#Ir2110 mosfet driver circuit diagram driver

#Ir2110 mosfet driver circuit diagram driver

Therefore it is immensely important that the driver keeps the gate really low impedance!Д«ecause some datasheets today are 'glossed over' for market strategic reasons or important properties are unclearly presented, one could also test the immunity oneself.

This can cause the switching transistor to switch on undesirably and cause a bang. Interferences occurring in the device or field can, for example, bring additional charge to the gate via the parasitic mill capacity (from drain to source). Does the MOSFET gate driver have any influence in the case of disturbances? Many power supply manufacturers have to tickle out the last cent and of course, decide - for the cheaper version! After all, nothing broke during the endurance test. It is your decision whether these additional costs justify a higher reliability. I don't need to mention that this type is much more expensive. Only after mass production will these unfavorable combinations occur and lead to 'inexplicable' failures, if you are very lucky already in the final test, but mostly only with the customer in his device.Дriver B would be much better suited, since 'low' means max.

With driver, A 'low' means 1.5 V in the worst-case - hard to believe but true! This would be suitable for driving FET C, but with the other two FETs A and B, the switching transistor does not lock properly in the off state!ДЄs I said, this is in the worst case, which is so rare that it probably doesn't occur during development.

Figure 4 shows an example of the corresponding data sheet extracts from two different gate driver ICs.