What this isolated gate driver brings to a power stage
The ADUM4120ARIZ-RL is a single-channel isolated gate driver from Analog Devices' iCoupler series, built around magnetic coupling technology. It delivers 2.3 A peak output current across a reinforced 5000 Vrms isolation barrier, with a common-mode transient immunity of 150 kV/µs minimum. The output supply range spans 4.5 V to 35 V, making it suitable for driving both MOSFETs and IGBTs in motor drives, industrial power supplies, and inverter stages where galvanic isolation is mandatory.
Timing budget and switching performance
Propagation delay is specified at 69 ns (low-to-high) and 79 ns (high-to-low) maximum, with pulse-width distortion held to 16.5 ns max. These numbers set the dead-time window you need to program in the controller to avoid shoot-through.
Package and approvals for industrial deployment
Housed in a 6-SOIC package with 7.50 mm body width, surface-mount only. The part carries CSA, UR, and VDE safety approvals, which simplifies certification in equipment destined for North American and European markets. ROHS3 compliant per the listing.
Lifecycle and sourcing posture
It is recommended for new designs.