Datasheet > AAT4620ITP-T1

AAT4620ITP-T1

更新时间： 2024-09-24 04:30:35

品牌	Logo	应用领域
ANALOGICTECH		PC
页数	文件大小	规格书
15页	593K
描述
PCMCIA Current Limit Interface and Capacitor Charger

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AAT4620ITP-T1 数据手册

AAT4620

PCMCIA Current Limit Interface

and Capacitor Charger

™

SmartSwitch

General Description

Features

The AAT4620 SmartSwitch is a current limited P-

channel MOSFET power switch designed for high-

side load-switching applications in PCMCIA

GSM/GPRS/3G modem cards. Used in conjunc-

tion with a super capacitor, the AAT4620 will

ensure that the power ratings of the PCMCIA host

are not exceeded at any time. Featuring two inde-

pendent, programmable current limits and a power

loop, the AAT4620 can ensure that the super

capacitor can be charged without exceeding PCM-

CIA specifications. The current limit is set by two

external resistors allowing a ±±0ꢀ current limit

accuracy over the normal operating temperature

range. The switch can be controlled from either of

the two enable inputs and in the off condition will

block currents in both directions. The AAT4620

also incorporates a System READY function which

can advise the system that the super capacitor is

fully charged and ready for use. Adjustable hys-

teresis is provided with the addition of an external

resistor. The quiescent supply current is typically a

low 40µA. In shutdown mode, the supply current

decreases to less than ±µA.

•

V_INRange: 3.0V to 5.5V

Dual Independent Current Limits

— ±00mA to ±200mA

— ±±0ꢀ Current Accuracy

— 20°C Temperature Band

Reverse Current Blocking Protection

Power Loop

Low Quiescent Current

— 40µA Typical

•

— ±.0µA Max with Switch Off

65mΩ Typical R_DS(ON)at 3V

Only ±.4V Needed for Enable Control Pin

System READY Output with Externally

Programmable Hysteresis

Under-Voltage Lockout

•

Temperature Range: -40 to 85°C

±2-Pin TSOPJW Package

Applications

•

CF Card Port Power Protection

Express Card GSM/GPRS/3G Modems

Hot Swap Supplies

PCMCIA Card GSM/GPRS/3G Modems

Personal Communication Devices

The AAT4620 is available in a thermally enhanced,

Pb-free, ±2-pin TSOPJW package and is specified

over the -40°C to 85°C temperature range.

Typical Application

±00kΩ

Reverse

Blocking

OUT

RDY

To Load

To μC

VCC

V _CC

Over-Temp

Protection

Power

Loop

Under-

Voltage

Lockout

EN IL

EN IU

EN_SUPERCAP

EN_OPERATION

Current

Limit

Control

ISETL

ISETU

±.2V

Reference

GND

SuperCap

R_HYS

R_SETU

R_SETL

4620.2007.04.1.1

12 3 4 5 6 7...15

中文翻译

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与AAT4620ITP-T1相关器件

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AAT4621	ANALOGICTECH	获取价格	PC Card Current Limit Interface and Capacitor Charger
AAT4621ITP-T1	ANALOGICTECH	获取价格	PC Card Current Limit Interface and Capacitor Charger
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AAT4621IWO-T1	ANALOGICTECH	获取价格	PC Card Current Limit Interface and Capacitor Charger
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AAT4625_06	ANALOGICTECH	获取价格	USB Single-Channel Power Switch
AAT4625IAS-1-B1	ANALOGICTECH	获取价格	USB Single-Channel Power Switch
AAT4625IAS-1-T1	ANALOGICTECH	获取价格	USB Single-Channel Power Switch
AAT4625IAS-1-T1	AAT	获取价格	USB Single-Channel Power Switch

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