STMPS2242, STMPS2252 STMPS2262, STMPS2272 are enhanced dual-channel power switches with 100 mΩ high-side MOSFET switch, 500 mA/1000 mA continuous current/channel, thermal protection, independent short-circuit protection, overcurrent logic output, 2.7 V to 5.5 V operating range, CMOS and TTL compatible inputs, 2.5 ms typical rise time, undervoltage lockout, 13 µA maximum standby supply current, -40 °C to 85 °C ambient temperature range, 8 kV ESD protection, reverse current protection, fault blanking.
The STMPS2242, STMPS2252, STMPS2262, and STMPS2272 are enhanced dual-channel power switches intended for applications where heavy capacitive loads and short-circuits are likely to be encountered. These devices incorporate 100 mQ 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.
| MOSFET resistance | 100 mQ |
|---|---|
| Continuous current per channel | 500 mA or 1000 mA |
| Operating voltage range | 2.7 V to 5.5 V |
| Standby supply current | 13 pA maximum |
| Ambient temperature range | -40 °C to 85 °C |
| ESD protection | 8 kV |
The switch limits the current at 500 mA for STMPS2242/STMPS2252.
The switch limits the current at 1000 mA for STMPS2262/STMPS2272.
The device limits the output current to a safe level by switching into a constant current mode and pulls the overcurrent logic output low.