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Product details

Parameters

Channels (#) 1 Vin (Min) (V) 2.7 Vin (Max) (V) 18 Switching frequency (Max) (kHz) 600 Product type Inductive LED current per channel (mA) 20 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

WSON (DRV) 6 4 mm² 2.0 x 2.0 WSON (DRV) 6 4 mm² 2 x 2 open-in-new Find other Backlight LED drivers

Features

  • 2.7-V to 18-V Input Voltage Range
  • 26-V Open LED Protection (TPS61160)
  • 38-V Open LED Protection (TPS61161)
  • 200-mV Reference Voltage With ±2% Accuracy
  • Flexible Digital and PWM Brightness Control
  • Built-in Soft Start
  • Up to 90% Efficiency
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Description

With a 40-V rated integrated switch FET, the TPS61160 and TPS61161 are boost converters that drive LEDs in series. The boost converters run 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 . 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 TPS61160 and TPS61161 do not burst the LED current; therefore, they do not generate audible noises on the output capacitor. For maximum protection, the device features integrated open LED protection that disable the TPS61160 and/or TPS61161 to prevent the output voltage from exceeding the device's absolute maximum voltage ratings during open LED conditions.

The TPS61160 and TPS61161 are available in a space-saving, 2-mm × 2-mm WSON package with thermal pad.

For all available packages, see the orderable addendum at the end of the data sheet.
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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS6116x White LED Drivers With Digital and PWM Brightness Control in 2-mm x 2-mm WSON Package datasheet (Rev. E) Jul. 14, 2016
Technical articles Overcoming challenges for backlight LED drivers in automotive display solutions Jul. 16, 2020
Application notes Some Guidelines and Tips for the LED Driver Application Aug. 14, 2019
Application notes Performing Accurate PFM Mode Efficiency Measurements (Rev. A) Dec. 11, 2018
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application notes Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) Nov. 29, 2017
Application notes Extending the Soft Start Time Without a Soft Start Pin (Rev. B) Jun. 15, 2017
Application notes Simple Backlight Driver Dimming Performance Mar. 20, 2017
Application notes Analog PWM Dimming in White-LED Drivers Dec. 21, 2016
Application notes Inductor Selection in Boost Converters for LCD Backlight Applications Oct. 24, 2016
Technical articles Here's how body electronics and lighting technology are changing the driving experience Sep. 26, 2016
Application notes Schottky Diode Selection in Asynchronous Boost Converters Sep. 06, 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
User guides TPS61161EVM-243 (Rev. D) May 07, 2013
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.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description

The TPS61161EVM-243 facilitates evaluation of the TPS61161 White LED Driver with Digital and PWM Brightness Control. With its 40 V rated integrated switch FET, the TPS61161 is a boost converter to drive up to 10 LEDs in series. The boost converter runs at 600 kHz fixed switching (...)

Features
  • 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

Design tools & simulation

SIMULATION MODELS Download
SLVM968B.ZIP (211 KB) - PSpice Model
SIMULATION TOOLS 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 TOOLS Download
SLVC366.ZIP (21 KB)
GERBER FILES Download
SLVC152.ZIP (101 KB)

Reference designs

REFERENCE DESIGNS Download
Boost 32V@0.15A for LED Driver for Magnifiers
PMP5451 — This low cost LED driver can regulate 350mA into a series string of LEDs with an output of up to 30V. It can operate over a wide input range and can tolerate transients up to 30Vin making it suitable for automotive applications. Open LED protection is included.

CAD/CAE symbols

Package Pins Download
WSON (DRV) 6 View options

Ordering & quality

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