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Product details

Parameters

Number of channels (#) 1 Vin (Min) (V) 2.7 Vin (Max) (V) 18 Vout (Min) (V) 2.7 Vout (Max) (V) 26 Type Inductive Switching frequency (Max) (kHz) 600 LED current per channel (mA) 20 Peak efficiency (%) 90 Topology Boost 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 open-in-new Find other Backlight LED drivers

Features

  • Input Voltage Range: 2.7 V to 18 V
  • 26-V Open LED Protection for TPS61160A
    38-V Open LED Protection for TPS61161A
  • 200mV Reference Voltage With ±2% Accuracy
  • PWM Interface for Brightness Control
  • Built-in Soft Start
  • Up to 90% Efficiency
  • 2-mm × 2-mm × 0.8-mm 6-Pin WSON Package With Thermal Pad
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Description

With a 40-V rated integrated switch FET, the TPS61160A/61A is a boost converter that drives LEDs in series. The boost converter runs at 600-kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allows 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 by a pulse width modulation (PWM) signal applied to the CTRL pin through which the duty cycle determines the feedback reference voltage. In PWM dimming mode, the TPS61160A/61A 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 TPS61160A/61A to prevent the output from exceeding the absolute maximum ratings during open LED conditions.

The TPS61160A/61A is 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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Type Title Date
* Data sheet TPS6116xA White LED Driver with PWM Brightness Control in 2-mm x 2-mm WSON Package datasheet (Rev. C) Jul. 14, 2016
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
Technical article Here's how body electronics and lighting technology are changing the driving experience Sep. 26, 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 How to Use Analog Dimming With TPS6116x Aug. 05, 2011
More literature Seminar 400 Topic 1 - Current-Mode Control of Switching Power Supplies Feb. 15, 2001

Design & development

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WSON (DRV) 6 View options

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