Overview
The ADUM3221WBRZ is an isolated, 4 A dual-channel gate driver produced by Analog Devices Inc. This component utilizes Analog Devices' iCoupler® technology, combining high-speed CMOS and monolithic transformer technology to provide superior performance characteristics. It offers true galvanic isolation between the input and each output, enabling voltage translation across the isolation barrier. The ADUM3221WBRZ is designed for high-frequency operation, supporting frequencies from DC to 1 MHz, and features CMOS input logic levels and high common-mode transient immunity.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 2 |
| Output Current | 4 A |
| Input Supply Voltage | 3.0 V to 5.5 V |
| Output Supply Voltage | 4.5 V to 18 V (ADuM3221A), 7.6 V to 18 V (ADuM3221B) |
| Propagation Delay | 60 ns |
| Channel-to-Channel Matching | 5 ns |
| Voltage Isolation | 2500 Vrms |
| Common Mode Transient Immunity | >25 kV/μs |
| Junction Temperature | −40°C to +125°C |
| Package | 8-lead SOIC, 5 mm × 6 mm × 1.6 mm |
| Regulatory Approvals | UL recognition, CSA Component Acceptance Notice #5A, VDE certificate of conformity DIN V VDE V 0884-10 |
Key Features
- True galvanic isolation between input and each output using iCoupler technology
- High-speed operation: DC to 1 MHz
- CMOS input logic levels
- High common-mode transient immunity: >25 kV/μs
- Enhanced system-level ESD performance per IEC 61000-4-x
- Thermal shutdown protection at >150°C
- Output shoot-through logic protection (ADuM3220), or simultaneous output operation (ADuM3221)
- Default low output characteristic
- Narrow body, RoHS-compliant package
- Qualified for automotive applications
Applications
- Isolated synchronous DC-to-DC converters
- MOSFET/IGBT gate drivers
- Automotive systems requiring high isolation and reliability
Q & A
- What is the ADUM3221WBRZ used for? The ADUM3221WBRZ is used as an isolated, 4 A dual-channel gate driver for applications such as isolated synchronous DC-to-DC converters and MOSFET/IGBT gate drivers.
- What is the input supply voltage range for the ADUM3221WBRZ? The input supply voltage range is from 3.0 V to 5.5 V.
- What are the output supply voltage ranges for the ADUM3221WBRZ? The output supply voltage ranges are from 4.5 V to 18 V for the ADuM3221A and from 7.6 V to 18 V for the ADuM3221B.
- What is the propagation delay of the ADUM3221WBRZ? The propagation delay is 60 ns.
- Does the ADUM3221WBRZ have thermal shutdown protection? Yes, it has thermal shutdown protection at temperatures greater than 150°C.
- What is the common-mode transient immunity of the ADUM3221WBRZ? The common-mode transient immunity is greater than 25 kV/μs.
- Is the ADUM3221WBRZ RoHS-compliant? Yes, it is RoHS-compliant.
- What regulatory approvals does the ADUM3221WBRZ have? It has UL recognition, CSA Component Acceptance Notice #5A, and VDE certificate of conformity DIN V VDE V 0884-10.
- Can the ADUM3221WBRZ be used in automotive applications? Yes, it is qualified for automotive applications.
- What is the package type and dimensions of the ADUM3221WBRZ? It comes in an 8-lead SOIC package with dimensions of 5 mm × 6 mm × 1.6 mm.
