TPS92200D1DDCR

TPS92200 SLVSER4A – MAY 2020 – REVISED SEPTEMBER 2021 TPS92200 4-V to 30-V Input Voltage, 1.5-A Output Current, Synchronous Buck LED Driver With Flexible Dimming Options 1 Features 3 Description • • The TPS92200 device is a 1.5-A synchronous buck LED driver with 30-V maximum input voltage. By integrating the high-side and low-side NMOS switches, the TPS92200 device provides high power density with high efficiency in an ultra-small solution size. The TPS92200 device uses peak-current-mode control and full internal compensation to provide high transient response performance over a wide range of operating conditions. • • • • • • • • • • 4-V to 30-V wide input range Integrated 150-mΩ and 90-mΩ MOSFETs for 1.5-A continuous output current Ultra-low shut-down current: 1 μA Ultra-low output discharge current from load: 1 μA 1-MHz switching frequency Maximum duty cycle up to 99% Peak current mode with internal compensation Flexible dimming options: – TPS92200D1: PWM dimming with digital input and analog dimming with analog input – TPS92200D2: analog dimming with digital input Ultra-low and accurate FB voltage: 99 mV ±3 mV Full protection features: – LED open-load protection – LED+ short-to-GND protection with auto-retry – LED+ and LED– short circuitry protection with auto-retry – Sense-resistor open-load and short-to-GND protection with auto-retry – Thermal shutdown protection with auto-retry SOT23 (6) package VQFN-HR (6) package 2 Applications • • • • • • Video surveillance IR/White LED driver Facial recognition IR LED driver Stage lighting LED driver General industrial and commercial illumination Medical UV LED driver AA or Li-Ion battery charger The TPS92200 device supports flexible dimming methods. TPS92200D1 implements both PWM and analog dimming modes. In PWM dimming mode, LEDs turn on and off according to PWM duty cycle periodically. The device's analog dimming mode is achieved by changing the internal reference voltage proportional to the voltage level of the analog input in 5% to 100% range. TPS92200D2 implements deeper analog dimming by changing the internal reference voltage proportional to the duty cycle of the PWM signal input in 1% to 100% range. For safety and protection, the TPS92200 devices implement full protections, including LED open, LED+ short-to-GND, LED short, sense resistor open and short, and device thermal protection. Device Information PART NUMBER PACKAGE BODY SIZE (NOM) TPS92200D1DDCR SOT-23-THIN (6) 1.60 mm × 2.90 mm TPS92200D2DDCR SOT-23-THIN (6) 1.60 mm × 2.90 mm TPS92200D1RXLR(1) VQFN-HR (6) 1.50 mm × 2.00 mm TPS92200D2RXLR(1) VQFN-HR (6) 1.50 mm × 2.00 mm (1) Product preview status only. COUT L RSENSE RFB FB BOOT DIM SW GND VIN CBOOT EN/DIM Input RDIM VIN CIN Simplified Schematic 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. TPS92200 www.ti.com SLVSER4A – MAY 2020 – REVISED SEPTEMBER 2021 Table of Contents 1 Features............................................................................1 2 Applications..................................................................... 1 3 Description.......................................................................1 4 Revision History.............................................................. 2 5 Pin Configuration and Functions...................................3 6 Specifications.................................................................. 4 6.1 Absolute Maximum Ratings ....................................... 4 6.2 ESD Ratings .............................................................. 4 6.3 Recommended Operating Conditions ........................4 6.4 Thermal Information ...................................................4 6.5 Electrical Characteristics ............................................5 6.6 Timing Requirements ................................................. 6 6.7 Switching Characteristics ...........................................6 6.8 Typical Characteristics................................................ 7 7 Detailed Description......................................................10 7.1 Overview................................................................... 10 7.2 Functional Block Diagram......................................... 10 7.3 Feature Description...................................................11 7.4 Device Functional Modes..........................................15 8 Application and Implementation.................................. 17 8.1 Application Information............................................. 17 8.2 Typical Application.................................................... 17 9 Power Supply Recommendations................................30 10 Layout...........................................................................30 10.1 Layout Guidelines................................................... 30 10.2 Layout Example...................................................... 30 11 Device and Documentation Support..........................32 11.1 Receiving Notification of Documentation Updates.. 32 11.2 Support Resources................................................. 32 11.3 Trademarks............................................................. 32 11.4 Electrostatic Discharge Caution.............................. 32 11.5 Glossary.................................................................. 32 12 Mechanical, Packaging, and Orderable Information.................................................................... 