Analog Devices Inc. ADUM3223WCRZ

Overview

ADUM3223WCRZ from Analog Devices is a 4 A isolated precision half-bridge gate driver in a narrow-body 16-lead SOIC package, delivering independent galvanically isolated high-side and low-side outputs with 3000 V_rms isolation rating, 54 ns max propagation delay, and 5 ns max channel-to-channel matching for IGBT/MOSFET control in switching power supplies and industrial inverters.

For engineers reviewing the ADUM3223WCRZ datasheet, ADUM3223WCRZ pinout, ADUM3223WCRZ application, or ADUM3223WCRZ equivalent, key selection criteria include its 537 V_peak working voltage (high-side or low-side relative to input), 800 V_peak high-side–to–low-side differential voltage capability, 4.5 V–18 V output drive range, thermal shutdown at 150°C, and A-grade UVLO threshold of 4.1 V on VDD2.

Technical Context

The ADUM3223WCRZ integrates iCoupler® monolithic transformer isolation with CMOS input logic and dual-channel gate drive circuitry, enabling true galvanic separation between input control and both high-side and low-side output stages. It supports boot-strapped half-bridge operation and delivers precise timing via matched propagation delays across channels.

Its architecture sustains continuous operation up to 537 V_peak between either output and input ground, while maintaining up to 800 V_peak differential voltage between outputs - critical for high-voltage motor drives and isolated DC-DC converters. The device operates with 3.0–5.5 V input supply and features default-low output state with disable functionality.

Key Specifications

Pinout & Package

ADUM3223WCRZ uses a narrow-body 16-lead SOIC package (SOIC_N-16) with creepage/clearance ≥4.0 mm and internal insulation gap ≥0.017 mm. Pin functions are validated per Figure 1 and Pin Configuration section of Rev. J datasheet.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADUM4223WCRWZ, the ADUM3223WCRZ offers smaller footprint and lower cost for 3 kV-rated systems, while SI8233BD-D-IS lacks integrated VDD2 UVLO - increasing design complexity and reducing fault coverage versus the ADUM3223WCRZ's self-contained protection.

Availability

ADUM3223WCRZ is available at Aetrix Electronics and suitable for switching power supplies, isolated IGBT/MOSFET gate drives, and industrial inverters requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.

Supply support for ADUM3223WCRZ 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, with R&D and manufacturing operations worldwide.

The ADUM3223WCRZ belongs to Analog Devices' iCoupler® isolated gate driver product line, designed specifically for robust, high-speed, and safety-certified control of power semiconductor switches in harsh electrical environments.

FAQ

What is the isolation voltage rating of the ADUM3223WCRZ?

The ADUM3223WCRZ has a rated dielectric insulation voltage of 3000 V_rms for 1 minute, certified per UL 1577, CSA Component Acceptance Notice 5A, and VDE V 0884-10. Its maximum working insulation voltage (VIORM) is 560 V_peak, qualifying it for reinforced insulation in industrial and automotive applications. This rating is confirmed in Tables 4 and 8 of the Rev. J datasheet.

Does the ADUM3223WCRZ support boot-strapped half-bridge operation?

Yes, the ADUM3223WCRZ explicitly supports boot-strapped half-bridge operation as documented in Section "Boot-Strapped Half-Bridge Operation" (Page 16) of the Rev. J datasheet. Its independent GNDA and GNDB terminals, combined with high-side relative-to-input voltage capability of 537 V_peak, enable direct integration with bootstrap gate drive circuits for N-channel high-side switches.

What UVLO thresholds does the ADUM3223WCRZ implement on VDD2?

The ADUM3223WCRZ is an A-grade variant and implements a VDD2 undervoltage lockout with a positive-going threshold of 4.1 V and negative-going threshold of 3.2 V, providing 0.5 V hysteresis. This ensures stable gate drive only when the output supply is within specification, preventing partial turn-on of power devices. These values are specified in Table 1 of the Rev. J datasheet.

Can the ADUM3223WCRZ drive SiC MOSFETs effectively?

Yes, the ADUM3223WCRZ can drive SiC MOSFETs effectively due to its 4 A peak output current, 54 ns maximum propagation delay, and fast 6–18 ns rise/fall times (at CL = 2 nF). Its 4.5–18 V output drive range accommodates typical SiC gate thresholds (15–20 V), and its >25 kV/µs CMTI mitigates noise-induced false triggering in high-dV/dt SiC switching environments.

Is the ADUM3223WCRZ qualified for automotive applications?

Yes, the ADUM3223WCRZ is qualified for automotive applications per AEC-Q100, as stated in the "Automotive Products" section (Page 20) and General Description (Page 1) of the Rev. J datasheet. It operates over −40°C to +125°C junction temperature and includes thermal shutdown at 150°C - meeting requirements for under-hood power electronics in EVs and hybrids.