ML4823CQX

Power Supply Controllers, Monitors Overview

The ML4823CQX is an average current mode Power Factor Correction (PFC) controller manufactured by onsemi, formerly Fairchild Semiconductor. It operates at a fixed switching frequency of 76 kHz and utilizes a 16-pin SOIC package. The device supports a supply voltage range of 10.5 V to 13.2 V and functions within an operating temperature range of 0°C to 70°C. Key electrical parameters include a startup current of 700 µA. This component is designed for high-efficiency power factor correction applications in power supplies.

Power Supply Controllers, Monitors Feature Summary

• Implements average current mode control for precise power factor correction
• Integrates fixed-frequency operation at 76 kHz for simplified design
• Features robust protection mechanisms inherent to the PFC controller architecture

Power Supply Controllers, Monitors Applications

• Power factor correction stages in AC-DC converters
• Universal input power supply designs
• Industrial power management systems

Power Supply Controllers, Monitors Procurement Notes

Verify the part status carefully as the ML4823CS2 variant is listed as obsolete in distributor records. Confirm availability through authorized channels or last-time-buy notifications. Ensure the specific suffix matches the required package and temperature grade. Cross-reference with official manufacturer documentation to confirm functional equivalence before procurement.

Power Supply Controllers, Monitors Selection Notes

Select this component for applications requiring average current mode PFC control with a fixed 76 kHz switching frequency. Consider the 16-SOIC package constraints and the 0°C to 70°C operating temperature range. Evaluate the 10.5 V to 13.2 V supply voltage requirements against the system's auxiliary power capabilities. Compare against newer generations if long-term supply stability is critical.

Power Supply Controllers, Monitors Part Context

The ML4823 series belongs to onsemi's portfolio of power factor correction controllers. These devices are engineered to improve efficiency and reduce harmonic distortion in power conversion systems. The ML4823 specifically targets average current mode applications, offering a balance between performance and complexity for standard PFC implementations.

Power Supply Controllers, Monitors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data.