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TPS65011RGZR

TPS65011RGZR

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    VQFN-48_7X7MM-EP

  • 描述:

    IC BATT MFUNC LI-ION 1CEL 48VQFN

  • 数据手册
  • 价格&库存
TPS65011RGZR 数据手册
Product Folder Sample & Buy Support & Community Tools & Software Technical Documents TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 TPS65011 Power and Battery Management IC For Li-Ion Powered Systems 1 Features • 1 • • • • • • • • • • Linear Charger Management for Single Li-Ion or Li-Polymer Cells Dual Input Ports for Charging and From USB or From Wall Plug, Handles 100-mA / 500-mA USB Requirements Charge Current Programmable Via External Resistor 1-A, 95% Efficient Step-Down Converter for I/O and Peripheral Components (VMAIN) 400-mA, 90% Efficient Step-Down Converter for Processor Core (VCORE) 2x 200-mA LDOs for I/O and Peripheral Components, LDO Enable via Bus Serial Interface Compatible With I2C, Supports 100-kHz, 400-kHz Operation LOW_PWR Pin to Lower or Disable Processor Core Supply Voltage in Deep Sleep Mode 70-µA Quiescent Current 1% Reference Voltage Thermal Shutdown Protection 2 Applications • • • All Single Li-Ion Cell-Operated Products Requiring Multiple Supplies Including: – PDA – Cellular and Smart Phone – Internet Audio Player – Digital Still Camera Digital Radio Player Split Supply DSP and µP Solutions The TPS65011 also has a highly integrated and flexible Li-Ion linear charger and system power management. It offers integrated USB-port and ACadapter supply management with autonomous powersource selection, power FET and current sensor, high accuracy current and voltage regulation, charge status, and charge termination. Device Information(1) PART NUMBER TPS65011 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. Key Graphic MAX(AC,USB,VBAT) AC VBAT USB PG Linear Charge Controller ISET TS SCLK SDAT AGND2 Serial Interface IFLSB Thermal Shutdown VINMAIN PS_SEQ LOW_PWR PB_ONOFF BATT_COVER HOT_RESET TPOR VMAIN Control Step-Down Converter RESPWRON MPU_RESET VCC AGND3 VINCORE INT PWRFAIL GPIO1 GPIO2 GPIO3 GPIO4 VIB UVLO VREF OSC L2 VCORE VCORE Step-Down Converter The TPS65011 device is an integrated power and battery management IC for applications powered by one Li-Ion or Li-Polymer cell and which require multiple power rails. The TPS65011 provides two highly efficient, 1.25-MHz step-down converters targeted at providing the core voltage and peripheral, I/O rails in a processor-based system. Both stepdown converters enter a low-power mode at light load for maximum efficiency across the widest possible range of load currents. DEFCORE PGND2 GPIOs VINLDO1 VLDO1 200-mA LDO 3 Description L1 VMAIN DEFMAIN PGND1 VLDO1 VFB_LDO1 AGND1 LED2 VINLDO2 VLDO2 VLDO2 200-mA LDO The TPS65011 also integrates two 200-mA LDO voltage regulators, which are enabled via the serial interface. Each LDO operates with an input voltage range between 1.8 V and 6.5 V, allowing them to be supplied from one of the step-down converters or directly from the battery. 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. TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com Table of Contents 1 2 3 4 5 6 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Pin Configuration and Functions ......................... Specifications......................................................... 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 7 1 1 1 2 3 5 Absolute Maximum Ratings ...................................... 5 ESD Ratings.............................................................. 5 Recommended Operating Conditions....................... 5 Thermal Information .................................................. 6 Electrical Characteristics........................................... 6 Battery Charger Electrical Characteristics ................ 9 Serial Interface Timing Requirements..................... 11 Dissipation Ratings ................................................ 11 Typical Characteristics ............................................ 12 Detailed Description ............................................ 17 7.1 Overview ................................................................. 17 7.2 Functional Block Diagram ....................................... 18 7.3 Feature Description................................................. 19 7.4 Device Functional Modes........................................ 27 7.5 Programming........................................................... 35 7.6 Register Maps ......................................................... 40 8 Application and Implementation ........................ 48 8.1 Application Information............................................ 48 8.2 Typical Applications ................................................ 49 8.3 System Examples ................................................... 52 9 Power Supply Recommendations...................... 53 9.1 LDO1 Output Voltage Adjustment........................... 53 10 Layout................................................................... 53 10.1 Layout Guidelines ................................................. 53 10.2 Layout Example .................................................... 54 11 Device and Documentation Support ................. 55 11.1 11.2 11.3 11.4 11.5 Third-Party Products Disclaimer ........................... Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 55 55 55 55 55 12 Mechanical, Packaging, and Orderable Information ........................................................... 55 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision A (January 2005) to Revision B • 2 Page Added Pin Configuration and Functions section, 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 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 5 Pin Configuration and Functions LOW_PWR INT PWRFAIL RESPWRON MPU_RESET HOT_RESET SCLK SDAT IFLSB TPOR GPIO1 GPIO2 36 35 34 33 32 31 30 29 28 27 26 25 RGZ Package 48-Pin VQFN With Exposed Thermal Pad Top View ISET 37 24 VLDO1 TS 38 23 VFB_LDO1 BATT_COVER 39 22 VINLDO1 AC 40 21 AGND1 VBAT_A 41 20 VLDO2 VBAT_B 42 19 VINLDO2 USB 43 18 GPIO3 AGND2 44 17 GPIO4 AGND3 45 16 PGND1_B PGND2 46 15 PGND1_A PB_ONOFF 47 14 PS_SEQ VCORE 48 13 VMAIN 4 5 6 7 8 9 10 L2 VINCORE VCC VINMAIN_A VINMAIN_B L1_A L1_B 12 3 VIB DEFMAIN 2 LED2 PG 11 1 DEFCORE Thermal Pad Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 3 TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com Pin Functions PIN NAME NO. I/O DESCRIPTION Charger input voltage from AC adapter. The AC pin can be left open or can be connected to ground if the charger is not used. CHARGER SECTION AC 40 I AGND2 44 — ISET 37 I External charge current setting resistor connection for use with AC adapter PG 11 O Indicates when a valid power supply is present for the charger (open drain) Thermal Pad Analog ground connection. All analog ground pins are connected internally on the chip. - — Connect the thermal pad to GND TS 38 I Battery temperature sense input USB 43 I Charger input voltage from USB port. The USB pin can be left open or can be connected to ground if the charger is not used. VBAT_A 41 I Sense input for the battery voltage. Connect directly with the battery. VBAT_B 42 O Power output of the battery charger. Connect directly with the battery. — Analog ground connection. All analog ground pins are connected internally on the chip. — Switch pin of VMAIN converter. The VMAIN inductor is connected here. — Switch pin of VCORE converter. The VCORE inductor is connected here. — Power ground for VMAIN converter Power ground for VCORE converter SWITCHING REGULATOR SECTION AGND3 45 L1_A 9 L1_B 10 L2 4 PGND1_A 15 PGND1_B 16 PGND2 46 — VCC 6 I Power supply for digital and analog circuitry of MAIN and CORE DC-DC converters. This must be connected to the same voltage supply as VINCORE and VINMAIN. Also supplies serial interface block VCORE 48 I VCORE feedback voltage sense input, connect directly to VCORE VINCORE 5 I Input voltage for VCORE step-down converter. This must be connected to the same voltage supply as VINMAIN and VCC. VINMAIN_A 7 VINMAIN_B 8 I Input voltage for VMAIN step-down converter. This must be connected to the same voltage supply as VINCORE and VCC. VMAIN 13 I VMAIN feedback voltage sense input, connect directly to VMAIN LDO REGULATOR SECTION AGND1 21 — VFB_LDO1 23 I Analog ground connection. All analog ground