Product Details
●The ADuM3220/ADuM3221 are isolated, 4 A dual-channel gate drivers based on the Analog Devices, Inc., iCoupler® technology. Combining high speed CMOS and monolithic transformer technology, these isolation components provide outstanding performance characteristics superior to the alternatives, such as the combination of pulse transformers and gate drivers.
●The ADuM3220/ADuM3221 provide digital isolation in two independent isolation channels. They have a maximum propagation delay of 60 ns and 5 ns channel-to-channel matching. In comparison to gate drivers that employ high voltage level translation methodologies, the ADuM3220/ADuM3221 offer the benefit of true, galvanic isolation between the input and each output, enabling voltage translation across the isolation barrier. The ADuM3220 has shoot-through protection logic, which prevents both outputs from being on at the same time, whereas the ADuM3221 allows both outputs to be on at the same time. Both parts offer a default output low characteristic as required for gate drive applications.
●The ADuM3220/ADuM3221 operate with an input supply voltage ranging from 3.0 V to 5.5 V, providing compatibility with lower voltage systems. The outputs of the ADuM3220A/ADuM3221A can be operated at supply voltages from 4.5 V to 18 V. The outputs of the ADuM3220B/ADuM3221B can be operated at supply voltages from 7.6 V to 18 V.
●The junction temperature of the ADuM3220/ADuM3221 is specified from −40°C to +125°C.
●Applications
● Isolated synchronous dc-to-dc converters
● MOSFET/IGBT gate drivers
●### Features and Benefits
● 4 A peak output current
● Precise timing characteristics
● 60 ns maximum isolator and driver propagation delay
● 5 ns maximum channel to channel matching
● High junction temperature operation: 125°C
● 3.3 V to 5 V input logic
● 7.6 V to 18 V output drive
● Undervoltage lockout (UVLO) at 7.0 V VDD2
● Thermal shutdown protection at >150°C
● Default low output
● High frequency operation: dc to 1 MHz
● CMOS input logic levels\
● High common-mode transient immunity: 25 kV/μs
● Automotive versions qualified per AEC-Q100
● See data sheet for additional features
