BTS436L2 is an intelligent high-side power switch with features like low standby current, short circuit protection, overload protection, current limitation, thermal shutdown, and overvoltage protection. It is suitable for microcontroller-compatible high-side power switches for 5V, 12V, and 24V grounded loads. It can replace electromechanical relays, fuses, and discrete circuits.
The BTS436L2 is a smart high‑side power switch from Infineon Technologies, implemented in N‑channel vertical power MOSFET technology with an integrated charge pump and diagnostic feedback. It is designed for micro‑controller‑compatible high‑side switching of 5 V, 12 V and 24 V grounded loads, handling resistive, inductive and capacitive loads, including those with high inrush currents.
Key features include very low standby current, CMOS‑compatible input, fast demagnetization of inductive loads, wide operating voltage range (4.75‑41 V), and a suite of protection functions such as short‑circuit, overload, current‑limit, thermal shutdown, over‑voltage, reverse‑battery, loss‑of‑ground and ESD protection. The device is offered in standard TO‑220 and SMD TO‑263 packages with detailed pin definitions and electrical characteristics provided in the datasheet.
| Operating voltage (VOB) | 4.75‑41 V |
|---|---|
| Nominal load current | 9.8 A |
| Current limit | 40 A |
| Power dissipation (DC) | 75 W |
| Thermal resistance (chip‑case) | 1.75 K/W |
| Input voltage range | -10 V to +16 V |
The nominal load current is specified as 9.8 A.