ZHCSMC4A june 2020 – october 2020 UCC23514
PRODUCTION DATA
The active Miller-clamp function is used to prevent false turn on of the power switches caused by Miller current in applications where a unipolar power supply is used. The active Miller-clamp function is implemented by adding a low impedance path between the power-switch gate terminal and ground (VEE) to sink the Miller current. The Miller clamping function is implemented by adding a low impedance path between the gate of the power device and the VEE supply. Miller current sinks through the clamp pin, which clamps the gate voltage to be lower than the gate turn-on threshold value for the power device. The clamp engages whenever the voltage at the CLAMP pin goes below VCLMPTH.