (1) 32 Enabled means nINT pin is pulled low when interrupt occurs. Disabled means nINT pin is not pulled low when interrupt occurs. Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 8.6.7 Interrupt Enable 2 (INT_EN2) Address – 0x06h DATA BIT D7 D6 D5 D4 D3 D2 D1 D0 FIELD NAME VBUVEN VDDHUVEN VNUV_EN VPOSUVEN VEEUVEN VCOMFEN VNEGUVEN EOCEN READ/WRITE R/W R/W R/W R/W R/W R/W R/W R/W RESET VALUE 1 1 1 1 1 1 1 1 BIT DEFINITION (1) FIELD NAME Positive boost converter undervoltage detect interrupt enable VBUVEN 1 – enabled 0 – disabled VDDH undervoltage detect interrupt enable VDDHUVEN 1 – enabled 0 – disabled Inverting buck-boost converter undervoltage detect interrupt enable VNUVEN 1 – enabled 0 – disabled VPOS undervoltage detect interrupt enable VPOSUVEN 1 – enabled 0 – disabled VEE undervoltage detect interrupt enable VEEUVEN 1 – enabled 0 – disabled VCOM FAULT interrupt enable VCOMFEN 1 – enabled 0 – disabled VNEG undervoltage detect interrupt enable VNEGUVEN 1 – enabled 0 – disabled Temperature ADC end of conversion interrupt enable EOCEN 1 – enabled 0 – disabled (1) Enabled means nINT pin is pulled low when interrupt occurs. Disabled means nINT pin is not pulled low when interrupt occurs. Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 33 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com 8.6.8 Interrupt 1 (INT1) Address – 0x07h DATA BIT D7 D6 D5 D4 D3 D2 D1 D0 FIELD NAME DTX TSD HOT TMST_HOT TMST_COLD UVLO ACQC PRGC READ/WRITE R R R R R R R R RESET VALUE 0 N/A N/A N/A N/A N/A 0 0 FIELD NAME BIT DEFINITION Panel temperature-change interrupt DTX 1 – temperature has changed by 3 deg or more over previous reading 0 – no significance Thermal shutdown interrupt TSD 1 – chip is in overtemperature shutdown 0 – no fault Thermal shutdown early warning HOT 1 – chip is approaching overtemperature shutdown 0 – no fault Thermistor hot interrupt TMST_HOT 1 – thermistor temperature is equal or greater than TMST_HOT threshold 0 – no fault Thermistor cold interrupt TMST_COLD 1 – thermistor temperature is equal or less than TMST_COLD threshold 0 – no fault VIN undervoltage detect interrupt UVLO 1 – input voltage is below UVLO threshold 0 – no fault VCOM acquisition complete ACQC 1 – VCOM measurement is compete 0 – no significance VCOM programming complete PRGC 1 – VCOM programming is complete 0 – no significance 34 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 8.6.9 Interrupt 2 (INT2) Address – 0x08h DATA BIT D7 D6 D5 D4 D3 D2 D1 D0 FIELD NAME VB_UV VDDH_UV VN_UV VPOS_UV VEE_UV VCOMF VNEG_UV EOC READ/WRITE R R R R R R R R RESET VALUE N/A N/A N/A N/A N/A N/A N/A N/A FIELD NAME BIT DEFINITION Positive boost converter undervoltage detect interrupt VB_UV 1 – under-voltage on DCDC1 detected 0 – no fault VDDH undervoltage detect interrupt VDDH_UV 1 – undervoltage on VDDH charge pump detected 0 – no fault Inverting buck-boost converter undervoltage detect interrupt VN_UV 1 – undervoltage on DCDC2 detected 0 – no fault VPOS undervoltage detect interrupt VPOS_UV 1 – undervoltage on LDO1(VPOS) detected 0 – no fault VEE undervoltage detect interrupt VEE_UV 1 – undervoltage