onsemi NCP1362
The NCP1362 is a highly integrated primary side quasi−resonant flyback controller capable of controlling rugged and high−performance off−line power supplies. The NCP1362 operates in valley lockout quasi−resonant peak current mode control mode at high load to provide high efficiency. When the power on the secondary side starts to diminish, the controller automatically adjusts the duty−cycle then at lower load the controller enters in pulse frequency modulation at fixed peak current with a valley switching detection.| Part No. | NCP1362 |
|---|---|
| Datasheet | NCP1362 Download |
| Manufacturer |  onsemi |
| Description | Primary Side PWM Controller |
| Buy | Stock & Price |
FEATURES
● Constant Voltage Primary−Side Regulation < 5%● Constant Current Primary−Side Regulation < 5%
● LFF and BO Feature on a Dedicated Pin: BO Detection LFF for CC Regulation Improvement
● Quasi−Resonant with Valley Switching Operation
● Optimized Light Load Efficiency and Stand−by Performance
● Maximum Frequency Clamp (No Clamp, 80, 110 and 140 kHz)
● Cycle by Cycle Peak Current Limit
● Output Voltage Under Voltage and Over Voltage Protection (UVP or OVP)
● Secondary Diode or Winding Short−Circuit Protection
● Wide Operation VCC Range (up to 28 V)
● Low Start−up Current
● CS & VS/ZCD Pin Short and Open Protection
● Internal Temperature Shutdown
● Internal and Fixed Frequency Jittering for Better EMI Signature
● Dual Frozen Peak Current to Both Optimize Light Load Efficiency (10% Load) and Stand−by Performance (No−load)
● Fault Input for Severe Fault Conditions, NTC Compatible for OTP
● These are Pb−Free Devices
APPLICATIONS
● Low Power ac−dc Adapters for Routers and Set−To...
