ANALOG DEVICES INC. ADuM4221 Isolated Half Bridge Gate Drivers | New Product BriefNovember 28, 2020 by Mouser Electronics
This New Product Brief (NPB) is part of a video series highlighting the features, applications, and technical specs of newly-released products.
ANALOG DEVICES INC. ADuM4221 Isolated Half Bridge Gate Drivers
Analog Devices’ ADuM4221 isolated half-bridge gate driver provides true galvanic isolation between the input and each output and simplifies the implementation of switching power supplies, industrial inverters, and other half-bridge applications.
The ADuM4221 uses ADI’s iCoupler chip-scale transformer technology to provide 5700VRMS isolation and precise timing. The logic input side accepts CMOS inputs and operates from a 2.5V to 6.5V supply for compatibility with lower voltage systems, while the output supply voltage ranges from 4.5V to 35V. The drivers can output a 4A peak current and have built-in overlap protection as well as adjustable dead time control.
The ADuM4221 has integrated thermal shutdown and undervoltage lockout protections, and is housed in a wide body SOIC package with increased creepage.
- True galvanic isolation between the input and each output
- UL1577 recognized: 5700 VRMS, 1 minute
- Logic input voltage: 2.5V to 6.5V
- CMOS input logic levels
- Compatible with low voltage systems
- Output supply voltage: 4.5V to 35V
- Gate drive current: 4A peak (<2Ω RDSON_x)
- Built-in overlap protection
- Adjustable dead time
- Protections: UVLO, Thermal Shutdown
- Logic side positive going threshold: 2.5V maximum
- Output supply positive going threshold: 4.5V, 7.5V, or 11.6V maximum
- Package: Increased creepage wide body, 16-lead SOIC_IC
- Creepage: 8.3mm
- Clearance: 8.3mm
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