ITS 4142N is a smart high-side power switch for industrial applications. It has short circuit protection, current limitation, overload protection, overvoltage protection (including load dump), undervoltage shutdown (with auto-restart and hysteresis) and other features.
The ITS 4142N is a smart high‑side power switch designed for industrial use, offering short‑circuit, over‑voltage, overload, and thermal protection functions. It replaces electromechanical relays and supports resistive, inductive, and capacitive loads up to 12 V and 24 V DC.
The document details maximum ratings, electrical characteristics, EMC performance, and package information, including pin functions, thermal data, and ordering codes. It also outlines protection features such as undervoltage shutdown with auto‑restart and reverse‑battery protection.
| Operating voltage (Vbb) | 12 V – 45 V |
|---|---|
| Undervoltage shutdown voltage | 7 V – 10.5 V |
| On‑state resistance (Ron) typical | 200 mΩ |
| Thermal resistance (junction‑to‑ambient, min.) | 125 K/W |
| Supply voltage rating (Vo) | -0.31 V – 48 V |
The device operates from 12 V up to 45 V supply voltage.
It includes short‑circuit protection, over‑voltage protection, overload protection, thermal shutdown with restart, undervoltage shutdown with auto‑restart, reverse‑battery protection, and ESD protection.
The typical on‑state resistance is 200 mΩ at 25 °C.
The minimum thermal resistance is 125 K/W.