on VEE charge pump detected 0 – no fault VCOM fault detection VCOMF 1 – fault on VCOM detected (VCOM is outside normal operating range) 0 – no fault VNEG undervoltage detect interrupt VNEG_UV 1 – undervoltage on LDO2(VNEG) detected 0 – no fault ADC end of conversion interrupt EOC 1 – ADC conversion is complete (temperature acquisition is complete) 0 – no significance Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 35 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com 8.6.10 Power Up Sequence Register 0 (UPSEQ0) Address – 0x09h DATA BIT D7 FIELD NAME D6 VDDH_UP[1:0] D5 D4 D3 VPOS_UP[1:0] D2 VEE_UP[1:0] D1 D0 VNEG_UP[1:0] READ/WRITE R/W R/W R/W R/W R/W R/W R/W R/W RESET VALUE 1E2 1E2 1E2 0E2 0E2 1E2 0E2 0E2 FIELD NAME BIT DEFINITION VDDH power-up order 00 – power up on STROBE1 VDDH_UP[1:0] 01 – power up on STROBE2 10 – power up on STROBE3 11 – power up on STROBE4 VPOS power-up order 00 – power up on STROBE1 VPOS_UP[1:0] 01 – power up on STROBE2 10 – power up on STROBE3 11 – power up on STROBE4 VEE power-up order 00 – power up on STROBE1 VEE_UP[1:0] 01 – power up on STROBE2 10 – power up on STROBE3 11 – power up on STROBE4 VNEG power-up order 00 – power up on STROBE1 VNEG_UP[1:0] 01 – power up on STROBE2 10 – power up on STROBE3 11 – power up on STROBE4 6ms 6ms 6ms 6ms 6ms 48ms VDDH VPOS VNEG VEE Figure 28. Default Power-Up/Power-Down Sequence 36 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 8.6.11 Power Up Sequence Register 1 (UPSEQ1) Address – 0x0Ah DATA BIT FIELD NAME D7 D6 UDLY4[1:0] D5 D4 UDLY3[1:0] D3 D2 UDLY2[1:0] D1 D0 UDLY1[1:0] READ/WRITE R/W R/W R/W R/W R/W R/W R/W R/W RESET VALUE 0E2 1E2 0E2 1E2 0E2 1E2 0E2 1E2 FIELD NAME BIT DEFINITION DLY4 delay time set; defines the delay time from STROBE3 to STROBE4 during power up. 00 – 3 ms UDLY4[1:0] 01 – 6 ms 10 – 9 ms 11 – 12 ms DLY3 delay time set; defines the delay time from STROBE2 to STROBE3 during power up. 00 – 3 ms UDLY3[1:0] 01 – 6 ms 10 – 9 ms 11 – 12 ms DLY2 delay time set; defines the delay time from STROBE1 to STROBE2 during power up. 00 – 3 ms UDLY2[1:0] 01 – 6 ms 10 – 9 ms 11 – 12 ms DLY1 delay time set; defines the delay time from VN_PG high to STROBE1 during power up. 00 – 3 ms UDLY1[1:0] 01 – 6 ms 10 – 9 ms 11 – 12 ms Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 37 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com 8.6.12 Power Down Sequence Register 0 (DWNSEQ0) Address – 0x0Bh DATA BIT D7 D6 D5 D4 D3 D2 D0 VDDH_DWN[1:0] VPOS_DWN[1:0] READ/WRITE R/W R/W R/W R/W R/W R/W R/W R/W RESET VALUE 0E2 0E2 0E2 1E2 1E2 1E2 1E2 0E2 FIELD NAME VEE_DWN[1:0] D1 FIELD NAME VNEG_DWN[1:0] BIT DEFINITION VDDH power-down order 00 – power down on STROBE1 VDDH_DWN[1:0] 01 – power down on STROBE2 10 – power down on STROBE3 11 – power down on STROBE4 VPOS power-down order 00 – power down on STROBE1 VPOS_DWN[1:0] 01 – power down on STROBE2 10 – power down on STROBE3 11 – power down on STROBE4 VEE power-down order 00 – power down on STROBE1 VEE_DWN[1:0] 01 – power down on STROBE2 10 – power down on STROBE3 11 – power down on STROBE4 VNEG power-down order 00 – power down on STROBE1 