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STMPS2272

ST Microelectronics
Part Number STMPS2272
Manufacturer ST Microelectronics
Description Enhanced dual-channel power switche
Published Feb 24, 2009
Detailed Description STMPS2242, STMPS2252 STMPS2262, STMPS2272 Enhanced dual-channel power switches Features ■ 100 mΩ high-side MOSFET switc...
Datasheet PDF File STMPS2272 PDF File

STMPS2272
STMPS2272

Overview
STMPS2242, STMPS2252 STMPS2262, STMPS2272 Enhanced dual-channel power switches Features ■ 100 mΩ 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 mΩ MOSFET high-side power switches for power distribution systems that require multiple power switches in a single package.
SO-8 MSOP8 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.
Table 1.
Device summary Order code SO-8 MSOP8(1) STMPS2242MTR STMPS2242TTR STMPS2252MTR STMPS2262MTR STMPS2272MTR STMPS2252TTR STMPS2262TTR STMPS2272TTR 1.
MSOP8 is also known as TSSOP8.
Current limit (mA) 500 500 1000 1000 Enable Active low Active high Active low Active high Packing Tape and reel Tape and reel Tape and reel Tape and reel January 2011 Doc ID 15050 Rev 3 1/42 www.
st.
com 42 Contents Contents STMPS2242, STMPS2252, S...


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