pins are connected internally on the chip. Feedback input from external resistive divider for LDO1 VINLDO1 22 I Input voltage for LDO1 VINLDO2 19 I Input voltage for LDO2 VLDO1 24 O Output voltage for LDO1 VLDO2 20 O Output and feedback voltage for LDO2 LED2 2 O LED driver, with blink rate programmable via serial interface VIB 3 O Vibrator driver, enabled via serial interface DRIVER SECTION CONTROL AND I2C SECTION BATT_COVER 39 I Indicates if battery cover is in place DEFCORE 1 I Input signal indicating default VCORE voltage, 0 = 1.3 V, 1 = 1.6 V DEFMAIN 12 I Input signal indicating default VMAIN voltage, 0 = 1.8 V, 1 = 3.3 V GPIO1 26 I/O General-purpose open-drain input/output GPIO2 25 I/O General-purpose open-drain input/output GPIO3 18 I/O General-purpose open-drain input/output GPIO4 17 I/O General-purpose open-drain input/output HOT_RESET 31 I 4 Push-button reset input used to reboot or wakeup processor via TPS65013 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 Pin Functions (continued) PIN NAME I/O NO. DESCRIPTION IFLSB 28 I LSB of serial interface address used to distinguish two devices with the same address INT 35 O Indicates a charge fault or termination, or if any of the regulator outputs are below the lower tolerance level, active low (open drain) LOW_PWR 36 I Input signal indicating deep-sleep mode, VCORE is lowered to predefined value or disabled MPU_RESET 32 O Open-drain reset output generated by user activated HOT_RESET PB_ONOFF 47 I Push-button enable pin, also used to wakeup processor from low-power mode PS_SEQ 14 I Sets power-up/down sequence of step-down converters PWRFAIL 34 O Open-drain output. Active low when UVLO comparator indicates low VBAT condition or when shutdown is about to occur due to an overtemperature condition or when the battery cover is removed (BATT_COVER has gone low). RESPWRON 33 O Open-drain system reset output, generated according to the state of the VMAIN output voltage. If the main output is disabled, RESPWRON is active (i.e., low). SCLK 30 I Serial interface clock line SDAT 29 I/O TPOR 27 I Serial interface data/address Sets the reset delay time at RESPWRON. TPOR = 0: Tn(RESPWRON) = 100 ms. TPOR = 1: Tn(RESPWRON) = 1 s. 6 Specifications 6.1 Absolute Maximum Ratings over operating free-air temperature range unless otherwise noted (1) MIN Input voltage on VAC pin with respect to AGND Input voltage range on all other pins except AGND/PGND pins with respect to AGND -0.3 MAX UNIT 20 V 7 V 1 kV Current at AC, VBAT, VINMAIN, L1, PGND1 1800 mA Peak current at all other pins 1000 mA Continuous power dissipation See Dissipation Ratings Operating free-air temperature, TA -40 HBM and CDM capabilities at pins VIB, PG, and LED2 Maximum junction temperature, TJ Storage temperature range, Tstg (1) -65 85 °C 125 °C 150 °C 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. 6.2 ESD Ratings Human body model (HBM), per ANSI/ESDA/JEDEC JS-001 V(ESD) (1) (2) Electrostatic discharge (1) Charged device model (CDM), per JEDEC specification JESD22C101 (2) VALUE UNIT 1000 V 1000 V 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. 6.3 Recommended Operating Conditions MIN NOM MAX UNIT V(AC) Supply voltage from AC adapter 4.5 5.5 V V(USB) Supply voltage from USB 4.4 5.25 V V(BAT) Voltage at battery charger 2.5 4.2 V Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 5 TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com Recommended Operating Conditions (continued) MIN NOM MAX UNIT VI(MAIN),VI(CORE),VCC Input voltage range step-down converters 2.5 6.0 V VI(LDO1), VI(LDO2) Input voltage range for LDOs 1.8 6.5 V TA Operating ambient temperature -40 85 °C TJ Operating junction temperature -40 125 °C R(CC) Resistor from VI(main),VI(core) to VCC used for filtering, CI(VCC) = 1 µF 100 Ω 10 6.4 Thermal Information TPS65011 THERMAL METRIC (1) RGZ (VQFN) UNIT 48 PIN RθJA Junction-to-ambient thermal resistance 27.0 °C/W RθJC(top) Junction-to-case (top) thermal resistance 14.3 °C/W RθJB Junction-to-board thermal resistance 4.6 °C/W ψJT Junction-to-top characterization parameter 0.2 °C/W ψJB Junction-to-board characterization parameter 4.6 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance 1.1 °C/W (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. 6.5 Electrical Characteristics VI(MAIN) = VI(CORE) = VCC = VI(LDO1) = VI(LDO2) = 3.6 V, TA = -40°C to 85°C, typical values are at TA = 25°C battery charger specifications are valid in the range 0°C V(DO-MAX), I2C register CHGCONFIG = 0 80 100 mA V(CHG)min ≥ 4.5 V, VI(BAT) > V(LOWV), VUSB - VI(BAT) > V(DO-MAX), I2C register CHGCONFIG = 1 400 500 mA 825 8250 Ω Resistor range at ISET pin PRECHARGE CURRENT REGULATION, SHORT-CIRCUIT CURRENT, AND BATTERY DETECTION CURRENT V(LOWV) Precharge to fast-charge transition threshold, voltage on VBAT pin. V(CHG)min ≥ 4.5V 2.8 3.0 3.2 V De-glitch time V(CHG)min ≥ 4.5 V, VI(OUT) decreasing below threshold; 100-ns fall time, 10mV overdrive 8.8 23 60 ms 0 ≤ VI(OUT) < V(LOWV), t < t(PRECHG) 10 100 mA 270 mV (2) I(PRECHG) Precharge current I(DETECT) Battery detection current V(SET-PRECHG) Voltage at ISET pin IO(AC) = 0 ≤ VI(OUT) < V(LOWV), t < t(PRECHG) 240 255 µA KSET ´ V(SET) (1) I(PRECHG) = (2) 200 R(ISET) KSET ´ V(SET _ PRECHG) R(ISET) Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 9 TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com Battery Charger Electrical Characteristics (continued) VO(REG) + V(DO-MAX)≤ V(CHG) = V(AC) or V(USB), I(TERM) V(RCH), t < t(TAPER) 10 V(SET_TAPER) Voltage at ISET pin for charge TAPER detection VI(OUT) > V(RCH), t < t(TAPER) 235 250 265 mV V(SET_TERM) Voltage at ISET pin for charger termination detection (4) VI(OUT) > V(RCH) 11 18 25 mV De-glitch time for I(TAPER) V(CHG)min ≥ 4.5V, charging current increasing or decreasing above and below; 100-ns fall time, 10-mV overdrive 8.8 23 60 ms De-glitch time for I(TERM) V(CHG)min ≥ 4.5 V, charging current decreasing below;100-ns fall time, 10-mV overdrive 8.8 23 60 ms 2.50 2.525 TEMPERATURE COMPARATOR V(LTF) Low (cold) temperature threshold 2.475 V V(HTF) High (hot) temperature threshold 0.485 0.5 0.515 V I(TS) TS current source 95 102 110 µA De-glitch time for temperature fault 8.8 23 60 ms VO(REG) 0.115 VO(REG) 0.1 VO(REG) 0.085 8.8 23 60 BATTERY RECHARGE THRESHOLD V(RCH) Recharge threshold V(CHG)min≥ 4.5 V V De-glitch time V(CHG)min ≥ 4.5 V, VI(OUT) decreasing below threshold; 100-ns fall time, 10-mV overdrive t(PRECHG) Precharge timer V(CHG)min ≥ 4.5 V 1500 1800 2160 s t(TAPER) Taper timer V(CHG)min≥ 4.5 V 1500 1800 2160 s t(CHG) Charge timer V(CHG)min≥ 4.5 V 15000 18000 21600 s V(CHG)≤ VI(OUT) +150 mV V ms TIMERS SLEEP AND STANDBY V(SLP-ENTRY) Sleep-mode entry threshold, PG output = high 2.3 V≤ VI(OUT) ≤ VO(REG) V(SLP_EXIT) Sleep-mode exit threshold,PG output = low 2.3 V≤ VI(OUT)≤ VO(REG) De-glitch time for sleep mode entry and exit AC or USB decreasing below threshold; 100-ns fall time, 10-mV overdrive V(CHG)≥ VI(OUT)+19 0 mV 8.8 Delay between valid USB voltage being applied and start of charging process from USB t(USB_DEL) V 23 60 5 ms ms CHARGER POWER-ON-RESET, UVLO, AND V(IN) RAMP RATE V(CHGUVLO) Charger undervoltage lockout V(CHG) decreasing Hysteresis V(CHGOVLO) 2.27 2.5 2.75 27 Charger overvoltage lockout V(AC) increasing 6.6 Hysteresis V mV V 0.5 V CHARGER OVERTEMPERATURE SUSPEND T(suspend) Temperature at which charger suspends operation T(hyst) Hysteresis of suspend threshold 145 °C 20 °C LOGIC SIGNALS DEFMAIN, DEFCORE, PS_SEQ, IFLSB I(TAPER) = (3) I(TERM) = (4) 10 KSET ´ V(SET _ TAPER) R(ISET) KSET ´ V(SET _ TERM) R(ISET) Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 Battery Charger Electrical Characteristics (continued) VO(REG) + V(DO-MAX)≤ V(CHG) = V(AC) or V(USB), I(TERM) UVOL, TjUVLO ? BATT_COVER High ? UVLO_TEMP Timer Done ? No VCC>UVLO ? BATT_COVER High ? Release RESPWRON, PWRFAIL, INT, MPU_RESET Yes Yes Value PS_SEQ ? 