Datasheet > TPS61161-Q1

TPS61161-Q1

更新时间： 2024-11-15 12:47:11

品牌	Logo	应用领域
德州仪器 - TI		驱动器
页数	文件大小	规格书
25页	885K
描述
WHITE LED DRIVER WITH DIGITAL AND PWM BRIGHTNESS CONTROL FOR UP TO 10 LEDs IN SERIES

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TPS61161-Q1 数据手册

TPS61161-Q1

www.ti.com......................................................................................................................................................................................... SLVSA18 –SEPTEMBER 2009

WHITE LED DRIVER WITH DIGITAL AND PWM BRIGHTNESS CONTROL

FOR UP TO 10 LEDs IN SERIES

Check for Samples: TPS61161-Q1

FEATURES

•

Qualified for Automotive Applications

•

Flexible Digital and PWM Brightness Control

Built-In Soft Start

2.7-V to 18-V Input Voltage Range

38-V Open LED Protection for 10 LEDs

200-mV Reference Voltage With ±2% Accuracy

Up to 90% Efficiency

2-mm × 2-mm × 0.8-mm 6-pin QFN (DRV)

Package With Thermal Pad

DESCRIPTION

With a 40-V rated integrated switch FET, the TPS61161 is a boost converter that drives up to 10 LEDs in series.

The boost converter runs 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 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 TPS61161 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 TPS61161 to prevent the output from exceeding the absolute maximum ratings

during open LED conditions.

The TPS61161 is available in a space-saving, 2-mm x 2-mm QFN (DRV) package with thermal pad.

V 3 V to 18 V

22 mH

1 mF

TPS61161

VIN

ON/OFF

CTRL

COMP

DIMMING

CONTROL

GND

set

10 W

220 nF

L1: TDK VLCF5020T-220MR75-1

C1: Murata GRM188R61E105K

C2: Murata GRM21BR71H105K

D1: ONsemi MBR0540T1

20 mA

Figure 1. Typical Application

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...25

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与TPS61161-Q1相关器件

型号	品牌	获取价格	描述	数据表
TPS61161QDRVRQ1	TI	获取价格	WHITE LED DRIVER WITH DIGITAL AND PWM BRIGHTNESS CONTROL FOR UP TO 10 LEDs IN SERIES
TPS61162A	TI	获取价格	适用于智能手机的双通道 WLED 驱动器
TPS61162AYFFR	TI	获取价格	适用于智能手机的双通道 WLED 驱动器 \| YFF \| 9 \| -55 to 125
TPS61162D	TI	获取价格	Dual-Channel WLED Drivers For Smart Phone
TPS61162D_16	TI	获取价格	Dual-Channel WLED Drivers for Smart Phones
TPS61162DYFFR	TI	获取价格	Dual-Channel WLED Drivers For Smart Phone
TPS61163	TI	获取价格	Dual-Channel WLED Drivers For Smart Phone
TPS61163A	TI	获取价格	适用于小型显示屏的双通道 WLED 驱动器
TPS61163AYFFR	TI	获取价格	适用于小型显示屏的双通道 WLED 驱动器 \| YFF \| 9 \| -40 to 85
TPS61163YFFR	TI	获取价格	Dual-Channel WLED Drivers For Smart Phone

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