IVCC1104GDR

Overview

The IVCC1104GDR is a CCM Totem-Pole PFC controller manufactured by Inventchip. It operates with a supply voltage of 4.75V to 5.25V and supports an operating temperature range of -40°C to 125°C. The device is housed in a QFN 4x4 20L package and utilizes surface mount installation. It complies with RoHS3 standards and has a Moisture Sensitivity Level (MSL) of 1.

Feature Summary

• Implements average current mode control for high-efficiency power factor correction
• Features automatic anti-current-backflow protection during AC power loss
• Provides optimized zero-crossing control to minimize total harmonic distortion

Applications

• Server power supplies
• High-power density chargers
• Industrial equipment power systems

Procurement Notes

Verify the specific suffix against official Inventchip documentation, as variations such as GF4AR indicate distinct packaging or reel configurations. Confirm that the GDR designation aligns with the required QFN 4x4 20L package and standard commercial availability status before finalizing procurement plans.

Selection Notes

Select this component for designs requiring analog control simplicity without digital programming. It is suitable for applications utilizing GaN or SiC switches where compact footprint and reduced development time are priorities. Ensure input voltage sampling circuits adhere to strict capacitance limits to maintain accurate zero-crossing detection.

Part Context

This controller belongs to the IVCC110x series of analog图腾柱PFC controllers. It is designed to simplify hardware design by integrating essential functions like input voltage sampling and over-zero detection directly into the chip, reducing external component count compared to digital alternatives.

FAQ

How should the input voltage sampling capacitors be sized?

Capacitors near pins 5 and 6 must be kept below 100pF, ideally around 20pF, to prevent filtering out switching ripples and ensure accurate zero-crossing detection.

What is the recommended crossover frequency for the current loop?

The current loop crossover frequency should generally be set near 1kHz to achieve optimal current following performance using typical PI regulation parameters.