ADUM4224WARWZ-RL — 4A isolated gate driver for automotive and industrial drives
The ADUM4224WARWZ-RL is a 2-channel isolated gate driver from Analog Devices, built on magnetic coupling technology. It delivers 4A peak output current across a 5000Vrms isolation barrier, with 12ns rise and fall times and 54ns maximum propagation delay. The output supply range of 4.5V to 18V covers the gate drive voltages for standard MOSFETs, IGBTs, and SiC devices. The 25kV/µs minimum common-mode transient immunity keeps the output clean in high-noise motor drive environments.
4A peak drive — enough for most IGBT and SiC gate charge requirements
The 4A peak source and sink current handles the gate charge of medium-power IGBT modules (up to ~600A/1200V class) and SiC MOSFETs in the 30–80 nC range. The symmetrical 12ns rise/fall time minimizes switching losses without excessive ringing. For larger modules, the driver can be paralleled — the 4A rating is per channel.
5000Vrms reinforced isolation — meets automotive safety standards
The 5000Vrms isolation rating provides reinforced insulation for motor-drive and inverter applications where galvanic separation between the low-voltage control side and the high-voltage power stage is mandatory. The 25kV/µs minimum CMTI ensures the output does not glitch during fast-switching events — a common failure point in SiC and GaN designs. The Automotive series designation implies AEC-Q100 qualification, though the exact grade is not stated in this record.
54ns propagation delay — dead-time budget and switching frequency
With 54ns maximum propagation delay (both rising and falling), the ADUM4224WARWZ-RL supports switching frequencies beyond 100 kHz while leaving adequate dead-time margin for half-bridge topologies. The matched delays simplify dead-time calculation — the designer budgets 54ns plus the power device's turn-off delay. For frequencies above 200 kHz, the delay may become a limiting factor; a faster part like the ADUM4223 with identical timing but higher CMTI is a consideration.
16-SOIC wide-body — footprint and creepage
The 16-SOIC wide-body package (7.50mm width) provides 8mm minimum creepage, sufficient for reinforced isolation in 600V systems. Surface-mount assembly with standard reflow profiles. No exposed pad — all dissipation is through the leads.