ML4800CSX_NL

Overview

The ML4800CSX_NL is a Power Factor Correction (PFC) controller and PWM combo IC manufactured by onsemi. It integrates average current mode PFC control with voltage-mode PWM regulation in a single package. The device operates within an input voltage range of 10.8 V to 16.5 V, with a nominal supply of 15 V. It utilizes Pulse Width Modulation (PWM) technology for control. The component is housed in a 16-pin SOIC package, specifically identified as SOP-16 or JEDEC MS-012 narrow body format. It supports through-hole or surface-mount installation depending on the specific variant suffix, though the CSX designation typically indicates a tape and reel SOIC configuration.

Feature Summary

• Integrates average current mode PFC controller with voltage-mode PWM regulator
• Supports combined power factor correction and post-regulation functions
• Operates using pulse width modulation control technology

Applications

• Power supplies requiring combined PFC and DC-DC conversion
• Average current mode controlled power factor correction circuits
• Voltage-mode regulated power supply designs

Procurement Notes

Verify the exact package type and termination style against the datasheet, as the CSX suffix denotes a specific SOIC tape-and-reel configuration distinct from other variants like CP or C. Confirm RoHS compliance status directly with the manufacturer documentation, as legacy parts may have specific material declarations. Ensure the design accounts for the specified 10.8 V to 16.5 V operating input voltage range for the control circuitry.

Selection Notes

Select this component when a single IC solution for both PFC and PWM stages is required to reduce board space and component count. The average current mode operation offers improved line regulation compared to peak current mode. Verify that the 16-pin SOIC footprint matches the PCB layout constraints and that the thermal dissipation capabilities of the package are sufficient for the intended power level.

Part Context

This part belongs to the ML4800 series of PFC controllers. It is related to the ML4800CP and ML4800CSX variants, differing primarily in packaging and shipping format. The ML4800 series is designed for high-performance power factor correction applications, combining two control loops into one chip to simplify design and improve efficiency in AC-DC conversion systems.

Replacement Considerations

The FAN4800AUN is listed as a potential replacement option. Verify pinout compatibility and electrical specifications before substitution. Other ML4800 family members may serve as alternatives if packaging differences are acceptable.