ADI ADUM3220ARZ

The ADuM3220/ADuM3221 are 4 A isolated dual-channel gate drivers based on iCoupler technology. These isolated devices integrate high-speed CMOS with monolithic transformer technology, offering superior performance characteristics over alternatives such as discrete pulse transformer and gate driver combinations. The ADuM3220/ADuM3221 provide digital isolation in two independent isolated channels. They feature a maximum propagation delay of 60 ns and 5 ns channel-to-channel matching. Compared to gate drivers using high-voltage level-shifting approaches, the ADuM3220/ADuM3221 offer true galvanic isolation between the input and each output, enabling voltage translation across the isolation barrier. The ADuM3220 incorporates shoot-through protection logic to prevent both outputs from being enabled simultaneously, while the ADuM3221 allows both outputs to be enabled at the same time. Both devices provide default output low characteristics, which is essential for gate drive applications. The ADuM3220/ADuM3221 operate with an input supply voltage range of 3.0 V to 5.5 V, ensuring compatibility with lower voltage systems. The ADuM3220A/ADuM3221A operate with an output supply voltage of 5 V to 18 V. The ADuM3220B/ADuM3221B operate with an output supply voltage of 8 V to 18 V. The ADuM3220/ADuM3221 are specified over a junction temperature range of -40°C to +125°C.

• Peak output current: 4 A
• Precise timing characteristics: isolator and driver propagation delay: 60 ns (maximum); channel-to-channel matching: ±5 ns (maximum)
• Operating junction temperature up to: 125°C
• 3.3 V to 5 V input logic
• 4.5 V to 18 V output drive
• UVLO: 2.5 V VDD1; ADuM3220A/ADuM3221A UVLO: 4.1 V VDD2; ADuM3220B/ADuM3221B UVLO: 7.0 V VDD2
• Thermal shutdown protection above 750°C
• ADuM3220 output shoot-through logic protection
• Default low output
• High operating frequency: DC to 1 MHz
• CMOS input logic levels
• High common-mode transient immunity: >25 kV/μs
• Enhanced system-level ESD protection performance, compliant with IEC 61000-4-x
• UL 1577 2500 V rms input-to-output withstand voltage (pending)
• Thin, compact 8-lead narrow-body SOIC package, RoHS compliant, 5 mm × 6 mm × 1.6 mm

• Isolated synchronous DC/DC converter
• MOSFET/IGBT gate driver