The BTS 4880 R from Keysight Technologies is a smart power high-side switch with eight channels and an on-state resistance of 200 mΩ per channel. It features short circuit protection, maximum current internal limitation, overload protection, input protection, overvoltage protection (including load dump), undervoltage shutdown with auto-restart and hysteresis, switching inductive loads, thermal shutdown with restart, thermal independence of separate channels, ESD protection, loss of GND and loss of Vbb protection, very low standby current, reverse battery protection, programmable input for CMOS or Vbb/2, and a common diagnostic output (current output) for overtemperature.
The BTS 4880R is an Infineon Smart Power high‑side switch that integrates eight independent channels, each capable of delivering 0.625 A. It includes built‑in protection functions such as over‑voltage, under‑voltage shutdown with auto‑restart, short‑circuit, overload, thermal shutdown, ESD, and reverse‑battery protection, making it suitable for industrial PLC applications and as a replacement for electromechanical relays.
Key electrical characteristics include a typical on‑state resistance of 200 mΩ per channel, supply voltage range of 11‑45 V, standby current of 50‑150 µA, and thermal resistance junction‑to‑case of 1.5 K/W. The device is supplied in a compact QFN package with detailed pin assignments and ordering codes provided.
| Output current per channel | 0.625 A |
|---|---|
| Number of channels | 8 |
| On‑state resistance (Ron) | 200 mΩ |
| Supply voltage (Vbb) | 11 – 45 V |
| Undervoltage shutdown voltage | 7 – 10.5 V |
| Standby current | 50 – 150 µA |
| Thermal resistance (junction‑to‑case) | 1.5 K/W |
Each channel can continuously source up to 0.625 A.
The device contains eight independent high‑side channels.