How to select a suitable high voltage MOSFET for the application that current flows in the body diode.

Select products with short inverse recovery time trr, low peak reverse recovery current Irr, and low forward voltage VF.

Due to the circuit operation of the bridging circuit, there is a mode in which Q2 is turned on while a return current is flowing to Q1 diode. (Fig. 1-①).
At this time, Q1 diode enters the reverse-recovery operation, but during this time, Q1 and Q2 are short-circuited (Fig. 1-②), causing a large drop (Fig. 1).
The reverse recovery time of body diodes tends to be longer for high-voltage products than for low-voltage products, but we offer a lineup of high-speed diodes with a shorter reverse recovery time for high-voltage products.
Please select the product group with the suffix "5" (e.g. TK16A60W5).

Fig. 1: Reverse recovery current
Fig. 1: Reverse recovery current
Fig. 2: Comparison waveform of reverse recovery current between high-speed diode products and normal products
Fig. 2: Comparison waveform of reverse recovery current between high-speed diode products and normal products

Please confirm the product lineup.

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