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TPS61161

ACTIVE

White LED driver with Digital and PWM brightness control in 2mm x 2mm WSON Package

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NEW TPS923611 ACTIVE 30V, 1.8A synchronous boost LED driver with 0.1% ratio PWM-controlled analog dimming Newer Device with market 1st synchronous boost topology

TPS61161

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Vin (min) (V) 2.7 Vin (max) (V) 18 Vout (min) (V) 2.7 Vout (max) (V) 38 Type Inductive Switching frequency (max) (kHz) 600 Duty cycle (max) (%) 93 LED current per channel (mA) 20 Peak efficiency (%) 90 Topology Boost Features EasyScale 1-Wire Interface, Load Disconnect During Shutdown Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 1 Vin (min) (V) 2.7 Vin (max) (V) 18 Vout (min) (V) 2.7 Vout (max) (V) 38 Type Inductive Switching frequency (max) (kHz) 600 Duty cycle (max) (%) 93 LED current per channel (mA) 20 Peak efficiency (%) 90 Topology Boost Features EasyScale 1-Wire Interface, Load Disconnect During Shutdown Operating temperature range (°C) -40 to 85 Rating Catalog
WSON (DRV) 6 4 mm² (2 mm × 2 mm)
  • 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
  • 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

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.

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

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Top documentation Type Title Format options Date
* Data sheet TPS6116x White LED Drivers With Digital and PWM Brightness Control in 2-mm x 2-mm WSON Package datasheet (Rev. E) PDF | HTML Jul 14, 2016
White paper Common LED Functions and LED Driver Design Considerations Sep 21, 2020
Application note Some Guidelines and Tips for the LED Driver Application Aug 14, 2019
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
Application note Schottky Diode Selection in Asynchronous Boost Converters Sep 6, 2016
Application note How to Use Analog Dimming With TPS6116x Aug 5, 2011

Design & development

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

Evaluation board

TPS61161EVM-243 — TPS61161EVM-243 Evaluation Module

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 (...)

User guide: PDF
Supported products & hardware
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Support software

TPS6116XEVM-SW — Software for TPS6116x Evaluation Modules

The TPS6116xEVM-SW software provides a software interface for the TPS6116x/70 EVM boards. Use this software to change the TPS6116x IC register via the USB Interface Adapter.

Supported products & hardware
Simulation model

TPS61161 Unencrypted PSpice Transient Model Package (Rev. B)

SLVM968B.ZIP (211 KB) - PSpice model
Supported products & hardware
Calculation tool

SLVC366 — Design Tool for Analog Dimming Using a PWM Signal

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
WSON (DRV) 6 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

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