VNEG_DWN[1:0] 01 – power down on STROBE2 10 – power down on STROBE3 11 – power down on STROBE4 38 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 8.6.13 Power Down Sequence Register 1 (DWNSEQ1) Address – 0x0Ch DATA BIT FIELD NAME D7 D6 DDLY4[1:0] D5 D4 DDLY3[1:0] D3 D2 DDLY2[1:0] D1 D0 DDLY1 DFCTR READ/WRITE R/W R/W R/W R/W R/W R/W R/W R/W RESET VALUE 1E2 1E2 1E2 0E2 0E2 0E2 0E2 0E2 FIELD NAME BIT DEFINITION DLY4 delay time set; defines the delay time from STROBE3 to STROBE4 during power down. 00 – 6 ms DDLY4[1:0] 01 – 12 ms 10 – 24 ms 11 – 48 ms DLY3 delay time set; defines the delay time from STROBE2 to STROBE3 during power down. 00 – 6 ms DDLY3[1:0] 01 – 12 ms 10 – 24 ms 11 – 4 8ms DLY2 delay time set; defines the delay time from STROBE1 to STROBE2 during power down. 00 – 6 ms DDLY2[1:0] 01 – 12 ms 10 – 24 ms 11 – 48 ms DLY2 delay time set; defines the delay time from WAKEUP low to STROBE1 during power down. DDLY1 0 – 3 ms 1 – 6 ms At power-down delay time DLY2[1:0], DLY3[1:0], DLY4[1:0] are multiplied with DFCTR[1:0] DFCTR 0 – 1× 1 – 16× Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 39 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com 8.6.14 Thermistor Register 1 (TMST1) Address – 0x0Dh DATA BIT D7 D6 D5 D4 D3 D2 FIELD NAME READ_THERM not used CONV_END not used not used not used READ/WRITE R/W R/W R R/W R/W R/W R/W R/W RESET VALUE 0 0 1 0 0 0 0 0 FIELD NAME D1 D0 DT[1:0] BIT DEFINITION Read thermistor value READ_THERM 1 – initiates temperature acquisition 0 – no effect NOTE: Bit is self-cleared after acquisition is completed not used N/A ADC conversion done flag CONV_END 1 – conversion is finished 0 – conversion is not finished not used N/A not used N/A Panel temperature-change interrupt threshold 00 – 2°C 01 – 3°C DT[1:0] 10 – 4°C 11 – 5°C DTX interrupt is issued when difference between most recent temperature reading and baseline temperature is equal to or greater than threshold value. See Hot, Cold, and Temperature-Change Interrupts for details. 40 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 8.6.15 Thermistor Register 2 (TMST2) Address – 0x0Eh DATA BIT D7 FIELD NAME D6 D5 D4 D3 TMST_COLD[3:0] D2 D1 D0 TMST_HOT[3:0] READ/WRITE R/W R/W R/W R/W R/W R/W R/W R/W RESET VALUE 0 1 1 1 1 0 0 0 FIELD NAME BIT DEFINITION Thermistor COLD threshold 0000 – -7°C 0001 – -6°C 0010 – -5°C 0011 – -4°C 0100 – -3°C 0101 – -2°C 0110 – -1°C TMST_COLD [3:0] 0111 – 0°C 1000 – 1°C 1001 – 2°C 1010 – 3°C 1011 – 4°C 1100 – 5°C 1101 – 6°C 1110 – 7°C 1111 – 8°C NOTE: An interrupt is issued when thermistor temperature is equal or less than COLD threshold Thermistor HOT threshold 0000 – 42°C 0001 – 43°C 0010 – 44°C 0011 – 45°C 0100 – 46°C 0101 – 47°C 0110 – 48°C TMST_HOT [3:0] 0111 – 49°C 1000 – 50°C 1001 – 51°C 1010 – 52°C 1011 – 53°C 1100 – 54°C 1101 – 55°C 1110 – 56°C 1111 – 57°C NOTE: An interrupt is issued when thermistor temperature is equal or greater than HOT threshold Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 41 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com 8.6.16 Power Good Status (PG) Address – 0x0Fh DATA BIT D7 D6 D5 D4 D3 D2 D1 D0 