Analog Devices Inc. ADUM7223ACCZ

Overview

ADUM7223ACCZ from Analog Devices is a 4.0 A peak isolated half-bridge gate driver with independent high-side and low-side outputs, 64 ns max propagation delay, 8.5 ns max channel-to-channel matching, and 565 V peak working voltage from input to output. It drives IGBTs and MOSFETs in high-voltage switching power supplies requiring galvanic isolation and precise timing.

For engineers reviewing the ADUM7223ACCZ datasheet, ADUM7223ACCZ pinout, ADUM7223ACCZ application, or ADUM7223ACCZ equivalent, this page delivers verified specifications, functional pin mapping, real-world use cases in industrial inverters and isolated gate drive circuits, and validated alternative options for design continuity.

Technical Context

The ADUM7223ACCZ integrates iCoupler® monolithic transformer isolation with CMOS input logic and dual independent output drivers. Its architecture enables true galvanic isolation between input and each output channel, eliminating level-shifting limitations of non-isolated drivers.

It supports 3.0–5.5 V input supply and 4.5–18 V output supply with three UVLO variants (A/B/C); the "C" grade (indicated by suffix 'C' in ADUM7223ACCZ) features 10.5 V rising-edge UVLO on VDDA/VDDB. Propagation delay skew is limited to 12 ns across units, and channel-to-channel matching is ≤8.5 ns under 12 V output conditions.

Key Specifications

Pinout & Package

ADUM7223ACCZ uses a 5 mm × 5 mm, 13-terminal LGA package with exposed thermal pad (not electrically connected). Pin layout follows standard half-bridge driver topology with separate ground references for input (GND1), high-side output (GNDA), and low-side output (GNDB).

Key Features

Applications

Equivalent & Alternatives

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

Compared with Si8273ACD-IS and UCC5390SCD, ADUM7223ACCZ uniquely combines 4.5–18 V output flexibility, C-grade 10.5 V UVLO, and >25 kV/μs CMTI - making it optimal for high-noise, wide-input-voltage industrial and EV applications where rail stability and transient immunity are non-negotiable.

Availability

ADUM7223ACCZ 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 guaranteed traceable sourcing.

Supply support for ADUM7223ACCZ 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 ADuM7223 series belongs to Analog Devices' iCoupler® isolated gate driver product line, engineered specifically for high-reliability, high-speed isolated power conversion and motor control systems demanding precision timing and reinforced insulation.

FAQ

What is the UVLO threshold for VDDA and VDDB on ADUM7223ACCZ?

The ADUM7223ACCZ is the C-grade variant, meaning its VDDA and VDDB undervoltage lockout has a rising-edge threshold of 10.5 V and falling-edge threshold of 9.0 V, with 0.9 V hysteresis. This ensures gate drive remains active only when sufficient output rail voltage is present to reliably turn on power switches - a critical safeguard in high-voltage industrial systems. The same UVLO behavior applies to both VDDA and VDDB rails in the ADUM7223ACCZ.

Does ADUM7223ACCZ support 3.3 V input logic levels?

Yes, ADUM7223ACCZ fully supports 3.3 V input logic: its VIH threshold is 0.7 × VDD1 and VIL is 0.3 × VDD1, so with VDD1 = 3.3 V, VIH = 2.31 V and VIL = 0.99 V - comfortably compatible with standard 3.3 V CMOS outputs. Quiescent input current is only 0.87 mA typical at 3.3 V, and propagation delay remains ≤64 ns, making ADUM7223ACCZ suitable for low-power, 3.3 V controller interfaces without level translation.

How does the DISABLE pin function on ADUM7223ACCZ?

The DISABLE pin on ADUM7223ACCZ is active-high: when pulled high, it disables internal isolator refresh and forces both VOA and VOB outputs to logic low within 3 µs. When low, normal operation resumes and outputs follow VIA/VIB inputs within 1 µs. This pin is essential for fault handling - for example, tying it to an overcurrent comparator output allows immediate gate shutdown during short-circuit events. The ADUM7223ACCZ truth table confirms default-low behavior during disable, ensuring fail-safe operation.

What is the maximum recommended switching frequency for ADUM7223ACCZ?

ADUM7223ACCZ is rated for up to 1 MHz maximum data rate under CL = 2 nF and VDD2 = 12 V conditions, with guaranteed pulse width ≥50 ns. Its 64 ns max propagation delay and 12 ns max propagation skew enable stable operation at 1 MHz in hard-switched topologies. For resonant converters or SiC/GaN applications with faster edges, layout optimization (e.g., <20 mm bypass trace length, low-inductance gate loops) is required to maintain timing integrity - the ADUM7223ACCZ itself supports the frequency, but system-level parasitics determine practical limits.

Can ADUM7223ACCZ drive both IGBTs and SiC MOSFETs?

Yes, ADUM7223ACCZ is explicitly qualified for both IGBT and SiC MOSFET gate driving: its 4.0 A peak output current, low output resistance (~0.95 Ω source / 0.6 Ω sink), and 12 V-compatible drive capability meet the gate charge demands of modern 650 V and 1200 V SiC devices and high-C_iss IGBTs. The datasheet cites "isolated IGBT/MOSFET gate drives" as a primary application, and thermal shutdown at 150°C ensures reliability even under high dV/dt stress typical in SiC circuits - confirming ADUM7223ACCZ's suitability across wide-bandgap and silicon power devices.