STMPS2262 Datasheet, PDF (1/7 Pages) STMicroelectronics – Enhanced Power Switch

STMPS2262
STMPS2272
Features
■ 80mΩ HIGH-SIDE MOSFET SWITCH
■ 1000mA CONTINUOUS CURRENT PER
CHANNEL
■ INDEPENDENT THERMAL AND SHORT-
CIRCUIT PROTECTION WITH
OVERCURRENT LOGIC OUTPUT
■ OPERATING RANGE FROM 2.7V TO 5.5V
■ 2.5ms TYPICAL RISE TIME
■ UNDERVOLTAGE LOCKOUT
■ 10µA MAXIMUM STANDBY SUPPLY
CURRENT
■ AMBIENT TEMPERATURE RANGE, 0°C TO
85°C
■ 8kV ESD PROTECTION
■ REVERSE CURRENT PROTECTION
■ FAULT-BLANKING
Description
These devices power distribution switches are
intended for application where heavy capacitive
loads and short circuits are likely to be
encountered. These devices incorporate 80mΩ N-
channel MOSFET high-side power switches for
power-distribution systems that require multiple
powers switches in a single package. Each switch
is controlled by an independent logic enable input.
Gate drive is provided by an internal charge pump
designed to control the power-switch rise times
and fall times to minimize current surges during
switching.
Enhanced Power Switch
Data Brief
SO-8
The charge pump requires no external
components and allows operation from supplies
as low as 2.7 V. 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.
Order Codes
Part Number
STMPS2262MTR
STMPS2272MTR
Channel
2
2
R_ON (Ω)
80
80
Current Limit (mA)
1000
1000
Enable
Active Low
Active High
Package
SO-8
SO-8
December 2005
For further information contact your local STMicroelectronics sales office.
Rev. 1
1/7
www.st.com
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