ROHM Semiconductor - ROHM Co., Ltd.

ROHM FAQ

FAQ's

What method can be used to ascertain the rising and falling frequency bands of the input current due to switching?
- The current flowing to the drain of the switching transistor (MOSFET) must be measured directly, to measure the rise and fall times. If the purpose is to eliminate noise, check for voltage ringing waveforms at the switching pin, and choose a capacitor that can lower the resonance frequency.