Analog Devices: EVAL-ADUM3223AEBZ Evaluation Board for the ADuM3223/ADuM4223 iCoupler Isolated Precision Half-Bridge Drivers

Kit Overview

The Analog Devices EVAL-ADuM3223AEBZEVAL-ADuM3223AEBZ and EVAL-ADuM4223AEBZ support the ADuM3223ADuM3223 and ADuM4223ADuM4223 isolated precision half-bridge drivers, respectively. Because the evaluation boards have footprints for IGBTs and MOSFETs in TO-263 or TO-252 packages, the ADuM3223 and ADuM4223 can be evaluated with many different power devices. The evaluation boards also allow the high-side supply to be bootstrapped to the low-side supply.

The ADuM3223AADuM3223A model represents a superset of the ADuM3223 models because it has the lowest minimum output voltage (4.5 V). The ADuM3223BADuM3223B and ADuM3223CADuM3223C models have minimum out-put voltages of 7.5 V and 11.5 V, respectively. In the same way, the ADuM4223AADuM4223A model represents a superset of the ADuM4223 models.

The ADuM3223ADuM3223/ADuM4223ADuM4223 are 4 A isolated, half-bridge gate drivers that employ the Analog Devices, Inc., iCoupler technology to provide independent and isolated high-side and low-side outputs. The ADuM3223 provides 3000 V rms isolation in the narrow body, 16-lead SOIC package, and the ADuM4223 provides 5000 V rms isolation in the wide body, 16-lead SOIC package. 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 ADuM3223ADuM3223/ADuM4223ADuM4223 isolators each provide two independent isolated channels. They operate with an input supply ranging from 3.0 V to 5.5 V, providing compatibility with lower voltage systems. In comparison to gate drivers employing high voltage level translation methodologies, the ADuM3223/ADuM4223 offer the benefit of true, galvanic isolation between the input and each output. Each output may be continuously operated up to 560 V peak relative to the input, thereby supporting low-side switching to negative voltages. The differential voltage between the high-side and low-side may be as high as 800 V peak..

Key Applications: Switching power supplies, Isolated IGBT/MOSFET gate drives, Industrial inverters