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AAT3193IJQ-3

更新时间： 2024-02-19 14:22:37

品牌	Logo	应用领域
ANALOGICTECH		驱动器驱动程序和接口接口集成电路泵
页数	文件大小	规格书
17页	632K
描述
Low-Cost, 2-/3-Channel Charge-Pump LED Drivers

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技术参数
数据手册

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AAT3193IJQ-3 技术参数

生命周期：	Not Recommended	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.46
Is Samacsys：	N	Base Number Matches：	1

AAT3193IJQ-3 数据手册

AAT3192/93

Low-Cost, 2-/3-Channel

Charge-Pump LED Drivers

™

ChargePump

General Description

Features

The AAT3192 and AAT3193 are charge-pump

based, current-sink white LED drivers capable of

driving one to three LEDs up to 30mA, each. They

automatically switch between 1x mode and 2x

mode to maintain the highest efficiency and opti-

mal LED current accuracy and matching.

•

Drives up to 3 LEDs at up to 30mA, each

Automatic Switching Between 1x and 2x Modes

0.9MHz Switching Frequency

Linear LED Output Current Control

— Single-wire, S Cwire Interface

•

AAT3192/93-1: 16-step

AAT3192/93-2: 8-step

AAT3192/93-3: 4-step

The AAT3192/93 charge pump’s 1x mode (bypass

mode) has very low resistance allowing LED cur-

rent regulation to be maintained with input supply

voltage approaching the LED forward voltage.

— ON/OFF or PWM Interface

AAT3192/93-4

•

10ꢀ LED Output Current Accuracy

3ꢀ LED Output Current Matching

Low-current Shutdown Mode

Built-in Thermal Protection

The AAT3192 and the AAT3193 are available in a

2x2mm 10-lead SC70JW-10 packages.

Automatic Soft-start

Available in 2x2mm SC70JW-10 Package

Applications

•

Low-cost Cordless Phone Handsets

Low-cost Digital Cameras

Low-cost Mobile Phone Handsets

Low-cost MP3 and PMP Players

Typical Application

Input Voltage

2.7V to 5.5V

Input Voltage

2.7V to 5.5V

C+

OUT

C+

C_IN

1μF

C_OUT

1μF

C_IN

1μF

C_P

C_OUT

1μF

AAT3193-1

1μF

C_P

1μF

WLEDs

AAT3192-1

C-

WLEDs

OSRAM LW M 678

or equivalent

C-

OSRAM LW M 678

or equivalent

EN/SET

S²Cwire

Interface

EN/SET

S²Cwire

Interface

EN/SET

RSET

GND

R_SET

14.3kΩ

R_SET

14.3kΩ

3193.2007.05.1.0

12 3 4 5 6 7...17

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