Datasheet > LS0505EVD22

LS0505EVD22

更新时间： 2024-11-06 14:54:19

品牌	Logo	应用领域
力特 - LITTELFUSE		开关软启动
页数	文件大小	规格书
7页	808K
描述
LS0505EVD22集成负载开关，为下游电路系统提供强大的输入过流保护。该器件内置过压保护和内部软启动功能。开关的低RDS(ON)可将系统功率损耗降至最低。如果出现输入过压，LS0505E

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LS0505EVD22 数据手册

Protection IC Datasheet

LS0505EVD22

5 V, 5 A eFuse with Over Voltage and Over Current Protection

RoHS Pb

Description

The LS0505EVD22 integrated load switch provides a robust input

over-current protection to downstream circuit systems. The device

comes with built-in over-voltage protection, internal soft-start. The

switch’s low RDS(ON) minimizes power loss of the system. In the

event of input over voltage, LS0505EVD22 immediately turns off

the switch to prevent downstream system from stress of

excessive high voltage. Set the current limit level with an external

resistor. Internal soft-start ensures a smooth output voltage ramp-

up and limits the input in-rush current.

Features & Benefits

■ Wide Input Voltage Range

from 2.7 V to 6 V

■ Internal Soft-Start

■ Thermal Shutdown

■ 30 V Maximum Input / output

Voltage

■ Programmable Current Limit

Peak Current up to 5 A

■ 50mΩ Low RDS(ON)

Protection Switch

Pinout Designation

■ Hiccup Mode Protection for

Over Load or Short Circuit

■ Built-in Fast Response Over-

Voltage Protection at 6.2 V

■ DFN2X2_8L Package

OUT

ILIM

GND

■ Pb-Free and RoHS compliant

■ Discharge Output at OVP

GND

Applications

■ Bluetooth Headsets

■ Wearable Device

■ Tablet PC

■ Charging Cable

■ Battery Devices

■ Adapter Powered Devices

Typical Applications

Pin Description

AC Adapter

5VOUT

Pin # Pin Name

Description

OUT

GND

Ground pin

Input pin

Cin

1μF

Cout

1μF

LS0505EV

Output pin. OUT is discharged to GND through an

internal 80Ω resistor during OVP event.

Current limit program pin. Program the current

limit by connecting a resister to ground. This pin

can’t be short to ground.

OUT

ILIM

GND

ILIM

Rlimit

Enable interface pin. Pull it above ON threshold

to enable the IC. Pull it below OFF threshold to

disable the IC.

Functional Block Diagram

3,4,6

No Connection.

OUT

Charge

Pump

Soft

Start

UVLO

R=80

Vref

OVP

Driver

Discharge

Control

Current

Limit

GND

Thermal

Protection

ILIM

Speciﬁcations are subject to change without notice.

Revised: GD. 09/20/22

12 3 4 5 6 7

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