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Product details

Parameters

Channels (#) 1 Vin (Min) (V) 3 Vin (Max) (V) 18 Type Inductive Switching frequency (Max) (kHz) 1200 LED current per channel (mA) 400 Shutdown current (Typ) (uA) 1 Topology Boost Peak efficiency (%) 90 Features EasyScale 1-Wire Interface, Load Disconnect During Shutdown Operating temperature range (C) -40 to 85 open-in-new Find other Backlight LED drivers

Package | Pins | Size

SOT-23 (DBV) 6 5 mm² 2.9 x 1.6 WSON (DRV) 6 4 mm² 2 x 2 WSON (DRV) 6 4 mm² 2.0 x 2.0 open-in-new Find other Backlight LED drivers

Features

  • 3-V to 18-V Input voltage range
  • 38-V Open LED protection
  • 200-mV Reference voltage with 2% accuracy
  • 1.2-A Switch FET with 1.2-MHz switching frequency
  • Flexible one-wire digital and PWM brightness control
  • Built-in soft start
  • Up to 90% efficiency
  • 2-mm × 2-mm × 0.8-mm 6-Pin WSON package with thermal pad, and SOT-23 package

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Description

With a 40-V rated integrated switch FET, the TPS61165 device is a boost converter that drives LEDs in series. The boost converter runs at a
1.2-MHz fixed switching frequency with 1.2-A switch current limit, allowing the use of a high-brightness LED in general lighting.

The default white LED current is set with the external sensor resistor Rset, and the feedback voltage is regulated to 200 mV, as shown in the Typical Application drawing below. During the operation, the LED current can be controlled using the one-wire digital interface (EasyScale™ protocol) through the CTRL pin. Alternatively, a pulse-width-modulation (PWM) signal can be applied to the CTRL pin through which the duty cycle determines the feedback reference voltage. In either digital or PWM mode, the TPS61165 device does not burst the LED current; therefore, it does not generate audible noises on the output capacitor. For maximum protection, the device features integrated open-LED protection that disables the TPS61165 device to prevent the output from exceeding its absolute maximum voltage ratings during open LED conditions.

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Technical documentation

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Type Title Date
* Datasheet TPS61165 High-Brightness, White LED Driver in WSON and SOT-23 Packages datasheet (Rev. E) Mar. 27, 2019
White paper Common LED Functions and LED Driver Design Considerations Sep. 21, 2020
Technical article Overcoming challenges for backlight LED drivers in automotive display solutions Jul. 16, 2020
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application note Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) Nov. 29, 2017
Application note Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun. 15, 2017
Application note Simple Backlight Driver Dimming Performance Mar. 20, 2017
Application note Analog PWM Dimming in White-LED Drivers Dec. 21, 2016
Application note Inductor Selection in Boost Converters for LCD Backlight Applications Oct. 24, 2016
Technical article Here's how body electronics and lighting technology are changing the driving experience Sep. 26, 2016
Application note Schottky Diode Selection in Asynchronous Boost Converters Sep. 06, 2016
Technical article LED brightness adjustment: high-frequency PWM dimming Aug. 26, 2016
Technical article Take better selfies with innovative LED flashes Nov. 18, 2014
Application note Designing Low Cost Flyback Power Supply Using Boost Converter (TPS61165) for HF Apr. 17, 2014
User guide TPS61165EVM-283 (Rev. D) Jun. 13, 2013
Application note How to Use Analog Dimming With TPS6116x Aug. 05, 2011
Application note Compensating and measuring the DC/DC converter loop that powers a high-power LED Oct. 22, 2008

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
49
Description

The TPS61165EVM-283 facilitates evaluation of the TPS61165 High Brightness White LED Driver. With its 40 V rated integrated switch FET, the TPS61165 is a boost converter to driver up to 10 LEDs in series. The boost converter runs at 1.2 Hz fixed switching frequency to reduce output (...)

Features
  • 3 V to 18 V input voltage range
  • 38 V Open LED protection for 10 LEDs
  • 200 mV reference voltage with 2% accuracy
  • 1.2 A switch FET with 1.2 MHz switching frequency
  • Flexible Digital and PWM brightness control
  • Built-in soft start

Design tools & simulation

SIMULATION MODEL Download
SLVMBP3B.ZIP (583 KB) - PSpice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
CALCULATION TOOL Download
SLVC366.ZIP (21 KB)
GERBER FILE Download
SLVC348.ZIP (188 KB)

Reference designs

REFERENCE DESIGNS Download
Smart Backlight Control by White LED Driver, Ambient Light, and Proximity Sensor Reference Design
TIDA-01364 — The TIDA-01364 TI Design conserves power and extends LCD backlight life by dynamically adjusting the LCD backlight brightness relative to the environment's ambient light levels. A capacitive proximity sensor saves power and increases the LCD backlight life by waking up the system from sleep or (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
LED Driver SEPIC Converter (9.9V@0.24A) Reference Design
PMP10835 — This SEPIC converter regulates current in 3 series white LEDs to 0.24A while operating over an input voltage range of 8.7V - 16.5V. The SEPIC operates at 1.2MHz, allowing the circuit to occupy an area of only 10mm x 20mm. Applications include an LED backlight for portable medical devices.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
70V, 60mA White LED Driver with Dimming Control and Automatic Thermal Scale-Back Reference Design
TIDA-00660 Compact, High Efficienct (>90%) White LED Driver.  Drives a 440 lumen White LED at up to 70V at up to 60mA from a 6V to 18V source.  Includes voltage controlled dimming with automatic thermal to current scale-back for preventing high LED temperatures.  Designed for genral purpose (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 6 View options
WSON (DRV) 6 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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