NCP1340B9D1R2G

AC DC Converters, Offline Switchers Overview

The NCP1340B9D1R2G is a high-performance power factor correction (PFC) controller designed for continuous conduction mode (CCM) boost applications. It integrates a fixed-frequency current-mode control architecture with advanced features such as cycle-by-cycle peak current limiting, soft-start, and brown-out protection. The device operates from a wide supply voltage range and includes an internal oscillator with external synchronization capability. Key electrical parameters include a switching frequency up to 150 kHz, a reference voltage of 1.25 V, and a maximum duty cycle limit. It supports universal AC input voltages and provides precise regulation for efficient energy conversion in offline power supplies.

AC DC Converters, Offline Switchers Feature Summary

• Integrated CCM PFC controller with cycle-by-cycle peak current limiting
• Fixed-frequency operation with external synchronization capability
• Built-in soft-start and brown-out protection functions
• Wide operating supply voltage range for universal AC input compatibility

AC DC Converters, Offline Switchers Applications

• Offline power supplies for consumer electronics
• LED lighting drivers requiring high power factor
• Computer and telecom power supplies
• Industrial power conversion systems

AC DC Converters, Offline Switchers Procurement Notes

Verify the exact ordering suffix matches your design requirements, as variations may exist in packaging or temperature grade. Confirm that the component is sourced from authorized onsemi distributors to ensure authenticity. Check the latest datasheet revision for any updates to pinout or electrical characteristics before finalizing the bill of materials.

AC DC Converters, Offline Switchers Selection Notes

Select this controller for applications requiring high-efficiency PFC with simple implementation. Ensure the external components support the required switching frequency and current limits. Consider thermal management needs based on the expected load conditions and ambient temperature. Verify compatibility with the target output voltage and input line specifications.

AC DC Converters, Offline Switchers Part Context

This part belongs to onsemi's NCP1340 family of PFC controllers, which are optimized for cost-effective and reliable power factor correction solutions. The family offers various options tailored for different power levels and application constraints, providing designers with flexible choices for meeting regulatory standards.

AC DC Converters, Offline Switchers Replacement Considerations

Direct replacements within the same family should be verified against the specific ordering suffixes for package and temperature range compatibility. Cross-referencing with other manufacturers requires careful evaluation of pin-to-pin compatibility and electrical parameter alignment.