Datasheet > AAT4684

AAT4684

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
ANALOGICTECH		开关
页数	文件大小	规格书
13页	286K
描述
Over-Voltage Protection Switch

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AAT4684 数据手册

PRODUCT DATASHEET

AAT4684

OVPSwitch^TM

Over-Voltage Protection Switch

General Description

Features

The AAT4684 OVPSwitch™ is a member of AnalogicTech’s

Application Specific Power MOSFET™ (ASPM™) product

family. It is a P-channel MOSFET power switch with pre-

cise over-voltage protection control, designed to protect

low-voltage systems against high-voltage faults up to

+28V. If the input voltage exceeds the programmed

over-voltage threshold, the P-channel MOSFET switch

will be turned off to prevent damage to the output load

circuits. The AAT4684 is available with an internally pro-

grammed over-voltage trip point or as an adjustable

version programmed by two external resistors.

• Over-Voltage Protection Up to +28V

• Fixed or Adjustable Over-Voltage Protection Threshold

• 3V Under-Voltage Lockout Threshold

• Fast OVP Response:

▪ 1μs (Max) to Over-Voltage Transient

• Low Operation Quiescent Current

▪ 30μA Typical

▪ 1μA Max in Shutdown (Disabled)

• 100mΩ Typical (130mΩ max) R_DS(ON)at 4.5V

• 1.8A Maximum Continuous Current

• Temperature Range: -40°C to 85°C

• Available in TSOPJW-12 Package

The AAT4684 also includes an under-voltage lockout

(UVLO) protection circuit, which will put the device into

sleep mode at low input voltages only consuming < 1μA

of current.

Applications

• Cell Phones

The AAT4684 is offered in a small Pb-free, 12-pin

TSOPJW package and is specified for operation over the

-40°C to +85°C ambient temperature range.

• Digital Still Cameras

• GPS

• MP3 Players

• Personal Data Assistants (PDAs)

• USB Hot Swap/Live Insertion Device

Typical Application (Adjustable Version)

V_IO+5V

V_IN3V – 28V

Fault Flag

FLT

AAT4684

OVP

OUT

V_OUT

1μF

GND

w w w . a n a l o g i c t e c h . c o m

4684.2007.11.1.1

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