Datasheet > AAT4651IHS-T1

AAT4651IHS-T1

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
ANALOGICTECH		开关电源开关 PC
页数	文件大小	规格书
14页	338K
描述
5V/3V PC Card Power Switch

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

AAT4651IHS-T1 数据手册

AAT4651

5V/3V PC Card Power Switch

™

SmartSwitch

General Description

Features

The AAT4651 SmartSwitch is a single channel PC

card (PCMCIA) power switch. It is used to select

between two different voltage inputs, each between

2.7V and 5.5V. An internal switch powers the cir-

cuitry from whichever input voltage is higher. The

device's output, V_CC, is slew rate controlled and cur-

rent limited, in compliance with PC card specifica-

tions. The current limit response time to a short cir-

cuit is typically 1µs. The internal P-channel MOS-

FET switches are configured to break before make;

that is, both switches cannot be closed at the same

time. Controlled by a 2-bit parallel interface, the

three states for V_CCare V_CC5, V_CC3, or ground.

When in the ground state, V_CCis pulled to ground by

an 200Ω resistor. An open drain FAULT output is

asserted during over-current conditions. During

power-up slewing, FAULT also signals that V_CCis

out of tolerance. An internal over-temperature sen-

sor forces V_CCto a high impedance state when an

over-temperature condition exists. Quiescent cur-

rent is typically a low 15µA, as long as I_CCis less

than approximately 500mA. Above this load current,

the quiescent current increases to 200µA.

•

2.7V to 5.5V Input Voltage Range

80mΩ (5V) Typical R_DS(ON)

Low Quiescent Current: 15µA (Typ)

Reverse-Blocking Switches

Short-Circuit Protection

Over-Temperature Protection

FAULT Flag Output

Temperature Range: -40°C to +85°C

8-Pin SOP or TSSOP Package

Applications

•

Notebook Computer

PDA, Subnotebook

Power Supply Multiplexer Circuit

The AAT4651 is available in a Pb-free, 8-pin SOP

or TSSOP package and is specified over the -40°C

to +85°C temperature range.

Typical Application

VCC5

VCC3

VCC5

VCC3

6,7

VCC

VCCD1

VCCD0

FAULT

GND

VCCD1

VCCD0

FAULT

AAT4651

C_IN5

1μF

C_IN3

C_OUT

1μF

0.1μF

GND

4651.2006.05.1.2

12 3 4 5 6 7...14

下载PDF

与AAT4651IHS-T1相关器件

型号	品牌	描述	获取价格	数据表
AAT4670	ANALOGICTECH	Dual-Input, Dual-Output Load Switches	获取价格
AAT4670	AAT	Dual-Input, Dual-Output Load Switch	获取价格
AAT4670_06	ANALOGICTECH	Dual-Input, Dual-Output Load Switch	获取价格
AAT4670IAS-B1	ANALOGICTECH	Dual-Input, Dual-Output Load Switches	获取价格
AAT4670IAS-T1	ANALOGICTECH	Dual-Input, Dual-Output Load Switches	获取价格
AAT4670IAS-T1	AAT	Dual-Input, Dual-Output Load Switch	获取价格