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AAT3112IVN-4.5-T1

更新时间： 2024-02-27 22:34:42

品牌	Logo	应用领域
ANALOGICTECH		显示驱动器驱动程序和接口闪光灯泵
页数	文件大小	规格书
16页	354K
描述
500mA High Efficiency Charge Pump for White LED Flash Applications

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AAT3112IVN-4.5-T1 技术参数

是否Rohs认证：	符合	生命周期：	Active
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	1.23
Is Samacsys：	N	接口集成电路类型：	LED DISPLAY DRIVER
JESD-30 代码：	S-PQCC-N16	端子数量：	16
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	QCCN
封装等效代码：	LCC16,.12SQ,20	封装形状：	SQUARE
封装形式：	CHIP CARRIER	电源：	3.3 V
认证状态：	Not Qualified	子类别：	Display Drivers
标称供电电压：	3.3 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
Base Number Matches：	1

AAT3112IVN-4.5-T1 数据手册

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AAT3112

500mA High Efficiency Charge Pump

for White LED Flash Applications

™

ChargePump

General Description

Features

The AAT3112 is a member of AnalogicTech's Total

Power Management IC™ (TPMIC™) family. It is a

dual voltage doubling charge pump that provides a

regulated output voltage. It operates with an input

voltage range of 2.7 to 5.0 volts. The device can

deliver a constant 200mA output load current and up

to 500mA of pulsed current. The 500mA peak cur-

rent capability of the AAT3112 makes it ideal for

white LED flash applications. A low external parts

count (two 1µF flying capacitors and two small

capacitors at V_INand V_OUT) makes the AAT3112 ide-

ally suited for small battery-powered applications.

•

Input Voltage Range:

•

AAT3112-5.0: 2.7V to 5.0V

AAT3112-4.5: 2.7V to 4.5V

•

Up to 500mA Peak Output Current

200mA Continuous Output Current

I_Q<1µA in Shutdown

Regulated 4.5V or 5.0V Output

26µA of Quiescent Current

Small Application Circuit

Automatic Soft Start

No Inductors

Short-Circuit/Over-Temperature Protection

16-Pin 3x3mm QFN Package

Temperature Range: -40°C to +85°C

The AAT3112 has a thermal management system

to protect the device in the event of a short-circuit

condition at the output pin. Built-in soft-start circuit-

ry prevents excessive inrush current during start-

up. A high charge pump switching frequency

enables the use of very small external capacitors.

A low current shutdown feature disconnects the

load from V_INand reduces quiescent current to less

than 1µA. The AAT3112 is available in a 16-pin

3x3mm QFN package and is rated over the -40°C

to +85°C temperature range.

Applications

•

General-Purpose High-Current Boost Supply

White LED Backlighting

White LED Photo Flash

Typical Application

C1 = 1µF

C2 = 1µF

C2⁺C2^-

V_OUT1

C1⁺C1^-

V_IN

C_IN

C_OUT

V_OUT2

AAT3112

EN1

EN2

Enable Light

Enable Flash

R_B

GND

3112.2004.12.1.2

12 3 4 5 6 7...16

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