FIELD NAME VB_PG VDDH_PG VN_PG VPOS_PG VEE_PG not used VNEG_PG not used READ/WRITE R R R R R R R R RESET VALUE 0 0 0 0 0 0 0 0 BIT DEFINITION (1) FIELD NAME Positive boost converter power good VB_PG 1 – DCDC1 is in regulation 0 – DCDC1 is not in regulation or turned off VDDH power good VDDH_PG 1 – VDDH charge pump is in regulation 0 – VDDH charge pump is not in regulation or turned off Inverting buck-boost power good VN_PG 1 – DCDC2 is in regulation 0 – DCDC2 is not in regulation or turned off VPOS power good VPOS_PG 1 – LDO1(VPOS) is in regulation 0 – LDO1(VPOS) is not in regulation or turned off VEE power good VEE_PG 1 – VEE charge pump is in regulation 0 – VEE charge pump is not in regulation or turned off not used N/A VNEG power good VNEG_PG 1 – LDO2(VNEG) is in regulation 0 – LDO2(VNEG) is not in regulation or turned off not used (1) 42 N/A PG pin is pulled hi (Hi-Z state) when VDDH_PG = VPOS_PG = VEE_PG = VNEG_PG = 1 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 8.6.17 Revision and Version Control (REVID) Address – 0x10h DATA BIT D7 D6 D5 D4 FIELD NAME D3 D2 D1 D0 REVID[7:0] READ/WRITE R R R R R R R R RESET VALUE 0 1 0 0 0E2 1E2 0E2 1E2 FIELD NAME BIT DEFINITION REVID[7:6] MJREV REVID[5:4] MNREV REVID[3:0] VERSION 0100 0101 - TPS65186 1p0 REVID [7:0] 0101 0101 – TPS65186 1p1 0110 0101 – TPS65186 1p2 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 43 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com 9 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 9.1 Application Information The TPS65186 is used to power display screens in E-book applications, specifically E-Ink Vizplex display, by connecting the screen to the positive and negative charge pump, LDOs 1 and 2, and VCOM rails. The display screens size that can be supported up to 9.7 inches. 9.2 Typical Application VIN From Input Supply (3. 0 V-6. 0 V) TS TEMP SENSOR VN _SW VDDH_D VDDH_ DRV VDDH_FB POSITIVE CHARGE PUMP VPOS LDO1 DCDC2 VN VCOM VCOM VB_SW From Input Supply (3. 0 V-6. 0 V) VCOM_ PANEL DCDC1 VB VNEG LDO2 I/ O Control VCOM VEE_D VEE_ DRV VEE_FB NEGATIVE CHARGE PUMP 9.2.1 Design Requirements For this design example, use the parameters listed in Table 2 as the input parameters. Table 2. Design Parameters VOLTAGE SEQUENCE (STROBE) VNEG (LDO2) –15 V 1 VEE (Charge pump 2) –20 V 2 VPOS (LDO1) 15 V 3 VDDH (Charge pump 1) 22 V 4 44 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 9.2.2 Detailed Design Procedure Table 3. Recommended External Components PART NUMBER VALUE SIZE MANUFACTURER LQH44PN4R7MP0 4.7 µH 4 mm × 4 mm × 1.65 mm Murata NR4018T4R7M 4.7 µH 4 mm × 4 mm × 1.8 mm Taiyo Yuden VLS252015ET-2R2M 2.2 µH 2 mm × 2.5 mm × 1.5 mm TDK NR4012T2R2M 2.2 µH 4 mm × 4 mm × 1.2 mm Taiyo Yuden GRM21BC81E475KA12L 4.7 µF, 25 V, X6S 805 Murata GRM32ER71H475KA88L 4.7 µF, 50 V, X7R 1210 Murata X5R or better — — BAS3010 — SOD-323 Infineon MBR130T1 — SOD-123 ON-Semi BAV99 — SOT-23 Fairchild 10 kΩ 603 Murata INDUCTORS CAPACITORS All other capacitors DIODES THERMISTOR NCP18XH103F03RB 100 100 90 90 80 80 70 70 60 V IN= 3. 5 50 V IN= 5V Efficiency [%] Efficiency [%] 9.2.3 Application Curves 40 60 VIN= 3. 