Datasheet > TPS61158

TPS61158

更新时间： 2024-01-24 15:51:59

品牌	Logo	应用领域
德州仪器 - TI		驱动器二极管
页数	文件大小	规格书
27页	1226K
描述
30V WLED Driver with Integrated Power Diode

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TPS61158 数据手册

TPS61158

www.ti.com

SLVSBR3 –MAY 2013

30V WLED Driver with Integrated Power Diode

Check for Samples: TPS61158

FEATURES

DESCRIPTION

With 30V rated integrated switch FET and power

diode, the TPS61158 is a boost converter that drives

LEDs in series. The boost converter runs at 750kHz

fixed switching frequency to reduce output ripple,

improve conversion efficiency, and allows for the use

of small external components.

•

2.7V to 5.5V Input Voltage Range

28V Open LED Protection (up to 8 LEDs)

Integrated 0.6A 30V Internal Switch FET and

Power Diode

•

750kHz Switching Frequency

The default white LED current is set with the external

sensor resistor RFB, and the feedback voltage is

regulated to 200mV, as shown in the typical

application. During the operation, the LED current can

be controlled using the 1-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

TPS61158 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 TPS61158 to prevent the output voltage from

exceeding the IC's absolute maximum voltage ratings

during open LED conditions. The TPS61158 is

available in a space-saving, 2mm × 2mm QFN

package with thermal pad.

Flexible Digital and PWM Brightness Control

–

1-Wire Control Interface (EasyScale)

PWM Dimming Control Interface

•

Up to 100:1 PWM Dimming Ratio

Integrated Loop Compensation

Built-in Soft Start

Built-in WLED Open protection

Thermal Shutdown

2mm x 2mm x 0.8mm 6-pin QFN Package with

Thermal Pad

APPLICATIONS

•

Feature Phones

Smart Phones

Portable Media Players

Ultra Mobile Devices

GPS Receivers

TYPICAL APPLICATION

Backlight for Small and Media Form Factor

LCD Display

22µH

2.7V ~ 5.5V

VBAT

Up to 8 LEDs

Cin

2.2µF

Cout

1µF

TPS61158

VIN

PWM or 1-wire

dimming control

CTRL

GND

VOUT

RFB

10ꢀ

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...27

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与TPS61158相关器件

型号	品牌	获取价格	描述	数据表
TPS61158DRVR	TI	获取价格	30V WLED Driver with Integrated Power Diode
TPS61158DRVT	TI	获取价格	30V WLED Driver with Integrated Power Diode
TPS61160	TI	获取价格	White LED Driver With Digital and PWM Brightness Control in 2mm x 2mm QFN Package for up t
TPS61160_14	TI	获取价格	White LED Driver With Digital and PWM Brightness Control in 2mm x 2mm QFN Package
TPS61160A	TI	获取价格	White LED Driver With PWM Brightness Control in 2mm x 2mm QFN Package for up to 10 LEDs in
TPS61160ADRV	TI	获取价格	White LED Driver With PWM Brightness Control in 2mm x 2mm QFN Package for up to 10 LEDs in
TPS61160ADRVR	TI	获取价格	White LED Driver With PWM Brightness Control in 2mm x 2mm QFN Package for up to 10 LEDs in
TPS61160ADRVT	TI	获取价格	White LED Driver With PWM Brightness Control in 2mm x 2mm QFN Package for up to 10 LEDs in
TPS61160DRV	TI	获取价格	暂无描述
TPS61160DRVR	TI	获取价格	White LED Driver With Digital and PWM Brightness Control in 2mm x 2mm QFN Package for up t

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