32 4 Revision History Changes from Revision * (May 2020) to Revision A (September 2021) Page • Updated the numbering format for tables, figures and cross-references throughout the document...................1 • Added VQFN-HR package information...............................................................................................................1 • Added VQFN-HR package information...............................................................................................................1 • Add VQFN-HR package information...................................................................................................................3 • Added VQFN-HR package information.............................................................................................................30 2 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TPS92200 TPS92200 www.ti.com SLVSER4A – MAY 2020 – REVISED SEPTEMBER 2021 5 Pin Configuration and Functions FB 1 6 BOOT DIM 2 5 SW GND 3 4 VIN Not to scale Figure 5-1. DDC Package 6-Pin SOT-23-THIN Top View BOOT 1 SW 2 VIN 3 6 FB 5 DIM 4 GND Figure 5-2. RXL Package 6-Pin VQFN-HR Top View Table 5-1. Pin Functions PIN NAME DDC NO. RXL NO. BOOT 6 1 (1) TYPE(1) DESCRIPTION O A bootstrap capacitor is required between BOOT and SW. FB 1 6 I LED current detection feedback GND 3 4 G Power ground DIM 2 5 I Dimming input. In PWM dimming mode, LED current is turned ON and OFF according to PWM duty cycle periodically (TPS92200D1). In analog dimming mode, the internal reference is proportional to the analog voltage on DIM pin (TPS92200D1) or the PWM duty input (TPS92200D2). SW 5 2 O Switching node to external inductor VIN 4 3 P Input supply voltage I = Input, O = Output, P = Supply, G = Ground Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TPS92200 3 TPS92200 www.ti.com SLVSER4A – MAY 2020 – REVISED SEPTEMBER 2021 6 Specifications 6.1 Absolute Maximum Ratings over operating ambient temperature range (unless otherwise noted)(1) MIN MAX IN –0.3 32 V DIM –0.3 7 V FB –0.3 7 V BOOT-SW –0.3 7 V SW –0.3 32 V –5 32 V Operating junction temperature, TJ –40 150 °C Storage temperature range, Tstg –65 150 °C Input voltage range, VI Output voltage range, VO SW (20 ns transient) (1) UNIT Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Theseare stress ratings only, which do not imply functional operation of the device at these or anyother conditions beyond those indicated under Recommended OperatingConditions. Exposure to absolute-maximum-rated conditions for extended periods mayaffect device reliability. 6.2 ESD Ratings VALUE V(ESD) (1) (2) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2000 Charged-device model (CDM), per JEDEC specification JESD22-C101(2) ±500 UNIT V JEDEC document JEP155 states that 500-V HBM allows safemanufacturing with a standard ESD control process. JEDEC document JEP157 states that 250-V CDM allows safemanufacturing with a standard ESD control process. 6.3 Recommended Operating Conditions over operating ambient temperature range (unless otherwise noted) MIN MAX 4 30 V DIM –0.1 6 V FB –0.1 6 V BOOT-SW –0.1 6 V SW –0.1 30 V –40 125 °C IN Input voltage range Output voltage range Operating Junction temperature, TJ UNIT 6.4 Thermal Information THERMAL METRIC(1) TPS92200 RXL (VQFN-HR-6) 6 PINS 6 PINS UNIT RθJA Junction-to-ambient thermal resistance 123.4 136.1 °C/W RθJC(top) Junction-to-case (top) thermal resistance 60.5 95.3 °C/W RθJB Junction-to-board thermal resistance 41.4 49.3 °C/W ψJT Junction-to-top characterization parameter 12.3 4.6 °C/W ψJB Junction-to-board characterization parameter 40.9 48.1 °C/W (1) 4 TPS92200 DDC (SOT-23-6) For more information about traditional and new thermalmetrics, see the Semiconductor and IC Package Thermal Metricsapplication report, SPRA953. Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TPS92200 TPS92200 www.ti.com SLVSER4A – MAY 2020 – REVISED SEPTEMBER 2021 6.5 Electrical Characteristics The electrical ratings specified in this section apply to all specifications in thisdocument, unless otherwise noted. These specifications are interpreted as conditions that do notdegrade the device parametric or functional specifications for the life of the product containingit. TJ = –40°C to +125°C, VIN = 4 V to 30 V, (unlessotherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT SUPPLY VIN VIN_UVLO Input voltage range 4 VIN undervoltage lockout 30 V Rising VIN 3.5 3.7 3.9 V Falling VIN 3.3 3.5 3.7 V Hysteresis 0.2 V ISD Shut down current from VIN VIN = 12 V, VDIM = 0 V 1 3 µA IDISC Discharge current from SW and BOOT VIN floating, VDIM = 0 V 1 3 uA IOP Normal operating current VDIM = 3.3 V 0.5 1 mA DIMMING VDIM_L Low-level input voltage VDIM_H High-level input voltage 0.65 0.3 VANA Analog dimming range (TPS92200D1 only) 0.65 tDIM_ON1 DIM minimum on time to enable device (TPS92200D2 only) VDIM = 3.3 V tDIM_ON2 DIM minimum on time when PWM dimming (TPS92200D2 only) VDIM = 3.3 V tDIM_OFF DIM minimum off time to disable device VDIM = 0 V V V 190 1.2 V 300 nS 150 nS 36 mS FEEDBACK AND ERROR AMPLIFIER VFB_REF FB pin reference voltage VDIM = 3.3 V VFB_OVP FB pin overvoltage protection threshold VDIM = 3.3 V 140 mV VFB_DMAX FB reference voltage when maximum dimming input (TPS92200D1 only) VDIM = 1.2 V 99 mV FB reference voltage when minimum dimming input (TPS92200D1 only) VDIM = 0.65 V 5 mV FB reference voltage when minimum dimming duty cycle (TPS92200D2 only) DIM pin duty cycle