This product is a high side power switch with overload protection, current limitation, short circuit protection, thermal shutdown, overvoltage protection, fast demagnetization, reverse battery protection, undervoltage shutdown, open drain diagnostic output, open load detection, CMOS compatible input, loss of ground and Vbb loss protection, electrostatic discharge protection.
The Siemens BTS 542 E2 is a smart high‑side power switch designed for 12 V and 24 V DC grounded loads. It integrates overload, over‑voltage, short‑circuit, thermal shutdown and reverse‑battery protection, and provides diagnostic feedback via an open‑drain output.
The document lists pin functions, maximum ratings, electrical characteristics, protection functions, diagnostic behavior, truth tables and package dimensions, enabling designers to select and implement the device in automotive, industrial and consumer electronics applications.
| Current limitation | 70 A |
|---|---|
| Load current (ISO) | 21 A |
| Power dissipation (DC) | 167 W |
| Input voltage (DC) | -0.5 V to +6 V |
| Operating temperature range | -40 °C to +150 °C |
| ESD capability | 2.0 kV (HBM) |
The device can handle a load current of up to 21 A (ISO rating).
The input voltage range is from –0.5 V to +6 V DC.
It can dissipate up to 167 W of DC power.