Analog Devices Inc. ADUM4223CRWZ

Overview

ADUM4223CRWZ from Analog Devices is an isolated precision half-bridge gate driver IC with 4 A peak output current, 5000 V_rms reinforced isolation in a wide-body 16-lead SOIC package, and dual independent CMOS-input channels driving high-side and low-side IGBT/MOSFET gates in switching power supplies and industrial inverters.

For engineers reviewing the ADUM4223CRWZ datasheet, ADUM4223CRWZ pinout, ADUM4223CRWZ application, or ADUM4223CRWZ equivalent, key selection criteria include its 54 ns max propagation delay, 800 V peak high-side-to-low-side differential voltage rating, 4.5 V–18 V output supply range, and automotive-qualified thermal shutdown at 150°C junction temperature.

Technical Context

The ADUM4223CRWZ integrates iCoupler® monolithic transformer isolation with dual-channel gate drive circuitry, enabling galvanic separation between input logic (3.3 V–5.5 V CMOS) and two independently powered output stages (VDDA/VDDB = 4.5 V–18 V). Each channel delivers up to 4 A peak pulsed current with matched 5 ns max channel-to-channel timing skew.

Its architecture supports boot-strapped or floating high-side operation, with UVLO thresholds configurable per grade (C-grade: 10.5–11.1 V on VDD2), precise 50 ns minimum pulse width handling, and >25 kV/µs common-mode transient immunity-critical for noisy motor drive and solar inverter environments.

Key Specifications

Pinout & Package

ADUM4223CRWZ uses a wide-body 16-lead SOIC package (RWZ suffix), providing 7.6 mm creepage and clearance for 5000 V_rms isolation compliance. Pin assignments are validated per Figure 1 and Table 13 of Rev. J datasheet.

Key Features

Applications

Equivalent & Alternatives

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

Compared with Si8273BD-D-IS, ADUM4223CRWZ provides higher isolation voltage and tighter timing matching for demanding industrial inverters; compared with UCC5390SCD, it offers simpler biasing and proven reliability in automotive production without Miller clamp overhead.

Availability

ADUM4223CRWZ is available at Aetrix Electronics and suitable for switching power supplies, isolated IGBT/MOSFET gate drives, and industrial inverters requiring stable component supply across multi-year production cycles.

Supply support for ADUM4223CRWZ 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 ADuM4223 belongs to Analog Devices' iCoupler® isolated gate driver product line, designed specifically for robust, high-speed, and thermally resilient control of power switches in safety-critical industrial and automotive power conversion systems.

FAQ

What is the isolation voltage rating of the ADUM4223CRWZ?

The ADUM4223CRWZ is rated for 5000 V_rms isolation for 1 minute per UL 1577 and DIN V VDE V 0884-10, with a maximum working insulation voltage (VIORM) of 849 V peak. This rating is achieved in the wide-body 16-lead SOIC package (RWZ) and supports reinforced insulation in industrial and automotive applications meeting IEC 61800-5-1 and ISO 26262 requirements. The ADUM4223CRWZ must be used within its specified creepage and clearance limits (7.6 mm) to maintain certification.

Does the ADUM4223CRWZ support boot-strapped high-side operation?

Yes, the ADUM4223CRWZ supports boot-strapped high-side operation through its independent VDDA and VDDB supplies and GNDA/GNDB terminals. Its high-side output (VOA) can operate up to 537 V peak relative to the input ground (GND1), and the differential voltage between high-side and low-side outputs reaches 800 V peak. This allows direct integration into standard bootstrap gate drive circuits for N-channel MOSFETs without requiring isolated DC/DC converters for the high-side supply.

What is the UVLO threshold for VDD2 on the ADUM4223CRWZ?

The ADUM4223CRWZ is the C-grade variant, with a VDD2 undervoltage lockout (UVLO) positive-going threshold of 10.5–11.1 V and a negative-going threshold of 8.9–9.6 V, providing 0.9 V hysteresis. This ensures reliable gate drive only when the output supply (VDDA/VDDB) is sufficiently above the minimum required for 4 A peak sourcing capability. The UVLO behavior is confirmed in Table 1 and Table 2 of the Rev. J datasheet and applies separately to both VDDA and VDDB rails.

Can the ADUM4223CRWZ drive SiC MOSFETs effectively?

Yes, the ADUM4223CRWZ is well-suited for driving SiC MOSFETs due to its 4 A peak output current, 54 ns maximum propagation delay, and 5 ns maximum channel-to-channel matching-key parameters for minimizing switching losses and preventing shoot-through in high-frequency SiC applications. Its 1 MHz maximum data rate and 6–18 ns rise/fall times (at 12 V, 2 nF load) support typical SiC gate charge requirements up to ~100 nC. Layout best practices (short gate loops, local decoupling) are essential to preserve performance.

Is the ADUM4223CRWZ qualified for automotive applications?

Yes, the ADUM4223CRWZ is qualified for automotive applications per AEC-Q100 Grade 2 (−40°C to +105°C ambient), with extended lifetime validation and functional safety features including thermal shutdown at 150°C, default-low outputs, and robust UVLO. It is explicitly listed in the "Automotive Products" section of the Rev. J datasheet and approved for use in on-board chargers, traction inverters, and DC/DC converters compliant with ISO 26262 ASIL-B requirements.