ML4800CP

Overview

The ML4800CP is a Power Factor Correction (PFC) controller manufactured by onsemi and distributed by Rochester Electronics. It operates as a PWM PFC Combo device in a PDIP-16 through-hole package. The component supports a switching frequency of 81 kHz and functions within an operating temperature range of -65°C to +150°C. It draws a typical operating supply current of 200 uA. This part is classified under PMIC - Power Management ICs and is currently listed as obsolete or end-of-life.

Feature Summary

• Integrated power factor correction control with pulse width modulation capabilities
• Designed for high-temperature industrial environments up to 150°C
• Through-hole mounting configuration for robust mechanical stability

Applications

• Power factor correction circuits in AC/DC converters
• Industrial power supply systems requiring wide temperature operation
• Legacy equipment maintenance and replacement

Procurement Notes

Verify the specific manufacturing date code and lot traceability when sourcing from secondary distributors like Rochester Electronics, as this component is obsolete. Confirm RoHS compliance status directly with the supplier, as older production runs may differ from current regulatory standards. Ensure the PDIP-16 package integrity is intact prior to installation.

Selection Notes

Select this component only for retrofitting existing designs that specifically require the ML4800 architecture. Consider the ML4800 series compatibility if upgrading from earlier revisions. Evaluate the thermal management requirements due to the high maximum operating temperature rating. Verify that the 81 kHz switching frequency aligns with the electromagnetic interference constraints of the target application.

Part Context

The ML4800 belongs to the ML4800 family of power management integrated circuits produced by onsemi. Rochester Electronics provides lifecycle support for discontinued components, ensuring availability for long-term manufacturing needs. This specific part represents a legacy solution for power factor correction applications before more modern integrated controllers became standard.

Replacement Considerations

The FAN4800AUN is identified as a potential replacement option for the ML4800CP. Verify pin-to-pin compatibility and electrical parameter alignment before substitution. Consult official datasheets for both devices to confirm functional equivalence in the specific circuit design.