NCP1207A
feature is particularly useful in applications where the output voltage varies during operation (e.g. battery chargers). Due to its high- voltage technology, the IC is directly connected to the high- voltage DC rail. As a result, the short- circuit trip point is not dependent upon any VCC auxiliary level.
The transformer core reset detection is done through an auxiliary winding which, brought via a dedicated pin, also enables fast Overvoltage Protection (OVP). Once an OVP has been detected, the IC permanently latches off.
Finally, the continuous feedback signal monitoring implemented with an overcurrent fault protection circuitry (OCP) makes the final design rugged and reliable.
Features
- Free- Running Borderline/Critical Mode Quasi- Resonant Operation
- Current- Mode with Adjustable Skip- Cycle Capability
- No Auxiliary Winding VCC Operation
- Auto- Recovery Overcurrent Protection
- Latching Overvoltage Protection
- External Latch Triggering, e.g. Via Overtemperature Signal
- 500 m A Peak...
