TPS75103

更新时间： 2024-09-22 12:16:19

品牌	Logo	应用领域
德州仪器 - TI		驱动器
页数	文件大小	规格书
19页	588K
描述
Low Dropout, Two-Bank LED Driver with PWM Brightness Control

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

TPS75103 数据手册

TPS7510x

www.ti.com

SBVS080H –SEPTEMBER 2006–REVISED JANUARY 2010

Low Dropout, Two-Bank LED Driver with PWM Brightness Control

FEATURES

DESCRIPTION

•

Regulated Output Current with 2% LED-to-LED

Matching

The TPS7510x linear low dropout (LDO) matching

LED current source is optimized for low power

keypad and navigation pad LED backlighting

applications. The device provides a constant current

to up to four unmatched LEDs organized in two banks

of two LEDs each in a common-cathode topology.

Without an external resistor, the current source

defaults to factory-programmable, preset current level

with ±0.5% accuracy (typical). An optional external

resistor can be used to set initial brightness to

user-programmable values with higher accuracy.

Brightness can be varied from off to full brightness by

inputting a pulse width modulation (PWM) signal on

each Enable pin. Each bank has independent enable

and brightness control, but current matching is done

to all four channels concurrently. The input supply

range is ideally suited for single-cell Li-Ion battery

supplies and the TPS7510x can provide up to 25mA

per LED.

Drives Up to Four LEDs at 25mA Each in a

Common Cathode Topology

28mV Typical Dropout Voltage Extends Usable

Supply Range in Li-Ion Battery Applications

•

Brightness Control Using PWM Signals

Two 2-LED Banks with Independent Enable

and PWM Brightness Control per Bank

•

No Internal Switching Signals—Eliminates EMI

Default LED Current Eliminates External

Components

–

Default values from 3mA to 10mA (in 1mA

increments) available using innovative

factory EEPROM programming

–

Optional external resistor can be used for

high-accuracy, user-programmable current

No internal switching signals are used, eliminating

troublesome electromagnetic interference (EMI). The

TPS7510x is offered in an ultra-small, 9-ball, 0.4mm

ball-pitch wafer chip-scale package (WCSP) and a

2,5mm × 2,5mm, 10-pin SON package, yielding a

very compact total solution size ideal for mobile

handsets and portable backlighting applications. The

device is fully specified over T_J= –40°C to +85°C.

•

Over-Current and Over-Temperature

Protection

Available in Wafer Chip-Scale Package

or 2,5mm × 2,5mm SON-10

APPLICATIONS

•

Keypad and Display Backlighting

White and Color LEDs

Cellular Handsets

PDAs and Smartphones

V_BATT

TPS7510x DSK

2,5mm x 2,5mm SON-10

(Top View)

TPS7510x

TPS7510x YFF

9-Ball WCSP

(Top View)

V_IN

D1A

V_ENA

V_ENB

ENA

ENB

D2A

ENB

ENA

D1A

D2A

GND

10 I_SET

V_IN

A3 B3

A2 B2

A1 B1

D1B

D2B

GND

D1B

D2B

I_SET

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.

All trademarks are the property of their respective owners.

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...19

中文翻译

下载PDF

与TPS75103相关器件

型号	品牌	获取价格	描述	数据表
TPS75103YFFR	TI	获取价格	Low Dropout, Two-Bank LED Driver with PWM Brightness Control
TPS75103YFFT	TI	获取价格	Low Dropout, Two-Bank LED Driver with PWM Brightness Control
TPS75105	TI	获取价格	具有 PWM 亮度控制功能的 25mA/通道低压降双列 LED 驱动器
TPS75105DSKR	TI	获取价格	Low Dropout, Two-Bank LED Driver with PWM Brightness Control
TPS75105DSKT	TI	获取价格	Low Dropout, Two-Bank LED Driver with PWM Brightness Control
TPS75105YFFR	TI	获取价格	Low Dropout, Two-Bank LED Driver with PWM Brightness Control
TPS75105YFFT	TI	获取价格	Low Dropout, Two-Bank LED Driver with PWM Brightness Control
TPS7510X	TI	获取价格	Low Dropout, Two-Bank LED Driver with PWM Brightness Control
TPS7510X_08	TI	获取价格	Low Dropout, Two-Bank LED Driver with PWM Brightness Control
TPS7510XYYYZ	TI	获取价格	Low Dropout, Two-Bank LED Driver with PWM Brightness Control

与TPS75103相关文章

摩尔斯微电子在美国约书亚树国家公园测试 Wi-Fi HaLow
2024-09-18

73
贸泽上架Tallysman TW5386智能GNSS天线
2024-09-18

65
SL74HC10N：高性能三输入与非门解析
2024-09-03

149
AIC1781A 电池充电控制器深度解析
2024-09-03

131

产品中心

服务支持

精选活动

关于我们

帮助中心

TPS75103

TPS75103 数据手册

与TPS75103相关器件

与TPS75103相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

TPS75103

TPS75103 数据手册

与TPS75103相关器件

与TPS75103相关文章

您还可以找

您在本页遇到什么问题？