4 A peak output in a 5x5 mm LGA — what it buys the power stage
The ADUM7223CCCZ is a 2-channel isolated gate driver from ADI's iCoupler series, using magnetic coupling to deliver 2500 Vrms isolation across the barrier. Its headline rating is 4 A peak output current, enough to drive the gate of a medium-power IGBT or SiC MOSFET through the Miller plateau without excessive switching loss. The 13-LGA package (5x5 mm) keeps the footprint tight for multi-channel motor-drive or inverter boards where board area is at a premium.
Propagation delay and CMTI — the timing budget for fast-switching environments
Maximum propagation delay is 62 ns in both directions, which keeps dead-time margins predictable when paired with a PWM controller. The 50 kV/µs minimum common-mode transient immunity means the output won't glitch when the switching node slews at tens of kilovolts per microsecond — a real concern in SiC or GaN half-bridge designs where the dv/dt can exceed 30 kV/µs. Rise and fall times are a symmetrical 12 ns typical, so the gate charge delivery is balanced between turn-on and turn-off.
The output supply range of 4.5 V to 18 V covers the common gate-drive bias voltages for IGBTs (typically 15 V) and SiC MOSFETs (18 V to 20 V). Surface-mount assembly on the 13-VFLGA package is straightforward with standard reflow profiles.
The iCoupler magnetic-coupling technology is a mature, widely second-sourced isolation platform.