Four-channel high-side driver with 45 mOhm Rds(on)
The BTS5434G is a 4-channel high-side power switch from Infineon's PROFET family, designed to drive resistive, inductive, and capacitive loads. Each output can deliver up to 3.4 A continuous, with a typical on-resistance of 45 mOhm — this keeps conduction losses low enough that a 28-SOIC package can handle the thermal load without forced airflow.
Supply range and fault coverage
The load voltage spans 4.5 V to 28 V, covering standard automotive battery rails (12 V nominal) and industrial 24 V supplies. Fault protection includes adjustable current limiting, over-load, over-temperature, reverse battery, reverse current, and UVLO — the over-temperature protection alone saves a board spin if a load shorts to ground.
Active production — sourcing note
Infineon lists the BTS5434G as active. ROHS3 compliant.
