BTS 824R is a Smart High-Side Power Switch with four channels and status feedback from Infineon Technologies AG. It is designed for 12V and 24V grounded loads and can replace electromechanical relays, fuses and discrete circuits.
The BTS824R is a smart high‑side power switch with four parallel channels, each capable of handling high inrush currents for resistive, inductive and capacitive loads. It integrates charge‑pump MOSFETs, diagnostic feedback, and a range of protection functions such as short‑circuit, overload, thermal shutdown, over‑voltage, reverse‑battery and ESD protection.
The document provides detailed pin definitions, maximum ratings, thermal and electrical characteristics, operating parameters, and package information (P‑DSO‑20‑12). It is intended for designers who need to replace electromechanical relays or fuses with a compact, CMOS‑compatible solution.
| Operating voltage (Vbb) | 5.5 V – 40 V |
|---|---|
| On‑state resistance (R_on) | 9 mΩ typ – 22.5 mΩ max |
| Nominal load current (single channel) | 47 A |
| Nominal load current (parallel channels) | 19 A |
| Current limitation (per channel) | 12 A |
| Over‑voltage protection rating | 43 V |
| Power dissipation (all channels active) | 3.6 W |
| Thermal resistance (all channels active) | 34 K/W |
| Package / ordering code | P‑DSO‑20‑12 (Power SO‑20) |
The device operates from 5.5 V up to 40 V on the Vbb supply pin.
It has four independent channels; each can handle up to 47 A when used alone, or 19 A when channels are paralleled.
Typical on‑state resistance is 9 mΩ, rising to a maximum of 22.5 mΩ.