Analog Devices Inc. ADUM7223ACCZ-RL7

Overview

ADUM7223ACCZ-RL7 from Analog Devices is an isolated precision half-bridge gate driver IC with independent high-side and low-side outputs, 4.0 A peak output current, 64 ns maximum propagation delay, 8.5 ns channel-to-channel matching, and 565 V peak working voltage (input-to-output). It drives IGBTs and MOSFETs in high-voltage switching power supplies.

For engineers reviewing the ADUM7223ACCZ-RL7 datasheet, ADUM7223ACCZ-RL7 pinout, ADUM7223ACCZ-RL7 application, or ADUM7223ACCZ-RL7 equivalent, key selection criteria include UVLO thresholds (VDD1 = 2.8 V, VDDA/VDDB = 10.5 V for C-grade), 5 mm × 5 mm LGA package with 13 terminals, 1 MHz max data rate, and galvanic isolation enabling robust operation in noisy industrial inverters.

Technical Context

The ADUM7223ACCZ-RL7 integrates iCoupler® monolithic transformer isolation with CMOS input logic and dual independent gate drive channels. Its architecture provides true galvanic isolation between input and each output, 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 C-grade UVLO at 10.5 V (rising) and 9.0 V (falling) on VDDA/VDDB. Propagation delay skew is limited to 12 ns across units, and thermal shutdown activates at 150°C junction temperature with hysteresis.

Key Specifications

Pinout & Package

ADUM7223ACCZ-RL7 uses a 5 mm × 5 mm, 13-terminal LGA (Land Grid Array) package with exposed thermal pad. Pin layout is optimized for high-voltage isolation: input-side pins (1–7) are physically separated from output-side pins (8–13), with no internal connection on pins 4 and 6 (NC).

Key Features

Applications

Equivalent & Alternatives

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

Compared with Si8273BD-D-IS and ISO5852SMDWR, ADUM7223ACCZ-RL7 offers tighter channel matching (8.5 ns vs. ≥15 ns) and lower propagation delay variation across temperature, making it preferable for high-precision timing-critical topologies like active clamp forward and phase-shifted full-bridge converters.

Availability

ADUM7223ACCZ-RL7 is available at Aetrix Electronics and suitable for industrial motor drives, photovoltaic inverters, and server power supplies requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for ADUM7223ACCZ-RL7 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 semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, industrial automation, and power conversion.

The ADuM7223 product line delivers isolated gate drivers combining iCoupler® transformer isolation with high-current gate drive, targeting high-reliability applications in switching power supplies and motor control where timing accuracy and voltage robustness are critical.

FAQ

What is the UVLO threshold for VDDA and VDDB on the ADUM7223ACCZ-RL7?

The ADUM7223ACCZ-RL7 is the C-grade version, with VDDA/VDDB undervoltage lockout thresholds of 10.5 V (rising) and 9.0 V (falling). This ensures the gate drive remains active until output supply drops below 9.0 V, preventing erratic switching during brown-out events in 12 V rail systems. The 0.9 V hysteresis prevents oscillation near the threshold.

Does the ADUM7223ACCZ-RL7 support 3.3 V logic inputs?

Yes, the ADUM7223ACCZ-RL7 supports 3.3 V logic inputs: its input supply range is 3.0 V to 5.5 V, and logic thresholds scale as 0.3×VDD1 (low) and 0.7×VDD1 (high). At VDD1 = 3.3 V, VIH = 2.31 V and VIL = 0.99 V, fully compatible with standard 3.3 V CMOS outputs. Quiescent input current is only 0.87 mA typical at 3.3 V.

How does the DISABLE pin function on the ADUM7223ACCZ-RL7?

The DISABLE pin on the ADUM7223ACCZ-RL7 is active-high: when pulled high, it forces both VOA and VOB outputs to logic low within 3 µs, overriding input states. When low, outputs follow VIA/VIB inputs. This provides hardware-level fault protection - for example, tying DISABLE to a microcontroller's fault pin ensures immediate gate shutoff during overcurrent detection.

What is the thermal shutdown behavior of the ADUM7223ACCZ-RL7?

The ADUM7223ACCZ-RL7 features thermal shutdown that activates at 150°C junction temperature (TJR), forcing outputs low. It remains latched off until junction temperature falls to ~140°C (TJF), providing 10°C hysteresis. This protects against sustained overloads in high-power inverters. Thermal resistance is θJA = 96.3°C/W, so at 1 W dissipation, junction rise is ~96°C above ambient.

Can the ADUM7223ACCZ-RL7 drive SiC MOSFETs?

Yes, the ADUM7223ACCZ-RL7 can drive SiC MOSFETs: its 4.0 A peak output current, 12 ns typical rise/fall time (with 2 nF load), and 0.95 Ω typical source resistance enable fast turn-on of high-input-capacitance SiC devices. Its 1 MHz max data rate and 64 ns propagation delay support high-frequency (>200 kHz) SiC-based topologies like Totem-Pole PFC.