AEC-Q100 gate driver for automotive power stages
It drives IGBTs and N-channel MOSFETs with a 4A peak source and 4A peak sink current from a 4.5V to 18V supply rail. The inverting input means the output goes high when the input is pulled low — a detail that matters when pairing with a PWM controller that expects active-low drive.
Switching speed and drive strength
The 4A peak current handles the gate charge of a moderate-sized IGBT or MOSFET — think 10 nC to 30 nC gates — without excessive crossover conduction loss. Supply voltage tolerance from 4.5V to 18V covers the common automotive rails: 5V logic bias, 12V battery, and intermediate bus voltages. The low-side configuration means the driver's output references the same ground as the control logic — no level-shifting complexity.
The base product number UCC27518 identifies the family; the Q1 suffix flags the automotive qualification.