ML4822CSX

Overview

The ML4822CSX is a Zero Voltage Switching (ZVS) Average Current Mode Power Factor Correction (PFC) controller manufactured by Fairchild Semiconductor. It integrates a PFC controller with a post-regulator, supporting both voltage-mode and pulse-width modulation control techniques. The device operates within an input voltage range of 11 V to 12.8 V, with a nominal input of 11.8 V. It is housed in a 16-lead SOIC package (SOP16,.4) compliant with JEDEC MS013 standards. The component is lead-free and RoHS compliant, designed for efficient power factor correction applications.

Feature Summary

• Implements Zero Voltage Switching (ZVS) average current mode control for enhanced efficiency
• Integrates PFC controller functionality with a dedicated post-regulator
• Supports configurable operation in current mode alongside standard voltage-mode control

Applications

• Power factor correction circuits in AC-DC power supplies
• Systems requiring integrated post-regulation capabilities
• Efficiency-optimized power management designs

Procurement Notes

Verify the manufacturer origin, as Fairchild Semiconductor was acquired by ON Semiconductor. Confirm the specific suffix 'CSX' matches the required package and tape-and-reel configuration. Ensure the component meets current RoHS compliance requirements and check for any obsolescence notices or alternative sourcing options from authorized distributors.

Selection Notes

Select this component when ZVS average current mode control is required for high-efficiency PFC designs. Consider the integrated post-regulator feature if system complexity needs reduction. Verify that the 16-lead SOIC package fits the PCB layout constraints. Ensure the operating temperature range and input voltage specifications align with the target application environment.

Part Context

The ML4822CSX belongs to the ML4822 series of PFC controllers. Following the acquisition of Fairchild Semiconductor by ON Semiconductor, related products may be referenced under the onsemi brand. This component is part of a broader portfolio of power management ICs designed for improving power quality and efficiency in electronic systems.

Replacement Considerations

The FAN4822IMX from onsemi is a functional equivalent within the same product family. Verify pin compatibility and electrical parameter alignment before substitution.