STMPS2242 datasheet(1/42 Pages) STMICROELECTRONICS

部件名	STMPS2242

功能描述	Enhanced dual-channel power switches

PDF	42 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 42 page

January 2011

Doc ID 15050 Rev 3

1/42

42

STMPS2242, STMPS2252

STMPS2262, STMPS2272

Enhanced dual-channel power switches

Features

■ 100 m

Ω high-side MOSFET switch

■ 500 mA/1000 mA continuous current per

channel

■ Thermal protection

■ Independent short-circuit protection with

overcurrent logic output

■ Operating range from 2.7 V to 5.5 V

■ CMOS and TTL compatible inputs

■ 2.5 ms typical rise time

■ Undervoltage lockout

■ 13 µA maximum standby supply current

■ Ambient temperature range: -40 °C to 85 °C

■ 8 kV ESD protection

■ Reverse current protection

■ Fault blanking

Description

The STMPS2242/2252/2262/2272 power

distribution switches are intended for applications

where heavy capacitive loads and short-circuits

are likely to be encountered. These devices

incorporate 100 m

Ω MOSFET high-side power

switches for power distribution systems that

require multiple power switches in a single

package.

Each switch is controlled by an independent logic

enable input. When the output load exceeds the

current limit threshold or a short is present, these

devices limit the output current to a safe level by

switching into a constant current mode, pulling the

overcurrent (OCx) logic output low. When

continuous heavy overloads and short-circuits

increase the power dissipation in the switch,

causing the junction temperature to rise, a

thermal protection circuit shuts off the switch to

prevent damage. Recovery from a thermal

shutdown is automatic once the device has

cooled sufficiently. Internal circuitry ensures the

switch remains off until valid input voltage is

present.

SO-8

MSOP8

Table 1.

Device summary

Order code

Current limit

(mA)

Enable

Packing

SO-8

MSOP8(1)

STMPS2242MTR

STMPS2242TTR

500

Active low

Tape and reel

STMPS2252MTR

STMPS2252TTR

500

Active high

Tape and reel

STMPS2262MTR

STMPS2262TTR

1000

Active low

Tape and reel

STMPS2272MTR

STMPS2272TTR

1000

Active high

Tape and reel

1.

MSOP8 is also known as TSSOP8.

www.st.com

类似零件编号 - STMPS2242

制造商	部件名	数据表	功能描述
STMicroelectronics	STMPS2262	336Kb / 7P	Enhanced Power Switch 12-Dec-2005
	STMPS2262MTR	336Kb / 7P	Enhanced Power Switch 12-Dec-2005
	STMPS2272	336Kb / 7P	Enhanced Power Switch 12-Dec-2005
	STMPS2272MTR	336Kb / 7P	Enhanced Power Switch 12-Dec-2005

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