ADI ADUM3224WBRZ

The ADuM3224/ADuM4224 are 4 A isolated half-bridge gate drivers that use iCoupler technology to provide independent and isolated high-side and low-side outputs. The ADuM3224 offers 3000 V rms isolation in a narrow-body 16-lead SOIC package, while the ADuM4224 offers 5000 V rms isolation in a wide-body 16-lead SOIC package. These isolated devices integrate high-speed CMOS with monolithic transformer technology, delivering superior performance characteristics over alternative solutions such as pulse transformer and gate driver combinations. The ADuM3224/ADuM4224 isolators each provide two independent isolated channels. These devices operate from a 3.0 V to 5.5 V supply voltage, ensuring compatibility with low-voltage systems. Compared to gate drivers that use high-voltage level-shifting methods, the ADuM3224/ADuM4224 offer true galvanic isolation between the input and each output. Each output can sustain a continuous operating voltage of up to 560 V peak relative to the input, enabling low-side switching to negative voltages. The differential voltage between the high side and low side can reach up to 800 V peak. As a result, the ADuM3224/ADuM4224 can reliably control the switching characteristics of IGBT/MOSFET configurations across a wide range of positive or negative switching voltages.

• Peak output current: 4 A
• High-side or low-side operating voltage relative to input: 565 V peak
• High operating frequency: 1 MHz (maximum)
• 3.3 V to 5 V CMOS input logic
• 4.5 V to 18 V output drive
• Secondary UVLO ADuM3224A/ADuM4224A UVLO: 4.1 V VDDA/VDDB ADuM3224B/ADuM4224B UVLO: 6.9 V VDDA/VDDB ADuM3224C/ADuM4224C UVLO: 10.5 V VDDA/VDDB
• Precision timing characteristics isolator and driver propagation delay: 59 ns (maximum) channel-to-channel matching: 5 ns (maximum)
• CMOS input logic levels
• High common-mode transient immunity: >25 kV/µs
• Enhanced system-level ESD protection, compliant with IEC 61000-4-x
• Maximum operating junction temperature: 125°C
• Default output low
• Safety and regulatory certifications (pending) ADuM3224: narrow-body 16-lead SOIC package UL 1577 3000 V rms input-to-output withstand voltage ADuM4224: wide-body 16-lead SOIC package UL 1577 5000 V rms input-to-output withstand voltage
• Automotive qualified

• Switching power supplies
• Isolated IGBT/MOSFET gate drivers
• Industrial inverters