STBP112 is an overvoltage protection device produced by ST company. It has input overvoltage protection, high voltage N-channel MOSFET switch, integrated charging pump, maximum continuous current of 2A, thermal shutdown, soft start and other characteristics. It is suitable for smart phones, digital cameras, PDAs, MP3 players and other devices.
The STBP112 is an overvoltage protection device designed to protect systems connected to the OUT pin against DC power supply failures. It features an integrated high-voltage N-channel MOSFET switch with a low on-resistance of 170 mΩ and a maximum continuous current of 2 A. The device includes an integrated charge pump, thermal shutdown, and a soft-start feature to control inrush current. It is available in a small, RoHS-compliant 8-lead TDFN package measuring 2 x 2 x 0.75 mm.
The device operates by disconnecting the DC power supply when the input voltage exceeds the overvoltage lockout (OVLO) threshold or when the junction temperature exceeds the thermal shutdown limit. It also monitors for undervoltage conditions. The STBP112 can be controlled via an enable input (EN) and provides fault indication through an active low, open-drain output (FLT). It is intended for applications such as smartphones, digital cameras, PDAs, and other low-power handheld devices.
| Input overvoltage protection | up to 28 V |
|---|---|
| Integrated MOSFET on-resistance | 170 mΩ |
| Maximum continuous current | 2 A |
| Package type | 8-lead TDFN |
| Package dimensions | 2 x 2 x 0.75 mm |
| ESD protection (Air discharge) | +15 kV |
| ESD protection (HBM) | +2 kV |
The device provides overvoltage protection for input voltage up to +28 V.
The integrated high voltage N-channel MOSFET switch has a low on-resistance of 170 mΩ.
The device has a maximum continuous current of 2 A.
Yes, the device monitors its own junction temperature and switches off the internal MOSFET if the temperature exceeds the specified limit.