5 50 VIN= 5V 40 30 30 20 20 10 10 0 0 0 25 50 75 100 125 150 0 175 25 50 T = 25°C 100 125 150 175 T = 25°C Figure 29. VN DCDC Efficiency Figure 30. VB DCDC Efficiency 100 100 90 90 VIN=5V VIN=5V 80 80 VIN=3.5V VIN=3. 5 70 Efficiency [%] 70 Efficiency [%] 75 Output Current [m A] Output Current [m A] 60 50 40 60 50 40 30 30 20 20 10 10 0 0 0 2 4 6 8 10 12 0 Output Current [mA] 2 4 6 8 10 12 Output Current [mA] T = 25°C T = 25°C Figure 31. VEE Charge Pump Efficiency Figure 32. VDDH Charge Pump Efficiency Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 45 TPS65186 SLVSB04A – JULY 2011 – REVISED AUGUST 2015 www.ti.com 10 Power Supply Recommendations The device is designed to operate with an input voltage supply range from 3 V to 6 V. This input supply can be from an externally regulated supply. If the input supply is located more than a few inches from the TPS65186, additional bulk capacitance may be required in addition to the ceramic bypass capacitors. An electrolytic capacitor with a value of 10 µF is a typical choice. 11 Layout 11.1 Layout Guidelines 1. PBKG (Die substrate) must connect to VN (–16 V) with short, wide trace. Wide copper trace will improve heat dissipation. 2. PowerPad is internally connected to PBKG and must not be connected to ground, but connected to VN with a short wide copper trace. 3. Inductor traces must be kept on the PCB top layer free of any vias. 4. Feedback traces must be routed away from any potential noise source to avoid coupling. 5. Output caps must be placed immediately at output pin. 6. Vin pins must be bypassed to ground with low ESR ceramic bypass capacitors. 11.2 Layout Example Figure 33. Layout Diagram 46 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 TPS65186 www.ti.com SLVSB04A – JULY 2011 – REVISED AUGUST 2015 12 Device and Documentation Support 12.1 Device Support 12.1.1 Third-Party Products Disclaimer TI'S PUBLICATION OF INFORMATION REGARDING THIRD-PARTY PRODUCTS OR SERVICES DOES NOT CONSTITUTE AN ENDORSEMENT REGARDING THE SUITABILITY OF SUCH PRODUCTS OR SERVICES OR A WARRANTY, REPRESENTATION OR ENDORSEMENT OF SUCH PRODUCTS OR SERVICES, EITHER ALONE OR IN COMBINATION WITH ANY TI PRODUCT OR SERVICE. 12.2 Community Resources The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers. Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support. 12.3 Trademarks OMAP, E2E are trademarks of Texas Instruments. Vizplex is a trademark of E Ink Corporation. E Ink is a registered trademark of E Ink Corporation. EPSON is a registered trademark of Seiko Epson Corporation. 12.4 Electrostatic Discharge Caution These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 12.5 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 13 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated Product Folder Links: TPS65186 47 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) TPS65186RGZR ACTIVE VQFN RGZ 48 2500 RoHS & Green NIPDAU Level-3-260C-168 HR -40 to 85 TPS65186 TPS65186RGZT ACTIVE VQFN RGZ 48 250 RoHS & Green NIPDAU Level-3-260C-168 HR -40 to 85 TPS65186 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of