In order to ensure stable operation even when a large dV/dt is applied between the input and output of the photocoupler when the IPM is switched, the photo IC chip has a shield.
The highest class guarantees ±30 kV/μs (minimum) common mode transient immunity and is suitable for IPM control signal interfaces.
TLP2745 has a Faraday shield at the photo IC chip and has a high-common-mode transient resistance of ±30 kV/μs (minimum).
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