Analog Devices Inc. ADuM7223 Isolated Precision Half-Bridge Driver
Analog Devices Inc. ADuM7223 Isolated Precision Half-Bridge Driver features 4.0A isolated, half-bridge gate drivers designed using ADI's iCoupler® technology to provide independent and isolated high-side and low-side outputs. Combining high-speed CMOS and monolithic transformer technology, these isolation components offer outstanding performance characteristics superior to alternatives such as the combination of pulse transformers and non-isolated gate drivers.
Featuring two independent isolation channels, ADuM7223 operates with an input supply ranging from 3V to 5.5V, providing compatibility with lower voltage systems. The outputs operate in a wide range from 4.5V to 18V with three output voltage versions available.
ADuM7223 offers the benefit of true, galvanic isolation between the input and each output. As a result, these gate drivers provide reliable control over the switching characteristics of IGBT/MOSFET configurations over a wide range of positive or negative switching voltages.
The 5mm×5mm, LGA package provides 565V operating voltage from input to output and 700V from output to output. By integrating the isolator and driver in a single package, propagation delay is a maximum of only 64ns, and the propagation skew from channel to channel is a maximum of only 12ns at 12V.
Features
- 4.0A peak output current
- Working voltage
- 565V peak High-side or low-side relative to input
- 700V peak High-side to low-side differential
- 1MHz Maximum high-frequency operation
- Precise timing characteristics
- 64ns maximum propagation delay
- 8.5ns maximum channel-to-channel matching
- 3.0V to 5.5V input voltage
- 4.5V to 18V output drive
- UVLO supply at 2.8V VDD1
- A Version UVLO, VDDA and VDDB (VDD2) at 4.1V
- CMOS input logic levels
- >25kV/μs High common-mode transient immunity
- 125°C High junction temperature operation
- Default low output
- 5mm × 5mm, 13-terminal LGA
Applications
- Switching power supplies
- Isolated IGBT/MOSFET gate drives
- Industrial inverters
Evaluation Board
Analog Devices Inc. EVAL-ADuM7223EBZ Evaluation Board
Used to evaluate the the ADuM7223 4A, isolated precision half bridge driver.
Additional Resources
Functional Block Diagram
