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AAT2831IBK-T1

更新时间： 2024-02-16 14:36:33

品牌	Logo	应用领域
ANALOGICTECH		驱动程序和接口接口集成电路便携式便携式设备
页数	文件大小	规格书
21页	541K
描述
800mA Total Display Solution for Portable Devices

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技术参数
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AAT2831IBK-T1 技术参数

生命周期：	Active	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.46
Is Samacsys：	N	Base Number Matches：	1

AAT2831IBK-T1 数据手册

AAT2830/31

800mA Total Display Solution

for Portable Devices

™

ChargePump

General Description

Features

The AAT2830/31 is a total solution IC for portable dis-

play applications. Based on a tri-mode charge pump

power engine, it is capable of delivering 800mA of

output current with individual driving circuitries for

light emitting diode (LED) backlights, photo flash, and

RGB. The high conversion efficiency and high level

of integration make the AAT2830/31 the optimum

solution for battery life and size-critical applications.

•

Input Supply Voltage Range: 2.7V to 5.5V

Tri-Mode (1X/1.5X/2X) Charge Pump:

— Delivers up to 800mA of Output Current

— Switching Frequency: Up to 2MHz

Total Display Solution for RGB and Backlight

Applications

•

— 6-Channel Backlight WLED Backlight

•

User-Programmable Full-Scale Current,

up to 30mA

AnalogicTech's AS Cwire™ (Advanced Simple Serial

— 4-Channel Flash WLED Drive

Control™) serial digital input is used to enable, dis-

able, and set current for all of the outputs. Each back-

light LED output can be programmed to 30mAover 16

discrete steps. TheAAT2830/31 can also deliver up to

600mA to drive flash LEDs over four individual chan-

nels, with excellent current matching between chan-

nels. A built-in safety timer function allows easy, one-

trigger system control for photo flash applications.

•

User-Programmable Full-Scale Current,

up to 150mA

Torch/Flashlight/Movie Mode Operation

Auto-/Safety Flash Timer

•

— 3-Channel RGB

•

User-Programmable Full-Scale Output

Current/Duty Cycle

AAT2830: 4096 Color/Intensity

Combinations

The RGB output can be adjusted to handle up to

60mA, and the AS Cwire signal can drive the RGB

AAT2831: 64 Color/Intensity

module in up to 4096 (AAT2830) or 64 (AAT2831)

color intensity combinations.

Combinations

•

Single-Wire AS Cwire Serial Interface for

Configuration/Control

— Fourteen Addressable Registers

— Fast, 1MHz Serial Interface

True Load Disconnect in Shutdown, I_IN< 1µA

Built-in Thermal Protection

The AAT2830/31 is available in a Pb-free, thermal-

ly-enhanced 24-pin 4x4x0.75mm TQFN package.

•

Applications

Built-in Auto-Disable for Open LED Condition

Automatic Soft-Start Minimizes Inrush Current

Available in 4x4x0.75mm TQFN44-24 Package

•

Digital Still Cameras

LCD Display Modules

MP3 Players

White LED Drivers

Wireless Handsets

Typical Application

RGB LED

...

C_OUT

2.2μF

OUT FL1 FL2 FL3 FL4 BL1…BL4 BL5 BL6

G B

BSET

AAT2830 / 31

R_SET

280kΩ

EN/SET

V_BATTERY

Single-Cell Li+

C_T

0.1μF

C1+ C1- C2+ C2-

PGND AGND

C_IN

4.7μF

1μF

AS Cwire

Serial Control

2830.2007.09.1.0

12 3 4 5 6 7...21

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与AAT2831IBK-T1相关器件

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