1 0 Shutdown VCORE, VMAIN + LDOs According to PS_SEQ Yes Boot VCORE Converter + LDOs Boot VMAIN Converter + LDOs Boot VCORE Converter Boot VCORE Converter LOW_PWR De-asserted, PB_ONOFF Button Pressed Processor Initiated Shutdown ∗3 LOW_ POWER Mode LOW_PWR Asserted ∗2 ON HOT_RESET Button Pressed ∗1: All registers are reset to their default values in WAIT Mode ∗2: ENABLE_LP bit, VDCDC1 Must be set. If AC or USB power is present, AUA bit, CHGCONFIG must also be set. Raise the low power pin to enter low power mode. ∗3: ENABLE_SUPPLY bit, VDCDC1 must be cleared. ENABLE_LP bit, VDCDC1 must be set. LDO2OFF/SLP and LDO1OFF/SLP must be set or LDOs and voltage reference remain enabled and registers not reset. If AC or USB power is present, AUA bit, CHGCONFIG must also be set. Raise the low power pin to enter low power mode. ENABLE_LP default: cleared ENABLE_SUPPLY default: set AUA default: cleared LDO1OFF/SLP default: cleared LDO2OFF/SLP default: cleared No Release MPU_RESET VCORE Voltage Good ? Yes Yes MPU_RESET Timer Done ? Set MPU_RESET Low, Start MPU_RESET Timer No Figure 29. TPS65011 Power-On State Diagram 7.3.6 System Reset and Control Signals The RESPWRON signal is used as a global reset for the application. It is an open drain output. The RESPWRON signal is generated according to the Power Good comparator linked to VMAIN and remains low for tn(RESPWRON) seconds after VMAIN has stabilized. When RESPWRON is low, PWRFAIL, MPU_RESET and INT are also held low. 26 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 If the output voltage of MAIN is less than 90% of its nominal value, as RESPWRON is generated, and if the output voltage of MAIN is programmed to a higher value, which causes the output voltage to fall out of the 90% window, then a RESPWRON signal is generated. The PWRFAIL signal indicates when VCC < UVLO or when the TPS65011 junction temperature has exceeded a reliable value or if BATT_COVER is taken low. This open drain output can be connected at a fast interrupt pin for immediate attention by the application processor. All supplies are disabled t(uvlo), t(overtemp) or t(batt_cover) seconds after PWRFAIL has gone low, giving time for the application processor to shut down cleanly. BATT_COVER is used to detect whether the battery cover is in place or not. If the battery cover is removed, the TPS65011 generates a warning to the processor that the battery is likely to be removed and that it may be prudent to shut down the system. If not required, this feature may be disabled by connecting the BATT_COVER pin to the VCC pin. BATT_COVER is de-bounced internally. Typical de-bounce time is 56 ms. BATT_COVER has an internal 2-MΩ pulldown resistor. The HOT_RESET input is used to generate an MPU_RESET signal for the application processor. The HOT_RESET pin could be connected to a user-activated button in the application. It can also be used to exit lowpower mode. In this case, the TPS65011 waits until the VCORE voltage has stabilized before generating the MPU_RESET pulse. The MPU_RESET pulse is active low for t(mpu_nreset) seconds. HOT_RESET has an internal 1-MΩ pullup resistor to VCC. The PB_ONOFF input can be used to exit low-power MODE. It is typically driven by a user-activated push-button in the application. Both HOT_RESET and PB_ONOFF are de-bounced internally by the TPS65011. Typical debounce time is 56 ms. PB_ONOFF has an internal 1-MΩ pulldown resistor. PB_ONOFF, BATT_COVER and UVLO events also cause a normal, maskable interrupt to be generated and are noted in the REGSTATUS register. 7.3.7 Vibrator Driver The VIB open-drain output is provided to drive a vibrator motor, controlled via the serial interface register VDCDC2. It has a maximum dropout of 0.5 V at 100-mA load. Typically, an external resistor is required to limit the motor current, and a freewheel diode to limit the VIB overshoot voltage at turnoff. 7.4 Device Functional Modes 7.4.1 TPS65011 Power States Description 7.4.1.1 State 1: No Power No batteries are connected to the TPS65011. When main power is applied, the bandgap reference, LDOs, and UVLO comparator start up. The RESPWRON, PWRFAIL, INT and MPU_RESET signals are held low. When BATT_COVER goes high (de-bounced internally by the TPS65011), indicating that the battery cover has been put in place and if VCC > UVLO, the power supplies are ramped in the sequence defined by PS_SEQ. RESPWRON, PWRFAIL, INT and MPU_RESET are released when the RESPWRON timer has timed out after tn(RESPWRON) sec. If VCC remains valid and no OVERTEMP condition occurs, then the TPS65011 arrives in State 2: ON. If VCC < UVLO, the TPS65011 keeps the bandgap reference and UVLO comparator active such that when VCC>UVLO (during battery charge) the supplies are automatically activated. 7.4.1.2 State 2: ON In this state, TPS65011 is fired up and ready to go. The switching converters can have their output voltages programmed. The LDOs can be disabled or programmed. TPS65011 can exit this state either due to an overtemperature condition, by an undervoltage condition at VCC, by BATT_COVER going low, or by the processor programming low-power mode. State 2 is left temporarily if the user activates the HOT_RESET pin. 7.4.1.3 State 3: Low-Power Mode This state is entered via the processor setting the ENABLE_LP bit in the serial interface and then raising the LOW_PWR pin. The TPS65011 actually uses the rising edge of the internal signal formed by a logical AND of the LOW_PWR and ENABLE LP signals to enter low-power mode. The VMAIN switching converter remains active, but the VCORE converter may be disabled in low-power mode via the serial interface by setting the LP_COREOFF bit in the VDCDC2 register. If left enabled, the VCORE voltage is set to the value predefined by the CORELP0/1 bits in the VDCDC2 register. The LDO1OFF/nSLP and LDO2OFF/nSLP bits in the VREGS1 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 27 TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com Device Functional Modes (continued) register determine whether the LDOs are turned off or put in a reduced power mode (transient speed-up circuitry disabled in order to minimize quiescent current) in low-power mode. All TPS65011 features remain addressable via the serial interface. TPS65011 can exit this state either due to an undervoltage condition at VCC, due to BATT_COVER going low, due to an OVERTEMP condition, by the processor deasserting the LOW_POWER pin, or by the user activating the HOT_RESET pin or the PB_ONOFF pin. 7.4.1.4 State 4: Shutdown There are two scenarios for entering this state. The first is from State 1: No Power. As soon as main battery power is applied, the device automatically enters the WAIT mode. The second scenario occurs when the device is in ON mode and the processor initiates a shutdown by resetting the ENABLE SUPPLY bit in the VDCDC1 register (ENABLE_LP must be high), and then raising the LOW_PWR pin. When this happens, the power rails are ramped down in the predefined sequence, and all circuitry is then disabled. In this state, the TPS65011 waits for the PB_ONOFF or HOT_RESET pin to be activated before enabling any of the supply rails. When the PB_ONOFF or HOT_RESET pin is activated, the TPS65011 powers up the supplies according to the same constraints as at the initial application of power. Complete shutdown is only achieved by setting the LDO1OFF/nSLP and LDO2OFF/nSLP bits high in the VREGS1 register before activating the shutdown. In this case, the I2C interface is deactivated and the registers are reset to their default value after leaving the WAIT mode. To enter the WAIT mode when USB or AC is present, the AUA bit (CHCONFIG) must be set. The WAIT mode is automatically left if Bit 7 in register CHCONFIG is set to 0 (default), and a voltage is present at either the AC pin or the USB pin in the appropriate range for charging, and the voltage at VCC is above the UVLO threshold. This feature allows the converters to start up automatically if the device is plugged in for charging. If all supplies are turned off in WAIT mode, the internal bandgap is switched off, and the internal registers are reset to their default state when the device returns to ON mode. Table 3 shows possible configurations in LOW-POWER mode and WAIT mode. Table 3. TPS65011 Possible Configurations • • CONVERTER MAIN CORE LDO1 LDO2 LOW POWER mode 1 0/1 0/1 0/1 WAIT mode 0 0 0/1 0/1 0 = converter is disabled 1 = converter is enabled Table 4 indicates the typical quiescent current consumption in each power state. Table 4. TPS65011 Typical Current Consumption STATE 28 TOTAL QUIESCENT CURRENT QUIESCENT CURRENT BREAKDOWN 1 0 2 30 µA-70 µA VMAIN (12 µA) + VCORE (12 µA) + LDOs (20 µA each, max 2) + UVLO + reference + PowerGood 3 30 µA-55 µA VMAIN (12 µA) + VCORE (12 µA) + LDOs (10 µA each, max 2) + UVLO + reference + PowerGood 4 13 µA UVLO + reference circuitry Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 VCC BATT COVER BATT COVER DEG* t(GLITCH) PB_ONOFF REFSYS EN* t(GLITCH) UVLO* ENABLE SUPPLIES* VCORE 98% VCORE VMAIN 95% VMAIN VLDO1 VLDO2 RESPWRON MPU_RESET PWREFAIL INT tn(RESPWRON) *.... internal signal Figure 30. State 1 to State 2 Transition (PS_SEQ=0, VCC > VUVLO + HYST) Valid for LDO1 supplied from VMAIN as described in Application Information. If 2.4 ms after application, VCC is still below the default UVLO threshold (3.15 V for VCC rising), then start up is as shown in Figure 31. Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 29 TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com AC (or USB) VCC UVLO Threshold BATT COVER t(GLITCH) BAT COVER DEG * REFSYS EN* UVLO* ENABLE SUPPLIES* VCORE 98% VCORE VMAIN 95% VMAIN VLDO1 VLDO2 RESPWRON MPU_RESET PWRFAIL INT tn(RESPWRON) *.... internal signal Figure 31. State1-State4-State 2 Transition (Power Up Behavior When Charge Voltage is Applied) Valid for LDO1 supplied from VMAIN as described in Application Information. 30 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 VCC UVLO Threshold With 400 mV Hysteresis UVLO* PWPFAIL INT tUVLO ENABLE SUPPLIES* VCORE VMAIN VMAIN ~0.8 V VLDO1 VLDO2 RESPWRON MPU_RESET * ... internal signal Figure 32. State2-State4 Transition Valid for LDO1 supplied from VMAIN as described in Application Information. Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 31 TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com ENABLE LOW_POWER LDO2 OFF/SLP LOW_POWER VMAIN VCORE 95% VCORE VLDO1 VLDO2 95% VLDO2 INT Figure 33. State 2 to State 3 Transition. VCORE Lowered, LDO2 Disabled. Subsequent State 3 to State 2 Transition When LOW-POWER Is De-Asserted. 32 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 PB_ONOFF PB_ONOFF DEGLITCH tGLITCH VCORE VMAIN VLDO1 VLDO2 INT Figure 34. State 3 to State 2 Transition. PB_ONFF Activated (See Interrupt Management for INT Behavior) Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 33 TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com HOT_RESET HOT_RESET DEGLITCH VCORE t(GLITCH) 95% VCORE VMAIN VLDO1 VLDO2 95% VLDO2 INT MPU_RESET t(MPU_RESET) Figure 35. State 3 to State 2 Transition (HOT_RESET Activated, See Interrupt Management for INT Behavior) 34 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 ENABLE LOW POWER* LDO1 OFF/SLP* LDO2 OFF/SLP* MAIN DISCHARGE* ENABLE SUPPLY* LOW POWER VMAIN VMAIN < ca 0.8 V VCORE VCORE < ca 0.4 V VLDO1 VLDO2 RESPWRON MPU_RESET PWRFAIL INT REFSYS ENABLE* * ... internal signal Figure 36. State 1 to State 4 Transition 7.5 Programming 7.5.1 LED2 Output The LED2 output can be programmed in the same way as the PG output to blink or to be permanently on or off. The LED2_ON and LED2_PER registers are used to control the blink rate. For both PG and LED2, the minimum blink-on time is 10 ms and this can be increased in 127 10-ms steps to 1280 ms. For both PG and LED2, the minimum blink period is 100 ms and this can be increased in 127 100-ms steps to 12800 ms. Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 35 TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com Programming (continued) 7.5.2 Interrupt Management The open-drain INT pin is used to combine and report all possible conditions via a single pin. Battery and chip temperature faults, precharge timeout, charge timeout, taper timeout, and termination current are each capable of setting INT low, i.e., active. INT can also be activated if any of the regulators are below the regulation threshold. Interrupts can also be generated by any of the GPIO pins programmed to be inputs. These inputs can be programmed to generate an interrupt either at the rising or falling edge of the input signal. It is possible to mask an interrupt from any of these conditions individually by setting the appropriate bits in the MASK1, MASK2, or MASK3 registers. By default, all interrupts are masked. Interrupts are stored in the CHGSTATUS, REGSTATUS, and DEFGPIO registers in the serial interface. CHGSTATUS and REGSTATUS interrupts are acknowledged by reading these registers. If a 1 is present in any location, then the TPS65011 automatically sets the corresponding bit in the ACKINT1 or ACKINT2 registers and releases the INT pin. The ACKINT register contents are self-clearing when the condition, which caused the interrupt, is removed. The applications processor should not normally need to access the ACKINT1 or ACKINT2 registers. Interrupt events are always captured; thus when an interrupt source is unmasked, INT may immediately go active due to a previous interrupt condition. This can be prevented by first reading the relevant STATUS register before unmasking the interrupt source. If an interrupt condition occurs, then the INT pin is set low. The CHGSTATUS, REGSTATUS, and DEFGPIO registers should be read. Bit positions containing a 1 (or possibly a 0 in DEFGPIO) are noted by the CPU and the corresponding situation resolved. The reading of the CHGSTATUS and REGSTATUS registers automatically acknowledges any interrupt condition in those registers and blocks the path to the INT pin from the relevant bit(s). No interrupt should be missed during the read process since this process starts by latching the contents of the register before shifting them out at SDAT. Once the contents have been latched (takes a couple of nanoseconds), the register is free to capture new interrupt conditions. Hence, the probability of missing anything is, for practical purposes, zero. The following describes how registers 0x01 (CHGSTATUS) and 0x02 (REGSTATUS) are handled: • CHGSTATUS(5,0) are positive edge set. Read of set CHGSTATUS(5,0) bits sets ACKINT1(5,0) bits. • CHGSTATUS(7-6,4-1) are level set. Read of set CHGSTATUS(7-6,4-1) bits sets ACKINT1(7-6,4-1) bits. • CHGSTATUS(5,0) clear when input signal low, and ACKINT1(5,0) bits are already set. • CHGSTATUS(7-6,4-1) clear when input signal is low. • ACKINT1(7-0) clear when CHGSTATUS(7-0) is clear. • REGSTATUS(7-5) are positive edge set. Read of set REGSTATUS(7-5) bits sets ACKINT2(7-5) bits. • REGSTATUS(3-0) are level set. Read of set REGSTATUS(3-0) bits sets ACKINT2(3-0) bits. • REGSTATUS(7-5) clear when input signal low, and ACKINT1(7-5) bit are already set. • REGSTATUS(3-0) clear when input signal is low. • ACKINT2(7-0) clear when REGSTATUS(7-0) is clear. The following describes the function of the 0x05 (ACKINT1) and 0x06 (ACKINT2) registers. These are not usually written to by the CPU since the TPS65011 internally sets/clears these registers: • ACKINT1(7:0) - Bit is set when the corresponding CHGSTATUS set bit is read via I2C. • ACKINT1(7:0) - Bit is cleared when the corresponding CHGSTATUS set bit clears. • ACKINT2(7:0) - Bit is set when the corresponding REGSTATUS set bit is read via I2C. • ACKINT2(7:0) - Bit is cleared when the corresponding REGSTATUS set bit clears. • ACKINT1(7:0) - a bit set masks the corresponding CHGSTATUS bit from INT. • ACKINT2(7:0) - a bit set masks the corresponding REGSTATUS bit from INT. The following describes the function of the 0x03 (MASK1), 0x04 (MASK2) and 0x0F (MASK3) registers: • MASK1(7:0) - a bit set in this register masks CHGSTATUS from INT. • MASK2(7:0) - a bit set in this register masks REGSTATUS from INT. • MASK3(7:4) - a bit set in this register detects a rising edge on GPIO. • MASK3(7:4) - a bit cleared in this register detects a falling edge on GPIO. • MASK3(3:0) - a bit set in this register clears GPIO Detect signal from INT. 36 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 Programming (continued) GPIO interrupts are located by reading the 0x10 (DEFGPIO) register. The application CPU stores, or can read from DEFGPIO, which GPIO is set to input or output. This information together with the information on which edge the interrupt was generated (the CPU either knows this or can read it from MASK3) determines whether the CPU is looking for a 0 or a 1 in DEFGPIO. A GPIO interrupt is blocked from the INT pin by setting the relevant MASK3 bit; this must be done by the CPU, there is no auto-acknowledge for the GPIO interrupts. 