onsemi NCP1340
The NCP1340 is a highly integrated quasi-resonant flyback controller suitable for designing high-performance off-line power converters. With an integrated active X2 capacitor discharge feature, the NCP1340 can enable no-load power consumption below 30 mW. The NCP1340 features a proprietary valley-lockout circuitry, ensuring stable valley switching.| Part No. | NCP1340 |
|---|---|
| Datasheet | NCP1340 Download |
| Manufacturer |  onsemi |
| Description | Controller Featuring Valley Lock-Out Switching |
| Buy | Stock & Price |
FEATURES
● Integrated High-Voltage Startup Circuit with Brownout Detection● Integrated X2 Capacitor Discharge Capability
● Wide VCC Range from 9 V to 28 V
● 28 V VCC Overvoltage Protection
● Abnormal Overcurrent Fault Protection for Winding Short Circuit or Saturation Detection
● Internal Temperature Shutdown
● Valley Switching Operation with Valley-Lockout for Noise-Free Operation
● Frequency Foldback with 25 kHz Minimum Frequency Clamp for Increased Efficiency at Light Loads
● Skip Mode with Quiet-Skip Technology for Highest Performance During Light Loads
● Minimized Current Consumption for No Load Power Below 30 mW
● Frequency Jittering for Reduced EMI Signature
● Latching or Auto-Recovery Timer-Based Overload Protection
● Adjustable Overpower Protection (OPP)
● Fixed or Adjustable Maximum Frequency Clamp
● Fault Pin for Severe Fault Conditions, NTC Compatible for OTP
● 4 ms Soft-Start Timer MARKING DIAGRAM 9 1340xz ALYW G 1 1340xz = Specific Device Code x = A or B z = 1, 2, 3, 4,...
