STMPS2171STR

STMPS2171STR is a power distribution switch intended for applications where heavy capacitive loads and short circuits are likely to be encountered. This device incorporates 90mW N-channel MOSFET high-side power switches for power distribution. This switch is controlled by a logic enable input. When the output load exceeds the current limit threshold or a short is present, the device limits the output current to a safe level by switching into a constant current mode. 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 the switch off to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures the switch remains off until a valid input voltage is present.

• Thermal and short-circuit protection with overcurrent logic output
• Operating range from 2.7 to 5.5V, CMOS and TTL compatible enable input
• Undervoltage lockout (UVLO), reverse current protection, fault blanking
• ESD protection: 8kV HBM, UL recognized components (UL file number: E354278)
• 1000mA rated continuous output current, active high enable
• 12µA maximum standby supply current
• Output rise time is 2ms maximum at (VIN = 5.0V, RL = 10 ohm, CL = 1µF)
• Static drain source ON state resistance is 200mohm max at (VIN = 2.7V; -40 <lt/> TJ <lt/> 125°C)
• Ambient temperature range from -40°C to 85°C
• SOT23-5L package