7.5.3 Serial Interface The serial interface is compatible with the standard and fast mode I2C specifications, allowing transfers at up to 400 kHz. The interface adds flexibility to the power supply solution, enabling most functions to be programmed to new values depending on the instantaneous application requirements and charger status to be monitored. Register contents remain intact as long as VCC remains above 2 V. The TPS65011 has a 7-bit address with the LSB set by the IFLSB pin, this allows the connection of two devices with the same address to the same bus. The 6 MSBs are 100100. Attempting to read data from register addresses not listed in this section results in FFh being read out. For normal data transfer, DATA is allowed to change only when CLK is low. Changes when CLK is high are reserved for indicating the start and stop conditions. During data transfer, the data line must remain stable whenever the clock line is high. There is one clock pulse per bit of data. Each data transfer is initiated with a start condition and terminated with a stop condition. When addressed, the TPS65011 device generates an acknowledge bit after the reception of each byte. The master device (microprocessor) must generate an extra clock pulse that is associated with the acknowledge bit. The TPS65011 device must pull down the DATA line during the acknowledge clock pulse so that the DATA line is a stable low during the high period of the acknowledge clock pulse. The DATA line is a stable low during the high period of the acknowledge-related clock pulse. Setup and hold times must be taken into account. During read operations, a master must signal the end of data to the slave by not generating an acknowledge bit on the last byte that was clocked out of the slave. In this case, the slave TPS65011 device must leave the data line high to enable the master to generate the stop condition. The I2C interface accepts data as soon as the voltage at VCC is higher than the undervoltage lockout threshold and one power rail of the converter (main, core, or one of the LDOs) is operating. Therefore, the I2C interface is not operating after applying the battery voltage as the device automatically enters the WAIT mode with all rails off. When the device is in WAIT mode, the I2C registers are reset to their default values if all voltage rails are off. If the device is in WAIT mode and one power rail is left on, the I2C interface is operating and the registers are not reset after leaving the WAIT mode. DATA CLK Data Line Stable Data Valid Change of Data Allowed Figure 37. Bit Transfer on the Serial Interface Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 37 TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com Programming (continued) CE DATA CLK S P START Condition STOP Condition Figure 38. START and STOP Conditions ... SCLK A6 SDAT A5 ... A4 ... A0 R/W ACK 0 R7 R6 ... R0 R5 ACK 0 D7 D6 ... D0 D5 ACK 0 Slave Address Start ... 0 Register Address Data Stop NOTE: SLAVE = TPS65011 Figure 39. Serial Interface WRITE to TPS65011 Device ... SCLK A6 SDAT .. ... A0 R/W ACK 0 0 R7 R0 ACK A6 .. ... A0 0 Register Address Slave Address Start .. ... R/W ACK 1 0 .. D7 D0 Slave Drives The Data Slave Address ACK Master Stop Drives ACK and Stop NOTE: SLAVE = TPS65011 Figure 40. Serial Interface READ From TPS65011: Protocol A ... SCLK SDAT A6 Start .. ... A0 R/W ACK 0 0 Slave Address R7 .. .. R0 Register Address ACK 0 ... A6 Stop Start .. A0 R/W 1 Slave Address ACK 0 D7 .. D0 Slave Drives The Data ACK Master Stop Drives ACK and Stop NOTE: SLAVE = TPS65011 Figure 41. Serial Interface READ From TPS65011: Protocol B 38 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 Programming (continued) DATA t(BUF) th(STA) t(LOW) tr tf CLK th(STA) STO STA t(HIGH) th(DATA) tsu(STA) tsu(STO) tsu(DATA) STA STO Figure 42. Serial Interface Timing Diagram Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 39 TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com 7.6 Register Maps 7.6.1 CHGSTATUS Register (Address: 01h—Reset: 00h) CHGSTATUS B7 B6 B5 B4 B3 B2 B1 B0 Name USB charge AC charge Thermal Suspend Term Current Taper Timeout Chg Timeout Prechg Timeout BattTemp error Default 0 0 0 0 0 0 0 0 Read/write R R R R R/W R/W R/W R The CHGSTATUS register contents indicate the status of charge. Bit 7 - USB charge: • 0 = inactive. • 1 = USB source is present and in the range valid for charging. B7 remains active as long as the charge source is present. Bit 6 - AC charge: • 0 = wall plug source is not present and/or not in the range valid for charging. • 1 = wall plug source is present and in the range valid for charging. B6 remains active as long as the charge source is present. Bit 5 - Thermal suspend: • 0 = charging is allowed • 1 = charging is momentarily suspended due to excessive power dissipation on chip. Bit 4 - Term current: • 0 = charging, charge termination current threshold has not been crossed. • 1 = charge termination current threshold has been crossed and charging has been stopped. This can be due to a battery reaching full capacity, or to a battery removal condition. Bit • • • • 3 - 1 Prechg Timeout, Chg Timeout, Taper Timeout: If CHCONFIG=0: Bit3 equals the output of the taper voltage comparator directly, without any timer delay. If CHCONFIG=1: there is a delay of 30 minutes because the timers have to time out first. 0 = charging, timers did not time out 1 = one of the timers has timed out and charging has been terminated. Bit 0 - BattTemp error: Battery temperature error • 0 = battery temperature is inside the allowed range and that charging is allowed. • 1 = battery temperature is outside of the allowed range and that charging is suspended. B1-4 may be reset via the serial interface in order to force a reset of the charger. Any attempt to write to B0 and B5-7 is ignored. A 1 in B sets the INT pin active unless the corresponding bit in the MASK register is set. 7.6.2 REGSTATUS Register (Address: 02h—Reset: 00h) REGSTATUS Bit name B7 PB_ONOFF B6 B5 BATT_COVER B4 UVLO B3 B2 B1 B0 PGOOD LDO2 PGOOD LDO1 PGOOD MAIN PGOOD CORE Default 0 0 0 0 0 0 0 0 Read/write R R R R R R R R Bit 7 - PB_ONOFF: • 0 = inactive • 1 = user activated the PB_ONOFF switch to request that all rails are shut down. Bit 6 - BATT_COVER: • 0 = BATT_COVER pin is high. • 1 = BATT_COVER pin is low. 40 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 Bit 5 - UVLO: • 0 = voltage at the VCC pin above UVLO threshold. • 1 = voltage at the VCC pin has dropped below the UVLO threshold. Bit 4 - not implemented Bit 3 - PGOOD LDO2: • 0 = LDO2 output in regulation, or LDO2 disabled with VREGS1 < 7 > = 0 • 1 = LDO2 output out of regulation. Bit 2 - PGOOD LDO1: • 0 = LDO1 output in regulation, or LDO1 disabled with VREGS1 < 3 > = 0 • 1 = LDO1 output out of regulation. Bit 1 - PGOOD MAIN: • 0 = Main converter output in regulation. • 1 = Main converter output out of regulation. Bit 0 - PGOOD CORE: • 0 = Core converter output in regulation. • 1 = Core converter output out of regulation, or VDCDC2 < 7 > = 1 in low-power mode A rising edge in the REGSTATUS register contents causes INT to be driven low if it is not masked in the MASK2. 7.6.3 MASK1 Register (Address: 03h—Reset: FFh) MASK1 B7 B6 B5 B4 B3 B2 B1 B0 Bit name Mask USB Mask AC Mask Thermal Suspend Mask Term Mask Taper Mask Chg Mask Prechg Mask BattTemp Default 1 1 1 1 1 1 1 1 Read/write R/W R/W R/W R/W R/W R/W R/W R/W The MASK1 register is used to mask all or any of the conditions in the corresponding CHGSTATUS positions being indicated at the INT pin. Default is to mask all. 7.6.4 MASK2 Register (Address: 04h—Reset: FFh) MASK2 B7 B6 Bit name Mask PB_ONOFF Mask BATT_COVER Read/write B5 B4 Mask UVLO B3 B2 B1 B0 Mask PGOOD LDO2 Mask PGOOD LDO1 Mask PGOOD MAIN Mask PGOOD CORE Default 1 1 1 1 1 1 1 R/W R/W R/W R/W R/W R/W R/W R/W The MASK2 register is used to mask all or any of the conditions in the corresponding REGSTATUS positions being indicated at the INT pin. Default is to mask all. 7.6.5 ACKINT1 Register (Address: 05h—Reset: 00h) ACKINT1 Bit name B7 Ack USB B6 B5 Ack AC Ack Thermal Shutdown B4 Ack Term B3 Ack Taper B2 Ack Chg B1 B0 Ack Prechg Ack BattTemp Default 0 0 0 0 0 0 0 0 Read/write R R R R R R R R The ACKINT1 register is internally used to acknowledge any of the interrupts in the corresponding CHGSTATUS positions. When this is done, the acknowledged interrupt is no longer fed through to the INT pin and so the INT pin becomes free to indicate the next pending interrupt. If none exists, then the INT pin goes high, else it will remain low. A 1 at any position in ACKINT1 is automatically cleared when the corresponding interrupt condition in CHGSTATUS is removed. The application processor should not normally need to access the ACKINT1 register. Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 41 TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com 7.6.6 ACKINT2 Register (Address: 06h—Reset: 00h) ACKINT2 B7 B6 B5 B4 B3 B2 B1 B0 Bit name & function Ack PB_ONOFF Ack BATT_ COVER Ack UVLO Default 0 0 0 0 0 0 0 0 Read/write R R R R R R R R Ack PGOOD Ack PGOOD Ack PGOOD Ack PGOOD LDO2 LDO1 MAIN CORE The ACKINT2 register is internally used to acknowledge any of the interrupts in the corresponding REGSTATUS positions. When this is done, the acknowledged interrupt is no longer fed through to the INT pin and so the INT pin becomes free to indicate the next pending interrupt. If none exists, then the INT pin goes high, else it will remain low. A 1 at any position in ACKINT2 is automatically cleared when the corresponding interrupt condition in REGSTATUS is removed. The application processor should not normally need to access the ACKINT2 register. 7.6.7 CHGCONFIG Register Address: 07h—Reset: 1Bh CHGCONFIG B7 B6 B5 B4 B3 B2 B1 B0 Bit name AUA Charger reset Fast charge timer + taper timer enabled MSB charge current LSB charge current USB / 100 mA 500 mA USB charge allowed Charge enable Default 0 0 0 1 1 0 1 1 Read/write R/W R/W R/W R/W R/W R/W R/W R/W The CHGCONFIG register is used to configure the charger. Bit 7 - AUA: • 0 = If a voltage is present at AC or USB in the appropriate range for charging, and if VCC > UVLO, the TPS65011 is forced into ON mode. The WAIT mode is disabled. • 1 = If a voltage source at AC or USB is present, the WAIT mode is enabled, and the TPS65011 does not automatically turn on the converters. Bit 6 - Charger reset: • Clears all the timers in the charger and forces a restart of the charge algorithm. • 0 / 1 = This bit must be set and then reset via the serial interface. Bit 5 - Fast charge timer + taper timer enabled: • 0 = fast charge timer disabled (default), CHSTATUS < 3 >= status of the taper detect comparator output. • 1 = enables the fast charge timer and taper timer. CHSTATUS < 3 >= status of the taper timer. Bit 4, Bit 3 - MSB/LSB Charge current: • Used to set the constant current in the current regulation phase. B4:B3 CHARGE CURRENT RATE 11 Maximum current set by the external resistor at the ISET pin 10 75% of maximun 01 50% of maximun 00 25% of maximun Bit 2 - USB 100 mA / 500 mA: • 0 = sets the USB charging current to max 100 mA. • 1 = sets the USB charging current to max 500 mA. B2 is ignored if B1 = 0. Bit 1 - USB charge allowed: • 0 = prevents any charging from the USB input. • 1 = charging from the USB input is allowed. Bit 0 - Charge enable: • 0 = charging is not allowed. 42 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com • SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 1 = charger is free to charge from either of the two input sources. If both sources are present and valid, the TPS65011 charges from the AC pin source. 7.6.8 LED1_ON Register (Address: 08h—Reset: 00h) LED1_ON B7 B6 B5 B4 B3 B2 B1 B0 Bit name PG1 LED1 ON6 LED1 ON5 LED1 ON4 LED1 ON3 LED1 ON2 LED1 ON1 LED1 ON 0 Default 0 0 0 0 0 0 0 0 Read/write R/W R/W R/W R/W R/W R/W R/W R/W The LED1_ON and LED1_PER registers can be used to take control of the PG open drain output normally controlled by the charger. Bit 7 - PG1: Control of the PG pin is determined by PG1 and PG2 according to the table under LED1_PER register Bit 6 - BIT 0 - LED1_ON are used to program the on-time of the open drain output transistor at the PG pin. The minimum on-time is typically 10 ms and one LSB corresponds to a 10-ms step change in the on-time. 7.6.9 LED1_PER Register (Address: 09h—Reset: 00h) LED1_PER B7 B6 B5 B4 B3 B2 B1 B0 Bit name PG2 LED1 PER6 LED1 PER5 LED1 PER4 LED1 PER3 LED1 PER2 LED1 PER1 LED1 PER 0 Default 0 0 0 0 0 0 0 0 Read/write R/W R/W R/W R/W R/W R/W R/W R/W Bit 7 - PG2: Control of the PG pin is determined by PG1 and PG2 according to the following table. Default shown in bold. PG1 PG2 BEHAVIOR OF PG OPEN DRAIN OUTPUT 0 0 Under charger control 0 1 Blink 1 0 Off 1 1 Always On Bit 6-Bit 0 - LED1_PER are used to program the time period of the open-drain output transistor at the PG pin. The minimum period is typically 100 ms and one LSB corresponds to a 100-ms step change in the period. 7.6.10 LED2_ON Register (Address: 0Ah—Reset: 00h) LED2_ON B7 B6 B5 B4 B3 B2 B1 B0 Bit name LED21 LED2 ON6 LED2 ON5 LED2 ON4 LED2 ON3 LED2 ON2 LED2 ON1 LED2 ON0 Default 0 0 0 0 0 0 0 0 Read/write R/W R/W R/W R/W R/W R/W R/W R/W The LED2_ON and LED2_PER registers are used to control the LED2 open-drain output. Bit 7 LED22: Control is determined by LED21 and LED22 according to the table under LED2_PER register. Bit 6-Bit 0 - LED2_ON are used to program the on-time of the open drain output transistor at the LED2 pin. The minimum on-time is typically 10 ms and one LSB corresponds to a 10-ms step change in the on-time. 7.6.11 LED2_PER (Register Address: 0Bh—Reset: 00h) LED2_PER B7 B6 B5 B4 B3 B2 B1 B0 Bit name LED22 LED2 PER6 LED2 PER5 LED2 PER4 LED2 PER3 LED2 PER2 LED2 PER1 LED2 PER 0 Default 0 0 0 0 0 0 0 0 Read/write R/W R/W R/W R/W R/W R/W R/W R/W Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 43 TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com Bit 7 LED22: Control is determined by LED21 and LED22 according to the table. Default shown in bold. Bit 6-Bit 0 - LED2_ON are used to program the on-time of the open drain output transistor at the LED2 pin. The minimum on-time is typically 100 ms and one LSB corresponds to a 100-ms step change in the on-time. LED21 LED22 0 0 Off 0 1 Blink 1 0 Off 1 1 Always On 7.6.12 BEHAVIOR OF LED2 OPEN DRAIN OUTPUT VDCDC1 Register (Address: 0Ch—Reset: 32h/33h) VDCDC1 B7 B6 B5 B4 B3 B2 B1 B0 Bit name FPWM UVLO1 UVLO0 ENABLE SUPPLY ENABLE LP MAIN DISCHARGE MAIN1 MAIN0 Default 0 0 1 1 0 0 1 DEFMAIN Read/write R/W R/W R/W R/W R/W R/W R/W R/W The VDCDC1 register is used to program the VMAIN switching converter. Bit 7 - FPWM: forced PWM mode for DC-DC converters. • 0 = MAIN and the CORE DC-DC converter are allowed to switch into PFM mode. • 1 = MAIN and the CORE DC-DC converter operate with forced fixed frequency PWM mode and are not allowed to switch into PFM mode, at light load. Bit 6-Bit 5 - UVLO: The undervoltage threshold voltage is set by UVLO1 and UVLO0 according to the below table, with the reset in bold. UVLO1 UVLO0 0 0 VUVLO 2.5 V 0 1 2.75 V 1 0 3.0 V 1 1 3.25 V Bit 4 - ENABLE SUPPLY (selects between LOW-POWER mode and WAIT mode): • 0 = WAIT mode allowed, activated when LOW_PWR pin = 1 and VDCDC1 < 3 >= 1. • 1 = The TPS65011 enters LOW-POWER mode when LOW_PWR pin = 1 and VDCDC1 < 3 >= 1. Bit 3 - ENABLE LP: • 0 = disables the low-power function of the LOW_PWR pin. • 1 = enables the low power function of the LOW_PWR pin. Bit 2 - MAIN DISCHARGE: • 0 = disable the active discharge of the VMAIN converter output. • 1 = enable the active discharge of the VMAIN converter output, when the converter is disabled (i.e., in WAIT mode). Bit 1-Bit 0 - MAIN: The VMAIN converter output voltages are set according to the following table, with the reset in bold set by the DEFMAIN pin. The default voltage can subsequently be over-written via the serial interface after start-up. 44 MAIN1 MAIN0 VMAIN 0 0 2.5 V 0 1 2.75 V 1 0 3.0 V 1 1 3.3 V Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 7.6.13 VDCDC2 Register (Address: 0Dh—Reset: 60h/70h) VDCDC2 B7 Bit name B6 LP_COREOFF B5 CORE2 B4 B3 CORE1 CORE0 B2 CORELP1 CORELP0 B1 B0 VIB CORE DISCHARGE Default 0 1 1 DEFCORE 1 0 0 0 Read/write R/W R/W R/W R/W R/W R/W R/W R/W The VDCDC2 register is used to program the VCORE switching converter output voltage. It is programmable in 8 steps between 0.85 V and 1.8 V. The reset is governed by the DEFCORE pin; DEFCORE=0 sets an output voltage of 1.5 V. DEFCORE=1 sets an output voltage of 1.8 V. Bit 7 - LP_COREOFF: • 0 = VCORE converter is enabled in low power mode. • 1 = VCORE converter is disabled in low power mode. Bit 6-Bit 4 - CORE: The following table shows all possible values of VCORE. The reset can subsequently be overwritten via the serial interface after start-up. CORE2 CORE1 CORE0 VCORE 0 0 0 0.85 V 0 0 1 1.0 V 0 1 0 1.1 V 0 1 1 1.2 V 1 0 0 1.3 V 1 0 1 1.4 V 1 1 0 1.5 V 1 1 1 1.8 V Bit 3-Bit 2 - CORELP: CORELP1 and CORELP0 can be used to set the VCORE voltage in low power mode. In low power mode, CORE2 is