The ITS 4140N is a high-side power switch manufactured by Infineon for industrial applications. It features current controlled input, short circuit protection, overload protection, overvoltage protection, switching inductive loads, negative voltage clamp on output with inductive loads, thermal shutdown with restart, ESD protection, Gnd and Vbb protection, very low standby current, reverse battery protection, and improved electromagnetic compatibility (EMC).
The ITS 4140N is a current‑controlled N‑channel high‑side power switch implemented in Infineon's Smart SIPMOS® technology. It integrates multiple protection functions such as overload, over‑voltage, short‑circuit, reverse‑battery, and ESD protection, making it suitable for resistive, inductive, and capacitive loads in 12 V‑42 V industrial systems.
The datasheet details electrical characteristics, maximum ratings, thermal data, and EMC performance, along with the recommended PG‑SOT223 package and ordering code. It also includes application notes, test conditions, and regulatory compliance information.
| Operating voltage (Vbb(on)) | 4.9 V – 60 V |
|---|---|
| On‑state resistance (Ron) | 1 Ω |
| Maximum input pin current (DC) | +15 mA |
| Junction temperature (Tj) | +150 °C |
| Power dissipation (Prot) | 1.7 W |
The maximum supply voltage (Vbb) is 60 V.
The device operates from –30 °C to +85 °C.