Can ship immediately
Due to market price fluctuations,if you need to purchase or consult the price.You can contact us or emial to us: brenda@hongda-ic.com
1. Describe
NCP1250BP65G is a highly integrated PWM controller that can Provide rugged, high-performance offline power supply Miniature TSOP-6 or PDIP-8 package. The power supply range is up to 28 V, Controller with dithering 65 kHz or 100 kHz switching circuit Run under peak current mode control. When the power is on The secondary side begins to descend, and the controller automatically folds Reduce its switching frequency to the lowest level of 26 kHz. As The power further drops, and some of them enter a jumping period, while limiting Peak current. Over power protection (OPP) is a difficult task, especially when No-load standby requires drive converter specifications. This ON’s proprietary integrated OPP allows you to take full advantage of Provide power without affecting standby performance Pass two external resistors. The overvoltage protection input is also Combine on the same pin to protect the entire circuit when the following situations occur Optocoupler failure or unfavorable open loop operation. Finally, timer-based short-circuit protection provides the best The protection scheme allows you to accurately select the protection trip point No consideration of loose coupling between auxiliary equipment and power supply Winding.
2. Features
1. Fixed−Frequency 65 or 100 kHz Current−Mode Control Operation
2. Internal and Adjustable Over Power Protection (OPP) Circuit
3. Frequency Foldback Down to 26 kHz and Skip−Cycle in Light Load Conditions
4. Internal Ramp Compensation
5. Internal Fixed 4 ms Soft−Start
6. 100 ms Timer−Based Auto−Recovery Short−Circuit Protection
7. Frequency Jittering in Normal and Frequency Foldback Modes
8. Option for Auto−Recovery or Latched Short−Circuit Protection
9. OVP Input for Improved Robustness
10. Up to 28 V VCC Operation
11. +300 mA/−500 mA Source/Sink Drive Capability
12. Less than 100 mW Standby Power at High Line
13. EPS 2.0 Compliant
14. These are Pb−Free Devices
3. Applications
1. ac−dc Converters for TVs, Set−top Boxes and Printers
2. Offline Adapters for Notebooks and Netbooks
4. Pin configuration
5. Pin description
6. Package Size
