Recommended parameters of junction box for reasonable application of HL202

When the external capacitor C. is connected to pin 9 of HL202. When it is 䉉047pF, the delay time of the desaturation protection action is 3Fes, that is, 3ps after the
driven power transistor desaturates .
HL202 can automatically block the forward drive current and desaturate the action.
The delay time changes in proportion to the capacity of capacitor C. C. The larger the value, the longer the delay time
. If the inrush current when the driven power transistor is turned on is large,
the dead time should be appropriately extended.
    (2) The desaturation protection threshold level is 5v when pin
16 is left floating. When the desaturation protection level needs to be changed, an external potentiometer is required to change the level of pin 16.
    (3) The inductor L connected to pin
18 is about a few microhenries. Choosing an appropriate inductance value can optimize the turn-off process of the driven power transistor
and avoid oscillation of the base current of the driven power transistor.