NCP1397B Overview
Pin # Pin Name Function 1 CSS(dis) Soft−Start Discharge 2 Fmax Maximum frequency clamp 3 Ctimer Timer duration 4 Rt Minimum frequency.
NCP1397B Key Features
- High-Frequency Operation from 50 kHz up to 500 kHz
- 600 V High-Voltage Floating Driver
- Adjustable Minimum Switching Frequency with 3% Accuracy
- Adjustable Deadtime from 100 ns to 2 ms
- Startup Sequence Via an Externally Adjustable Soft-Start
- Brown-Out Protection for a Simpler PFC Association
- Latched Input for Severe Fault Conditions, e.g. Over Temperature
- Timer-Based Input with Auto-Recovery Operation for Delayed
- Latched Overcurrent Protection
- Disable Input for Immediate Event Reaction or Simple ON/OFF