What this dual low-side driver handles
The Texas Instruments UCC37324D is a dual low-side gate driver in an 8-SOIC package, designed to drive both N-channel and P-channel MOSFETs with independent, non-inverting channels. Each channel delivers 4A peak source and 4A peak sink current, with typical rise and fall times of 20 ns and 15 ns respectively — fast enough to switch large-gate-charge power MOSFETs cleanly at moderate frequencies without excessive switching loss. The supply range spans 4.5 V to 15 V, covering common 5 V, 12 V, and intermediate rails used in isolated DC-DC converters, motor-drive pre-drive stages, and push-pull topologies.
Temperature range and deployment fit
Rated for junction temperatures from -55°C to 150°C, this driver suits extreme environments where standard industrial (-40°C to 125°C) parts would be marginal — avionics, downhole instrumentation, satellite power systems, or engine-bay auxiliary supplies. The wide range also provides headroom for designs that run hot under full load, letting the junction rise above 125°C without violating the absolute maximum.
Logic thresholds and input compatibility
The logic input thresholds are 1 V (VIL) and 2 V (VIH), making the driver directly compatible with 3.3 V and 5 V logic families from MCUs, FPGAs, or DSPs without external level shifting. This simplifies the interface in mixed-voltage designs where the gate-drive supply is 12 V but the controller runs on 3.3 V.
Package and supply posture
No last-time-buy or obsolescence notice is in effect, so the part can be specified into new designs without near-term supply risk.