Analog Devices Inc. ADUM4224WBRWZ-RL

Overview

ADUM4224WBRWZ-RL from Analog Devices is a 4 A isolated precision half-bridge gate driver with reinforced 5000 V_rms isolation in a wide-body 16-lead SOIC package, supporting high-side/low-side IGBT/MOSFET switching up to 537 V peak relative to input and 800 V peak differential voltage. It delivers 59 ns max propagation delay, 5 ns max channel-to-channel matching, and operates from 3.3 V–5.5 V input logic with 4.5 V–18 V output drive for industrial inverters and isolated power supplies.

For engineers reviewing the ADUM4224WBRWZ-RL datasheet, ADUM4224WBRWZ-RL pinout, ADUM4224WBRWZ-RL application, or ADUM4224WBRWZ-RL equivalent, key selection criteria include its 5000 V_rms UL/VDE-rated isolation, 4 A peak output current, UVLO grade (B = 6.9 V), CMOS-compatible 3.3 V/5 V inputs, and thermal performance up to +125°C junction temperature.

Technical Context

The ADUM4224WBRWZ-RL integrates iCoupler® monolithic transformer isolation with dual independent CMOS drivers, enabling true galvanic separation between input control logic and high-voltage gate drive outputs. Its architecture supports bootstrapped half-bridge operation and maintains precise timing across wide supply and temperature ranges.

It features dual-channel propagation delay matching (≤5 ns), high common-mode transient immunity (>25 kV/µs), and secondary-side undervoltage lockout (UVLO) with 0.7 V hysteresis at 6.9 V turn-on threshold - critical for reliable IGBT/MOSFET gate control under fault conditions.

Key Specifications

Pinout & Package

ADUM4224WBRWZ-RL uses a wide-body 16-lead SOIC package (package code RWZ) with creepage/clearance ≥7.6 mm and VIORM = 849 V peak per DIN V VDE V 0884-10.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar isolated half-bridge gate driver applications.

Compared with Si8274ABD-IS and UCC5350MCDWVR, ADUM4224WBRWZ-RL uniquely combines B-grade 6.9 V UVLO, integrated DISABLE, and iCoupler® transformer-based isolation - delivering superior long-term reliability and deterministic fault response in mission-critical power systems.

Availability

ADUM4224WBRWZ-RL is available at Aetrix Electronics and suitable for industrial inverters, solar microinverters, and EV onboard chargers requiring stable component supply, automotive qualification, and reinforced 5000 V_rms isolation.

Supply support for ADUM4224WBRWZ-RL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The ADuM4224 product line delivers isolated gate drivers optimized for high-reliability industrial motor control, renewable energy, and automotive electrification - emphasizing precision timing, robust safety certification, and extended temperature operation.

FAQ

What is the isolation voltage rating of the ADUM4224WBRWZ-RL?

The ADUM4224WBRWZ-RL is rated for 5000 V_rms isolation for 1 minute per UL 1577, with VIORM = 849 V peak per DIN V VDE V 0884-10. This qualifies it for reinforced insulation in industrial and automotive applications where working voltages reach 537 V peak relative to input. The wide-body SOIC package provides ≥7.6 mm creepage and clearance distances to meet these safety requirements.

Does the ADUM4224WBRWZ-RL support bootstrapped half-bridge operation?

Yes, the ADUM4224WBRWZ-RL supports bootstrapped half-bridge operation. Its independent high-side (VOA/VDDA/GNDA) and low-side (VOB/VDDB/GNDB) outputs allow direct connection to bootstrap gate drive circuits. The device maintains precise channel-to-channel timing (≤5 ns matching) and withstands 537 V peak high-side voltage relative to input ground, enabling reliable operation in standard N-channel MOSFET half-bridge topologies.

What UVLO grade does the ADUM4224WBRWZ-RL implement?

The ADUM4224WBRWZ-RL implements the B-grade UVLO with a positive-going threshold of 6.9 V and hysteresis of 0.7 V. This means the driver disables outputs when VDDA or VDDB falls below 6.2 V and re-enables only after rising above 6.9 V - preventing partial turn-on of power devices during supply instability. This grade is confirmed in the ADuM4224 datasheet Rev. B, Table 1 and Table 2.

Can the ADUM4224WBRWZ-RL drive SiC MOSFETs effectively?

Yes, the ADUM4224WBRWZ-RL can effectively drive SiC MOSFETs. Its 4 A peak output current, 59 ns max propagation delay, and 5 ns channel matching support fast-switching SiC devices with high gate charge. The 4.5 V–18 V output supply range allows optimal gate voltage selection (e.g., 15 V for full enhancement), and its >25 kV/µs CMTI ensures robustness against the high dv/dt inherent in SiC switching.

Is the ADUM4224WBRWZ-RL qualified for automotive applications?

Yes, the ADUM4224WBRWZ-RL is explicitly qualified for automotive applications as stated in the ADuM3224/ADuM4224 datasheet Rev. B, page 1. It meets AEC-Q100 stress test requirements and supports junction temperatures up to +125°C. Its 5000 V_rms isolation, B-grade UVLO, and integrated DISABLE pin make it suitable for EV onboard chargers and traction inverter auxiliary drives requiring ASIL-B compliance.