Dual high-side switch — 19 mOhm, 5.5 A per channel
The Infineon BTS5241GNUMA1 is a dual-channel high-side power switch from the PROFET family, designed for general-purpose switching of resistive, inductive, and capacitive loads. Each of the two N-channel outputs delivers up to 5.5 A continuous with a typical on-resistance of 19 mOhm, keeping conduction losses low in a 20-SOIC (PG-DSO-20-21) surface-mount package.
Protection and control — fixed current limit, open load, overtemperature
Built-in fault protection covers current limiting (fixed), open load detection, overtemperature shutdown, and overvoltage clamping. A status flag output signals fault conditions to the host controller. The switch auto-restarts after an overtemperature fault, which simplifies recovery in systems that cannot cycle power. The input is non-inverting with a simple On/Off interface — no external Vcc supply rail required for the logic side, which reduces BOM count in designs where the microcontroller GPIO directly drives the enable pin.
Infineon lists the BTS5241GNUMA1 as obsolete.