NCP1339 Description
NCP1339 High-Voltage, QuasiResonant Controller featuring Valley Lock-Out and Power Saving Mode The NCP1339 is a highly integrated quasi−resonant flyback controller capable of controlling rugged and high−performance off−line power supplies as required by adapter applications. With an integrated active X−cap discharge.
NCP1339 Key Features
- High-voltage Current Source for Lossless Start-up Sequence
- X2 Capacitors Discharge Capability
- Power Savings Mode (PSM) for Extremely Low No-Load Power
- Wide VCC Range from 10 V to 28 V
- Latching-off 28-V VCC Over-Voltage Protection
- Abnormal Overcurrent Fault Protection for Winding Short Circuit or
- Integrated High-Voltage Startup Circuit with Brown-Out Detection
- Fault Input for Severe Fault Conditions, NTC patible for OTP
- Circuit Latching Off In Severe Fault Detection (OVP or OTP)
- Internal Temperature Shutdown
NCP1339 Applications
- High−voltage Current Source for Lossless Start−up Sequence