NCP1937 Description
bination Power Factor Correction and QuasiResonant Flyback Controllers for Adapters NCP1937 This bination IC integrates power factor correction (PFC) and quasi−resonant flyback functionality necessary to implement a pact and highly efficient Switched Mode Power Supply for an adapter application. The PFC stage exhibits near−unity power factor while operating in a Critical Conduction Mode (CrM) with a maximum...
NCP1937 Key Features
- Wide VCC Range from 9 V to 30 V with Built-in Overvoltage
- High-Voltage Startup Circuit and Active Input Filter Capacitor
- Integrated High-Voltage Brown-Out Detector
- Integrated High-Voltage Switch Disconnects PFC Feedback Resistor
- Fault Input for Severe Fault Conditions, NTC patible (Latch and
- 0.5 A / 0.8 A Source / Sink Gate Drivers
- Internal Temperature Shutdown
NCP1937 Applications
- Critical Conduction Mode with Constant On Time Control (Voltage
- Accurate Overvoltage Protection