effectively 0, and CORE1, CORE0 take on the values programmed at CORELP1 and CORELP0, default 10 giving VCORE = 1.1 V as default in low power mode. When low power mode is exited, VCORE reverts to the value set by CORE2, CORE1, and CORE0. Bit 1 - VIB: • 0 = disables the VIB output transistor. • 1 = enables the VIB output transistor to drive the vibrator motor. Bit 0 - CORE DISCHARGE: • 0 = disables the active discharge of the VCORE converter output. • 1 = enables the active discharge of the VCORE converter output in WAIT mode, or if VDCDC2 < 7 >= 1 in LOW-POWER mode. 7.6.14 VREGS1 Register (Address: 0Eh—Reset: 88h) VREGS1 B7 B6 B5 B4 B3 B2 B1 B0 Bit name LDO2 enable LDO2 OFF / nSLP LDO21 LDO20 LDO1 enable LDO1 OFF / nSLP LDO11 LDO10 Default 1 0 0 0 1 0 0 0 Read/write R/W R/W R/W R/W R/W R/W R/W R/W The VREGS1 register is used to program and enable LDO1 and LDO2 and to set their behavior when low-power mode is active. The LDO output voltages can be set either on the fly, while the relevant LDO is disabled, or simultaneously when the relevant enable bit is set. Note that both LDOs are per default ON. Bit 7-Bit 6 - The function of the LDO2 enable and LDO2 OFF/nSLP bits is shown in the following table. See the Power-Up Sequencing section for details of low-power mode. Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 45 TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com LDO2 ENABLE LDO2 OFF / nSLP LDO STATUS IN NORMAL MODE LDO STATUS IN LOW-POWER MODE 0 X OFF OFF 1 0 ON, full power ON, reduced power / performance 1 1 ON, full power OFF Bit 5-Bit 4 - LDO2: LDO2 has a default output voltage of 1.8 V. If so desired, this can be changed at the same time as it is enabled via the serial interface. LDO21 LDO20 VLDO2 0 0 1.8 V 0 1 2.5 V 1 0 3.0 V 1 1 3.3 V Bit 3-Bit 2 - The function of the LDO1 enable and LDO1 OFF / nSLP bits is shown in the following table. See the Power-Up Sequencing section for details of low-power mode. Note that programming LDO1 to a higher voltage may force a system power-on reset if the increase is in the 10% or greater range. LDO1 ENABLE LDO1 OFF / nSLP LDO STATUS IN NORMAL MODE LDO STATUS IN LOW-POWER MODE 0 X OFF OFF 1 0 ON, full power ON, reduced power and performance 1 1 ON, full power OFF Bit 1-Bit 0 - LDO1: The LDO1 output voltage is per default set externally. If so desired, this can be changed via the serial interface. LDO11 LDO10 VLDO1 0 0 ADJ 0 1 2.5 V 1 0 2.75 V 1 1 3.0 V 7.6.15 MASK3 Register (Address: 0Fh—Reset: 00h) MASK3 B7 B6 B5 B4 B3 B2 B1 B0 Bit name Edge trigger GPIO4 Edge trigger GPIO3 Edge trigger GPIO2 Edge trigger GPIO1 Mask GPIO4 Mask GPIO3 Mask GPIO2 Mask GPIO1 Default 0 0 0 0 0 0 0 0 Read/write R/W R/W R/W R/W R/W R/W R/W R/W The MASK3 register must be considered when any of the GPIO pins are programmed as inputs. Bit 7-Bit 4 - Edge trigger GPIO: determine whether the respective GPIO generates an interrupt at a rising or a falling edge. • 0 = falling edge triggered. • 1 = rising edge triggered. Bit 3-Bit 0 - Mask GPIO: can be used to mask the corresponding interrupt. Default is unmasked (mask GPIOx = 0). 7.6.16 DEFGPIO Register Address: (10h—Reset: 00h) DEFGPIO B7 B6 B5 B4 B3 B2 B1 B0 Bit name IO4 IO3 IO2 IO1 Value GPIO4 Value GPIO3 Value GPIO2 Value GPIO1 Default 0 0 0 0 0 0 0 0 Read/write R/W R/W R/W R/W R/W R/W R/W R/W 46 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 The DEFGPIO register is used to define the GPIO pins to be either input or output. Bit 7-Bit 4 - IO: • 0 = sets the corresponding GPIO to be an input. • 1 = sets the corresponding GPIO to be an output. Bit 3-Bit 0 - Value GPIO: If a GPIO is programmed to be an output, then the signal output is determined by the corresponding bit. The output circuit for each GPIO is an open drain NMOS requiring an external pullup resistor. • 1 = activates the relevant NMOS, hence forcing a logic low signal at the GPIO pin. • 0 = turns the open drain transistor OFF, hence the voltage at the GPIO pin is determined by the voltage to which the pullup resistor is connected. If a particular GPIO is programmed to be an input, then the contents of the relevant bit in B3-0 is defined by the logic level at the GPIO pin. A logic low forces a 0 and a logic high forces a 1. If a GPIO is programmed to be an input, then any attempt to write to the relevant bit in B3-0 is ignored. Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 47 TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com 8 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. 8.1 Application Information The VCORE and VMAIN converter are always enabled in a typical application. The VCORE output voltage can be disabled or reduced from 1.5 V to a lower, preset voltage under processor control. When the processor enters the sleep mode, a high signal on the LOW_PWR pin initiates the change. VCORE typically supplies the digital part of the audio codec. When the processor is in sleep or low-power mode, the audio codec is powered off, so the VCORE voltage can be programmed to lower voltages without a problem. A typical audio codec (e.g., TI AIC23) consumes about 20-mA to 30-mA current from the VCORE power supply. Supply LDO1 from VMAIN as shown in Figure 43. If this is not done, then subsequent to a UVLO, OVERTEMP, or BATT_COVER = 0 condition, the RESPWRON signal goes high before the VCORE rail has ramped and stabilized. Therefore, the processor core does not receive a power-on-reset signal. 48 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 8.2 Typical Applications AC Adapter AC BATT+ 1 mF X5R VBAT USB port 0.1 mF BATT− USB 1 mF X5R TPS65011 ISET TS TEMP PG GND CHARGER POWER GOOD PS_SEQ GND DEFCORE VBAT DEFMAIN VBAT LED2 VCC 1 mF X5R BATT_COVER 10 R VINCORE VCORE 1.5 V L2 VBAT PB_ONOFF GND HOT_RESET 10 mH 22 mF X5R 10 mF X5R VCORE VINMAIN VMAIN 3.3 V LOW_PWR L1 VBAT 6.2 mH 22 mF X5R VMAIN GPIO1 INT GPIO2 GPIO3 nPOR RESPWRON GPIO4 MPU_RESET VBAT 1 mF X5R VIB VMAIN 0.1 mF VINLDO1 VMAIN 0.1 mF VINLDO2 GND/VCC CHARGER/REG INTERRUPT PWRFAIL VLDO2 RESET to MPU Battery Fail, Battery Cover Removed, Over Temp. 2.2 mF X5R 1 M Each VLDO1 2.2 mF X5R IFLSB VFB_LDO1 SDAT SCL SDA SCLK PGND AGND Figure 43. Typical Application Circuit 8.2.1 Design Requirements Each DC-DC converter requires an external inductor and filter capacitor, capable of sustain the intended current with an acceptable voltage ripple. LDOs must have external filter capacitors, and LDO1 requires an external feedback network for regulation. Every input supply rail requires a decoupling capacitor close to the pin, and to avoid unintended states, logic inputs without internal resistors must not be left floating. Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 49 TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com Typical Applications (continued) 8.2.2 Detailed Design Procedure 8.2.2.1 Inductor Selection for the Main and the Core Converter The main and the core converters in the TPS65011 typically use a 6.2-µH and a 10-µH output inductor, respectively. Larger or smaller inductor values can be used to optimize the performance of the device for specific operation conditions. The selected inductor has to be rated for its dc resistance and saturation current. The dc resistance of the inductance influences directly the efficiency of the converter. Therefore, an inductor with lowest dc resistance is selected for highest efficiency. Equation 3 calculates the maximum inductor current under static load conditions. The saturation current of the inductor must be rated higher than the maximum inductor current as calculated with Equation 3. This is needed because during heavy load transient, the inductor current rises above the value calculated under Equation 3. V 1- O VI DIL = VO ´ L´ƒ (3) IL(max) = IO(max) + DIL 2 where • • • • • f = Switching frequency (1.25 MHz typical) L = Inductor value ΔIL= Peak-to-peak inductor ripple current ILmax = Maximum inductor current (4) The highest inductor current occurs at maximum VI. Open core inductors have a soft saturation characteristic, and they can usually handle higher inductor currents versus a comparable shielded inductor. A more conservative approach is to select the inductor current rating just for the maximum switch current of the TPS65011 (2 A for the main converter and 0.8 A for the core converter). Keep in mind that the core material from inductor to inductor differs and has an impact on the efficiency especially at high switching frequencies. Refer to Table 5 and the typical applications for possible inductors Table 5. Tested Inductors DEVICE INDUCTOR VALUE DIMENSIONS COMPONENT SUPPLIER 10 µH 6,0 mm × 6,0 mm × 2,0 mm Sumida CDRH5D18-100 Core converter Main converter 10 µH 5,0 mm × 5,0 mm × 3,0 mm Sumida CDRH4D28-100 4.7 µH 5,5 mm × 6,6 mm x 1,0 mm Coilcraft LPO1704-472M 4.7 µH 5,0 mm × 5,0 mm × 3,0 mm Sumida CDRH4D28C-4.7 4.7 µH 5,2 mm × 5,2 mm × 2,5 mm Coiltronics SD25-4R7 5.3 µH 5,7 mm × 5,7 mm × 3,0 mm Sumida CDRH5D28-5R3 6.2 µH 5,7 mm × 5,7 mm × 3,0 mm Sumida CDRH5D28-6R2 6.0 µH 7,0 mm × 7,0 mm × 3,0 mm Sumida CDRH6D28-6R0 8.2.2.2 Output Capacitor Selection The advanced fast response voltage mode control scheme of the inductive converters implemented in the TPS65011 allow the use of small ceramic capacitors with a typical value of 22 µF for the main converter and 10 µF for the core converter without having large output voltage under and overshoots during heavy load transients. Ceramic capacitors having low ESR values have the lowest output voltage ripple and are recommended. If required tantalum capacitors with an ESR < 100 ΩR may be used as well. Refer to Table 6 for recommended components. 