Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Device type | Isolated precision half-bridge gate driver |
| Isolation rating | 3 kV rms class |
| Peak output current | 4 A |
| Maximum switching frequency | 1 MHz |
| Output-side operating range | 4.5 V to 18 V |
| Secondary UVLO option | A grade, approximately 4.1 V turn-on threshold |
| Propagation delay | 54 ns maximum |
| Package | 16-lead SOIC |
Product Overview
ADUM3223ARZ is the A-grade orderable of Analog Devices’ ADuM3223 isolated precision half-bridge gate-driver family. It provides two isolated 4 A gate-drive outputs with tight timing matching and supports switching frequencies up to 1 MHz.
The A-grade selection is important because its secondary undervoltage lockout threshold is intended for lower-voltage gate-drive rails than the B- and C-grade versions. That makes ADUM3223ARZ relevant where the external power devices are driven from a supply near the lower end of the 4.5 V to 18 V output-side range.
Technical Specifications
| Parameter | Confirmed Information |
|---|---|
| Peak output current | 4 A |
| Maximum switching frequency | 1 MHz |
| Input logic | 3.3 V / 5 V CMOS compatible |
| Output-side supply | 4.5 V to 18 V |
| A-grade secondary UVLO | Approximately 4.1 V |
| Maximum propagation delay | 54 ns |
| Maximum channel matching | 5 ns |
| Common-mode transient immunity | >25 kV/µs |
UVLO and Power-Stage Selection
The A-grade UVLO threshold is the main electrical differentiator within the ADuM3223 ordering family. It should be selected to match the intended gate-drive rail and the gate-voltage requirements of the MOSFET or IGBT being driven.
Propagation delay and channel matching support precise half-bridge timing, but required dead time still depends on the external power devices, gate resistance and switching transition behavior.
Manufacturer Resource
Analog Devices ADuM3223 product page
Quality & Verification Support
Grade suffix, SOIC package, lot/date information and isolation-device traceability can be checked against the exact order code.
Request a Quote
Request ADUM3223ARZ exactly and include quantity, date-code and traceability requirements.
For a higher secondary gate-drive UVLO option in the same ADuM3223 isolated driver family, compare ADUM3223CRZ with this ADUM3223ARZ. Analog Devices specifies the A-grade VDD2 UVLO at approximately 4.1 V and the C-grade at approximately 11.0 V. This changes low-supply lockout behavior, so confirm gate-drive rail and power-device requirements rather than assuming grade interchangeability.
