Datasheet > AAT3125

AAT3125

更新时间： 2024-09-17 04:30:31

品牌	Logo	应用领域
ANALOGICTECH		泵
页数	文件大小	规格书
12页	181K
描述
USB OTG 5V Charge Pump

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中文翻译

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AAT3125 数据手册

AAT3125

USB OTG 5V Charge Pump

™

ChargePump

General Description

Features

The AAT3125 USB On-the-Go (OTG) charge pump

is a member of AnalogicTech's Total Power

Management IC™ (TPMIC™) product family. The

device integrates a high efficiency 1.5X fractional

100mA regulated charge pump for supplying V_BUS

with the additional functions required for OTG

devices (formerly known as dual role devices).

Four voltage detectors monitor V_BUS, and a current

source dedicated for V_BUSpulsing is provided for

compliance with Session Request Protocol (SRP)

as defined by the USB OTG Supplement.

•

V_INRange: 2.7V to 5.5V

Regulated Fractional Charge Pump

100mA Output Current

Reverse Load Protection

Power Good Flag

SRP Detection Flag

SRP Ready Flag

Output Short-Circuit and Thermal Protection

Under-Voltage Protection

Less than 1µA Consumed While Disabled

Designed to Allow Operation with Output

Capacitance as Low as 3.3µF

16-pin QFN44 Package

The charge pump section uses a high efficiency

fractional topology, with a high frequency 750kHz

switching speed which enables the use of small

capacitors (less than 3.3µF). The AAT3125 fea-

tures extremely low quiescent current to extend

battery run time. Additionally, the device integrates

protection features such as under-voltage lockout,

and output short circuit and thermal protection.

•

-40°C to +85°C Temperature Range

Applications

•

Cell Phones

Hand-Held Computers

PDAs

The AAT3125 is available in a Pb-free, surface

mount QFN44-16 package and is rated over the

-40°C to +85°C temperature range.

Typical Application

OUT

VBUS

C_OUT

3.3µF to 6.5µF

AAT3125

1 Cell

Li-Ion

80kΩ

R_CS

0.2Ω

1µF

C1+

C1-

OUTCP

C_CP

1µF

C2+

C2-

1µF

POK1

POK2

POK1

POK2

SESDET

SRRDY

SESDET

SRRDY

GND

3125.2005.12.1.4

12 3 4 5 6 7...12

中文翻译

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