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 | B grade, approximately 7.0 V |
| Ordering form | Reel |
| Package | 16-lead SOIC |
Product Overview
ADUM3223BRZ-RL7 is the B-grade reel orderable of Analog Devices’ ADuM3223 isolated precision half-bridge gate driver. It provides 4 A peak gate-drive current, up to 1 MHz switching and closely matched isolated high- and low-side channels.
The B-grade version uses a higher secondary UVLO threshold than the A-grade device, making it better aligned with gate-drive rails where operation below roughly 7 V should be inhibited. The -RL7 suffix adds the production reel distinction without changing the underlying B-grade electrical function.
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 |
| B-grade secondary UVLO | Approximately 7.0 V |
| Maximum propagation delay | 54 ns |
| Maximum channel matching | 5 ns |
| Common-mode transient immunity | >25 kV/µs |
UVLO Selection Considerations
The B-grade UVLO threshold protects against operation when the secondary gate-drive rail falls into a region that may not fully enhance some external power transistors. It should be compared with the minimum gate voltage required by the selected MOSFET or IGBT.
The driver timing specifications do not define system dead time by themselves. External gate resistance, device switching characteristics and controller timing remain part of the half-bridge design.
Manufacturer Resource
Analog Devices ADuM3223 product page
Quality & Verification Support
B-grade identity, reel packing, package marking, lot/date data and isolation-device traceability can be reviewed.
Request a Quote
Request ADUM3223BRZ-RL7 exactly and include quantity, date-code and traceability requirements.
