Dual 4A low-side driver for N- and P-channel MOSFETs
The Texas Instruments UCC27424D is a dual-channel, low-side gate driver designed to drive both N-channel and P-channel MOSFETs. Each channel delivers a peak 4A source and 4A sink current, making it suited for driving the gate capacitance of medium-power switching devices in DC-DC converters, motor drives, and class-D audio amplifiers. The supply range spans 4V to 15V, covering common 5V and 12V bias rails. Non-inverting inputs and independent channel control simplify layout for half-bridge or dual-switch topologies.
20 ns rise time — what it means for switching loss
The 4A peak source/sink current drives MOSFET gate capacitance at moderate frequencies.
The 8-SOIC package (3.90 mm width) is a common footprint for low-side drivers; the small body suits space-constrained PCBs but demands careful thermal management if the driver is continuously sourcing 4A at high duty cycles — the junction temperature rise from self-heating should be checked against the 125°C limit.