50 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 If ceramic output capacitors are used, the capacitor RMS ripple current rating always meet the application requirements. Just for completeness the RMS ripple current is calculated as: V 1- O VI 1 IRMSC(out) = VO ´ ´ L´ ƒ 2´ 3 (5) At nominal load current, the inductive converters operate in PWM mode and the overall output voltage ripple is the sum of the voltage spike caused by the output capacitor ESR plus the voltage ripple caused by charging and discharging the output capacitor: V 1- O ö VI æ 1 DVO = VO ´ ´ç + ESR ÷ L ´ ƒ è 8 ´ CO ´ ƒ ø (6) Where the highest output voltage ripple occurs at the highest input voltage VI. At light load currents, the converters operate in power save mode and the output voltage ripple is independent of the output capacitor value. The output voltage ripple is set by the internal comparator thresholds. The typical output voltage ripple is 1% of the nominal output voltage. If the output voltage for the core converter is programmed to its lowest voltage of 0.85 V, the output capacitor must be increased to 22 µF for low output voltage ripple. This is because the current in the inductor decreases slowly during the off-time and further increases the output voltage even when the PMOS is off. This effect increases with low output voltages. 8.2.2.3 Input Capacitor Selection A pulsating input current is the nature of the buck converter. Therefore, a low ESR input capacitor is required for best input voltage filtering. It also minimizes the interference with other circuits caused by high input voltage spikes. The main converter needs a 22-µF ceramic input capacitor and the core converter a 10-µF ceramic capacitor. The input capacitor for the main and the core converter can be combined and one 22-µF capacitor can be used instead, because the two converters operate with a phase shift of 270 degrees. The input capacitor can be increased without any limit for better input voltage filtering. The VCC pin must be separated from the input for the main and the core converter. A filter resistor of up to 100 Ω and a 1-µF capacitor is used for decoupling the VCC pin from switching noise. Table 6. Possible Capacitors CAPACITOR VALUE CASE SIZE COMPONENT SUPPLIER COMMENTS 22 µF 1206 TDK C3216X5R0J226M Ceramic 22 µF 1206 Taiyo Yuden JMK316BJ226ML Ceramic 22 µF 1210 Taiyo Yuden JMK325BJ226MM Ceramic 8.2.3 Application Curves 100 100 90 VO = 1.6 V 90 80 80 60 VO = 0.85 V 50 40 VO = 2.5 V 60 50 40 30 30 Core: VI = 3.8 V, TA = 25°C, FPWM = 0 20 10 0 0.01 VO = 3.3 V 70 VO = 1.2 V Efficiency - % Efficiency - % 70 0.10 1 10 100 Main: VI = 3.8 V, TA = 25°C, FPWM = 0 20 10 1k 0 0.01 0.10 1 10 100 1k 10 k IO - Output Current - mA IO - Output Current - mA Figure 44. Efficiency vs Output Current Figure 45. Efficiency vs Output Current Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 51 TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com 8.3 System Examples AC Adapter Touchscreen Controller AC BATT+ VBAT USB port BATT− USB USB DP, Camera i/f TPS65011 ISET TS TEMP PG VBAT CHARGER POWER GOOD TPOR GND PS_SEQ GND VBAT DEFCORE DEFMAIN LED2 VCC OMAP1510 VBAT BATT_COVER VBAT PB_ONOFF GND HOT_RESET VINCORE VCORE 1.5V L2 VDD, VDD1, VDD2, VDD3 VCORE VINMAIN LOW_PWR VBAT VMAIN 3.3V VDDSHV2,8 L1 VMAIN GPIO1 INT CHARGER/REG INTERRUPT GPIO GPIO2 GPIO3 RESPWRON GPIO4 MPU_RESET VBAT VIB VMAIN VINLDO1 VMAIN VINLDO2 GND/VCC PWRFAIL nPOR RESPWRON RESET to MPU MPU_RESET Battery Fail, Battery Cover Removed, Overtemp. FIQ_PWRFAIL VLDO2 VDDSHV4,5 VLDO1 VDDSHV1,3,6,7,9 IFLSB VFB_LDO1 SDAT SCL SDA SCLK PGND ARMIO_5/LOW_POWER AGND ARMIO,LCD, Keyboard, USB Host, SDIO SDRAM, FLASH i/f @ 1.8 V/2.8 V Figure 46. Typical Application Circuit in Low-Power Mode 52 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 9 Power Supply Recommendations 9.1 LDO1 Output Voltage Adjustment The output voltage of LDO1 is set with a resistor divider at the feedback pin. The sum of the two resistors must not exceed 1 MΩ to minimize voltage changes due to leakage current into the feedback pin. The output voltage for LDO1 after start up is the voltage set by the external resistor divider. It can be reprogrammed with the I2C interface to the three other values defined in the register VREGS1. 10 Layout 10.1 Layout Guidelines The input capacitors for the DC-DC converters should be placed as close as possible to the VINMAIN, VINCORE, and VCC pins. • The inductor of the output filter should be placed as close as possible to the device to provide the shortest switch node possible, reducing the noise emitted into the system and increasing the efficiency. • Sense the feedback voltage from the output at the output capacitors to ensure the best DC accuracy. Feedback must be routed away from noisy sources such as the inductor. If possible route on the opposite side from the switch node and inductor and place a GND plane between the feedback and the noisy sources or keep-out underneath them entirely. • Place the output capacitors as close as possible to the inductor to reduce the feedback loop. This will ensure best regulation at the feedback point. • Place the device as close as possible to the most demanding or sensitive load. The output capacitors should be placed close to the input of the load. This will ensure the best AC performance possible. • The input and output capacitors for the LDOs should be placed close to the device for best regulation performance. • Use vias to connect thermal pad to ground plane. • TI recommends using the common ground plane for the layout of this device. The AGND can be separated from the PGND but, a large low parasitic PGND is required to connect the PGNDx pins to the CIN and external PGND connections. If the AGND and PGND planes are separated, have one connection point to reference the grounds together. Place this connection point close to the device. Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 53 TPS65011 SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 www.ti.com 10.2 Layout Example L2 Feedback L2 to Inductor L2 Filter Cap L1 Filter Cap L1 to Inductor Connect thermal pad to GND layer with vias L1 Feedback Figure 47. EVM Layout 54 Submit Documentation Feedback Copyright © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 TPS65011 www.ti.com SLVS501B – FEBRUARY 2004 – REVISED SEPTEMBER 2015 11 Device and Documentation Support 11.1 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. 11.2 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. 11.3 Trademarks E2E is a trademark of Texas Instruments. All other trademarks are the property of their respective owners. 11.4 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. 11.5 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 12 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 © 2004–2015, Texas Instruments Incorporated Product Folder Links: TPS65011 55 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) TPS65011RGZR ACTIVE VQFN RGZ 48 2500 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 85 TPS65011 (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
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