NCP1076BBP130G

AC DC Converters, Offline Switchers Overview

The NCP1076BBP130G is an enhanced off-line switcher from onsemi, integrating a fixed-frequency current mode controller with a 700 V MOSFET. Designed for flyback topologies, it operates at a switching frequency of 130 kHz with a maximum duty cycle of 68%. The device supports a supply voltage range of 6.5 V to 20 V and features a startup voltage of 8.4 V. It provides up to 31 W of output power and includes comprehensive protection mechanisms such as current limiting, over-power, over-temperature, over-voltage, and short-circuit protection. The component is housed in a 7-PDIP package.

AC DC Converters, Offline Switchers Feature Summary

• Integrates a high-voltage 700 V MOSFET with a fixed-frequency current mode controller for compact design.
• Features dynamic self-supply (DSS) capability, eliminating the need for auxiliary windings in basic configurations.
• Includes advanced protection functions such as over-temperature, over-voltage, and short-circuit detection with auto-recovery.
• Supports frequency foldback and skip-cycle modes to optimize efficiency under light-load conditions.

AC DC Converters, Offline Switchers Applications

• Low-power offline switched-mode power supplies (SMPS)
• Flyback converter designs for consumer electronics
• Adapters and chargers requiring isolated outputs

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'B' against official datasheets to confirm pinout and functional variations compared to standard variants. Confirm RoHS compliance status and check for Product Change Notifications (PCN) regarding manufacturing site or material updates. Ensure the 7-PDIP package matches the target PCB footprint requirements before finalizing procurement decisions.

AC DC Converters, Offline Switchers Selection Notes

Select this component for applications requiring a highly integrated solution that minimizes external component count. The 130 kHz frequency allows for smaller magnetics compared to lower-frequency alternatives. Consider the 31 W power capability and the specific operating temperature range when designing thermal management strategies for the target enclosure.

AC DC Converters, Offline Switchers Part Context

This part belongs to the NCP107x series of high-voltage switchers, which are designed to simplify AC/DC conversion by combining control logic and power switching in a single package. The series offers various frequency options and power levels to suit different application needs while maintaining quiet operation through jittering and foldback techniques.

AC DC Converters, Offline Switchers Replacement Considerations

NCP1076ABP100G is listed as a manufacturer-recommended alternative within the same product family.