C1

D1

VIN

SW

FB

GND

CTRL

COMP

C2

20 mA

ON/OFF

DIMMING

CONTROL

38 V Max

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

V 3 V to 18 V

I

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

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.

TPS61160, TPS61161

SLVS791E – NOVEMBER 2007 – REVISED JULY 2016

TPS6116x White LED Drivers With Digital and PWM Brightness Control in 2-mm x 2-mm

WSON Package

1

1 Features

1

•

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 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

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

regulated to 200 mV, as shown in the Typical

Application. 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.

Device Information(1)

PART NUMBER

PACKAGE

OPEN LED PROTECTION

TPS61160

WSON (6)

TPS61160 use 26 V (typical)

TPS61161

TPS61161 use 38 V (typical)

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

the end of the data sheet.

Typical Application