Datasheet > TPS75100

TPS75100

更新时间： 2024-11-24 11:13:55

品牌	Logo	应用领域
德州仪器 - TI		驱动驱动器
页数	文件大小	规格书
28页	1516K
描述
具有 PWM 亮度控制功能的 10mA/通道低压降双列 LED 驱动器

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TPS75100, TPS75103, TPS75105

SBVS080J –SEPTEMBER 2006–REVISED NOVEMBER 2016

TPS7510x Low Dropout, Two-Bank LED Driver With PWM Brightness Control

1 Features

3 Description

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 a 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 (ENx, where x indicates LED bank A

or B). 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 25 mA per LED.

•

Regulated Output Current with 2% LED-to-LED

Matching

•

Drives Up to Four LEDs at 25 mA Each in a

Common Cathode Topology

28-mV 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 3 mA to 10 mA (in 1-mA

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, 0.4-mm

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

2.50-mm × 2.50-mm, 10-pin WSON 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 2.50-mm × 2.50-mm WSON-10

2 Applications

•

Keypad and Display Backlighting

White and Color LEDs

Cellular Handsets

Device Information⁽¹⁾

PART NUMBER

PACKAGE

WSON (10)

DSBGA (9)

BODY SIZE (NOM)

2.50 mm × 2.50 mm

1.208 mm x 1.208 mm

PDAs and Smartphones

TPS7510x

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

the end of the data sheet.

Typical Application Diagram

V_BATT

TPS7510x

V_IN

D1A

D2A

V_ENA

V_ENB

ENA

ENB

D1B

D2B

I_SET

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.

12 3 4 5 6 7...28

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与TPS75100相关器件

型号	品牌	获取价格	描述	数据表
TPS75100DSKR	TI	获取价格	具有 PWM 亮度控制功能的 10mA/通道低压降双列 LED 驱动器 \| DSK \| 1
TPS75100DSKT	TI	获取价格	具有 PWM 亮度控制功能的 10mA/通道低压降双列 LED 驱动器 \| DSK \| 1
TPS75100YFFR	TI	获取价格	具有 PWM 亮度控制功能的 10mA/通道低压降双列 LED 驱动器 \| YFF \| 9
TPS75100YFFT	TI	获取价格	具有 PWM 亮度控制功能的 10mA/通道低压降双列 LED 驱动器 \| YFF \| 9
TPS75101	TI	获取价格	FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS
TPS75101-EP	TI	获取价格	FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS
TPS75101Q	TI	获取价格	FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS
TPS75101-Q1	TI	获取价格	FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS
TPS75101QPWP	TI	获取价格	FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS
TPS75101QPWPG4	TI	获取价格	FAST-TRANSIENT-RESPONSE 1.5-A LOW-DROPOUT VOLTAGE REGULATORS

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