ADuM3223The active-low ADuM4223 is a 4 A isolated half-bridge gatedriveUsing Analog Devices' iCoupler® technology, which provides independent and isolated high-side and low-side outputs. The ADuM3223 provides 3000 V rms isolation in a narrow 16-lead SOIC package, while the ADuM4223 provides 5000 V rms isolation in a wide 16-lead SOIC package. These isolation devices combine high-speed CMOS with monolithic transformer technology and have excellent performance characteristics over alternative devices such as pulse transformer and gate driver combinations.
The ADuM3223/ADuM4223 isolators each provide two independent isolation channels. These devices operate from a supply voltage of 3.0 V to 5.5 V and are compatible with low voltage systems. The ADuM3223/ADuM4223 offer true galvanic isolation between the input and outputs compared to gate drivers using high voltage level shifting. Each output can operate continuously up to 565 V relative to the inputsPEAK, thus allowing low-side switching to negative voltage. Differential voltages between the high and low sides can be up to 800 VPEAK。
As a result, the ADuM3223/ADuM4223 can reliably control the switching characteristics of IGBT/MOSFET configurations over a wide range of positive or negative switching voltages.
apply
- Switching power supply
- Isolated IGBT/MOSFET gate drivers
- Industrial inverters