Product details


Topology Boost Channels (#) 1 Vin (Min) (V) 2.7 Vin (Max) (V) 18 Vout (Min) (V) 2.7 Vout (Max) (V) 38 Iout (Max) (A) 0.02 Iq (Typ) (mA) 1.5 LED current per channel (mA) 20 Switching frequency (Max) (kHz) 600 Operating temperature range (C) -40 to 125 Features Global dimming, Thermal Shutdown Applications LCD Backlight Rating Automotive open-in-new Find other Automotive LED drivers

Package | Pins | Size

WSON (DRV) 6 4 mm² 2.0 x 2.0 open-in-new Find other Automotive LED drivers


  • Qualified for Automotive Applications
  • 2.7-V to 18-V Input Voltage Range
  • 38-V Open LED Protection for 10 LEDs
  • 200-mV Reference Voltage With ±2% Accuracy
  • Flexible Digital and PWM Brightness Control
  • Built-In Soft Start
  • Up to 90% Efficiency
  • 2-mm × 2-mm × 0.8-mm 6-pin QFN (DRV)
    Package With Thermal Pad
open-in-new Find other Automotive LED drivers


With a 40-V rated integrated switch FET, the TPS61161-Q1 is a boost converter that drives up to 10 LEDs in series. The boost converter runs at 600-kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allow for the use of small external components.

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. During the operation, the LED current can be controlled using the 1-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 TPS61161-Q1 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 TPS61161-Q1 to prevent the output from exceeding the absolute maximum ratings during open LED conditions.

The TPS61161 is available in a space-saving, 2-mm × 2-mm QFN (DRV) package with thermal pad.

open-in-new Find other Automotive LED drivers

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 7
Type Title Date
* Datasheet TPS61161-Q1 White Led Driver with Digital and Pwm Brightness Control for up to 10 LEDs In Series datasheet (Rev. A) Nov. 06, 2014
Application notes Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Technical articles Here's how body electronics and lighting technology are changing the driving experience Sep. 26, 2016
Technical articles LED brightness adjustment: high-frequency PWM dimming Aug. 26, 2016
Technical articles Take better selfies with innovative LED flashes Nov. 18, 2014
Technical articles Solving the automotive EMI issues in new cars with all the screens Sep. 10, 2014
Application notes How to Use Analog Dimming With TPS6116x Aug. 05, 2011

Design & development

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

Design tools & simulation

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 (...)
  • 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
  • (...)
SLVC366.ZIP (21 KB)

Reference designs

Fuel Quality Sensor for Automotive Applications
PMP8521 This reference design supports the supply and acts as an indicator for a fuel injector using the TPS61161-Q1, which the boost converter drives the input from 5V-12V to 30V output. The design is set to be efficient and accurate with flexible control and a precise reference voltage.
document-generic Schematic document-generic User guide

CAD/CAE symbols

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WSON (DRV) 6 View options

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