The ISP752R is a high-performance high-side switch from STMicroelectronics. It is suitable for industrial applications and offers overvoltage protection, overload protection, short circuit protection, thermal shutdown protection, ESD protection, overtemperature protection, and more.
The ISP 752 R is a N‑channel vertical power FET with an integrated charge pump and CMOS‑compatible input, designed for industrial 12‑42 V DC loads. It replaces electromechanical relays and provides embedded protection functions such as overload, current limiting, short‑circuit, thermal shutdown, ESD, and over‑voltage protection.
Key electrical characteristics include a supply voltage range of 6‑52 V, on‑state resistance around 200 mΩ, nominal load current of 1.3 A, turn‑on/off times of about 80 µs, standby current as low as 15‑18 µA, and a maximum power dissipation of 1.5 W. The device also features diagnostic outputs for open‑load and over‑temperature conditions.
| Operating voltage (Vbb on) | 6‑52 V |
|---|---|
| Maximum supply voltage (Vbb) | 52 V |
| On‑state resistance (RON, typical) | 200 mΩ |
| Nominal load current (IL nom) | 1.3 A |
| Turn‑on time (90% VOUT) | 80 µs |
| Turn‑off time (10% VOUT) | 80 µs |
| Standby current (Ibb off) | 15‑18 µA |
| Power dissipation (Ptot) | 1.5 W |
| Maximum junction temperature (Tj) | 150 °C |
It includes overload protection, current limitation, short‑circuit protection, thermal shutdown with restart, ESD protection, over‑voltage protection (including load dump), fast demagnetization of inductive loads, reverse battery protection, open‑drain diagnostic output, open‑load detection, loss‑of‑GND/Vbb protection, and very low standby current.
The typical on‑state resistance is about 200 mΩ at Tj = 25 °C, IL = 1 A, and Vbb = 9‑52 V.
The standby (off‑state) current is between 15 and 18 µA.
The device can tolerate a supply voltage up to 52 V (Vbb).