Hello,
Our customer asked about SYNCOUT wave of of on channel is extended condition which is high side on time extend over the switching frequency specifying in the datasheet in below.
Under low VIN conditions when either of the on-time of the high-side MOSFETs exceeds the programmed oscillator period, the LM5143-Q1 extends the switching period of that channel until the PWM latch is reset by the current sense ramp exceeding the controller compensation voltage. In such an event, the oscillators (CLK1 and CLK2) operate independently and asynchronously until both channels can maintain output regulation at the programmed frequency.
Could you tell me how SYNCOUT is function in extended operation in one channel.
best regards,
