NCP1680ABD1R2G

Overview

The NCP1680ABD1R2G is a mixed-signal integrated circuit designed for Totem Pole Critical Conduction Mode (CrM) Power Factor Correction. It operates within a switching frequency range of 25 kHz to 275 kHz and supports a maximum supply voltage of 30 V. Packaged in a 16-SOIC surface-mount enclosure, this automotive-grade component meets AEC-Q100 standards. It functions as a code-less controller for bridgeless topologies, eliminating the need for microcontroller programming while ensuring high efficiency across varying load conditions.

Feature Summary

• Enables code-less implementation of bridgeless Totem Pole PFC topologies by integrating control algorithms directly into the IC.
• Optimizes performance through valley turn-on in Discontinuous Conduction Mode (DCM) at light loads to prevent audible noise.
• Incorporates proprietary current sensing technology that eliminates the requirement for Hall effect sensors for cycle-by-cycle current limiting.
• Features digital voltage loop compensation and AC line monitoring circuits to maintain near-unity power factor across all operating modes.

Applications

• Offline power supplies
• Industrial power systems
• Telecommunications 5G infrastructure
• Network equipment power sources

Procurement Notes

Verify the specific suffix ABD1R2G against official onsemi documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with AEC-Q100 automotive qualification requirements if deploying in vehicle electronics. Cross-reference datasheet revisions to validate pinout integrity and electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component for designs requiring high-efficiency Totem Pole PFC without the complexity of MCU-based firmware development. It is suitable for applications demanding strict adherence to energy efficiency regulations such as CoC Tier 2. Consider its 16-SOIC footprint for space-constrained layouts and verify thermal management capabilities for the intended power density targets.

Part Context

The NCP1680 series serves as a foundational solution for low-to-medium power Totem Pole PFC applications, typically up to 300 W. It complements higher-power variants like the NCP1681, which extends capabilities to the kilowatt range. This controller simplifies design cycles by removing the software development barrier associated with traditional microcontroller-driven PFC implementations.

Replacement Considerations

Direct substitutes include other NCP1680 variants such as NCP1680AAD1R2G, provided functional parameters align with specific application requirements. Verify pin compatibility and electrical specifications before swapping components to ensure system stability.