C1

38V MAX

VIN

SW

FB

GND

CTRL

COMP

C2

20 mA

TPS61161A

ON/OFF

DIMMING

CONTROL

V 3 V to 18 V

I

L1

22

H

m

1

F

m

C3

220 nF

R

10

set

W

1

F

m

L1: TDK VLCF5020T-220MR75-1

C1: Murata GRM188R61E105K

C2: Murata GRM21BR71H105K

D1: ONsemi MBR0540T1

D1

Product

Folder

Sample &

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Technical

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Software

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

TPS61160A, TPS61161A

SLVS937C – MARCH 2009 – REVISED JULY 2016

TPS6116xA White LED Driver with PWM Brightness Control in

2-mm x 2-mm WSON Package

1

1 Features

1

•

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

2 Applications

•

Cellular Phones

•

Portable Media Players

•

Ultra Mobile Devices

•

GPS Receivers

•

White LED Backlighting for Media Form Factor

Display

3 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

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.

Device Information(1)

PART NUMBER PACKAGE

OPEN LED PROTECTION

TPS61160A

WSON (6)

TPS61160A use 26 V (typical)

TPS61161A

TPS61161A use 38 V (typical)

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Typical Application of TPS61161A