Overview
The ADuM3220WARZ from Analog Devices Inc. is an isolated, 4 A dual-channel gate driver based on the iCoupler® technology. This component combines high-speed CMOS and monolithic transformer technology to provide superior performance characteristics compared to traditional alternatives such as pulse transformers and gate drivers. The ADuM3220 offers true galvanic isolation between the input and each output, enabling voltage translation across the isolation barrier. This makes it ideal for applications requiring high reliability and safety standards.
Key Specifications
| Parameter | Value |
|---|---|
| Driver Type | Isolated Gate Driver |
| Number of Drivers | 2 |
| Peak Output Current | 4 A (Typ) |
| Maximum Rise Time | 20 ns (Typ) |
| Maximum Fall Time | 20 ns (Typ) |
| Maximum Operating Frequency | 1000 kHz |
| Maximum Propagation Delay Time | 50 ns (Typ) |
| Minimum Operating Supply Voltage | 3 V |
| Maximum Operating Supply Voltage | 5.5 V |
| Output Drive Voltage Range | 4.5 V to 18 V (A version), 7.6 V to 18 V (B version) |
| Junction Temperature Range | -40°C to +125°C |
| Package/Case | SOIC-8 |
| Pin Count | 8 |
| ESD Protection | Yes |
| AEC-Q100 Qualified | Yes |
| Automotive Qualified | Yes |
Key Features
- Precise timing characteristics with a maximum propagation delay of 60 ns and 5 ns channel-to-channel matching.
- High-speed CMOS and monolithic transformer technology for superior performance.
- True galvanic isolation between the input and each output, enabling voltage translation across the isolation barrier.
- High junction temperature operation up to 125°C.
- CMOS input logic levels compatible with 3.3 V to 5 V systems.
- Output drive capability from 4.5 V to 18 V (A version) and 7.6 V to 18 V (B version).
- Thermal shutdown protection at >150°C and output shoot-through logic protection on the ADuM3220.
- High common-mode transient immunity: >25 kV/μs.
- Enhanced system-level ESD performance per IEC 61000-4-x.
- Safety and regulatory approvals including UL recognition, CSA Component Acceptance Notice, and VDE certificate of conformity.
Applications
- Isolated synchronous dc-to-dc converters.
- MOSFET/IGBT gate drivers.
- Automotive applications requiring high reliability and isolation.
Q & A
- Q: What is the ADuM3220WARZ used for?
A: The ADuM3220WARZ 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.
- Q: What is the maximum output current of the ADuM3220WARZ?
A: The maximum peak output current of the ADuM3220WARZ is 4 A.
- Q: What is the operating supply voltage range for the ADuM3220WARZ?
A: The input supply voltage range is from 3.0 V to 5.5 V.
- Q: What are the output drive voltage ranges for the ADuM3220WARZ?
A: The output drive voltage ranges are from 4.5 V to 18 V for the A version and from 7.6 V to 18 V for the B version.
- Q: Does the ADuM3220WARZ have thermal shutdown protection?
A: Yes, the ADuM3220WARZ has thermal shutdown protection at temperatures greater than 150°C.
- Q: Is the ADuM3220WARZ qualified for automotive applications?
A: Yes, the ADuM3220WARZ is qualified for automotive applications and meets AEC-Q100 standards.
- Q: What is the package type of the ADuM3220WARZ?
A: The ADuM3220WARZ comes in an SOIC-8 package.
- Q: Does the ADuM3220WARZ have ESD protection?
A: Yes, the ADuM3220WARZ has enhanced system-level ESD performance per IEC 61000-4-x.
- Q: What are the safety and regulatory approvals for the ADuM3220WARZ?
A: The ADuM3220WARZ has UL recognition, CSA Component Acceptance Notice, and VDE certificate of conformity.
- Q: What is the warranty period for the ADuM3220WARZ purchased from authorized distributors?
A: The warranty period is typically 1 year, covering any defects in materials and workmanship under normal use.
