UC3855BNG4

Overview

The UC3855BNG4 is a high-performance power factor correction (PFC) preregulator manufactured by Texas Instruments. It operates with a switching frequency of 500 kHz and utilizes a 20-pin PDIP package for through-hole mounting. The device supports an operating temperature range from 0°C to +70°C. Designed for efficient power management, it integrates control circuitry necessary for active PFC applications.

Feature Summary

• High-performance power factor correction preregulator design
• Integrated control circuitry for active PFC applications

Applications

• Power factor correction systems
• Active PFC preregulators

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS status as documented in the official datasheet. Confirm the 20-pin PDIP package type matches the target PCB footprint requirements. Ensure the component meets the specified industrial temperature range of 0°C to +70°C for the intended environment.

Selection Notes

Select this component when a 500 kHz switching frequency is required for compact magnetic designs. The 20-pin PDIP package suits through-hole assembly processes. Consider the UC3855BN as a potential alternative if the G4 suffix variant is unavailable, provided pin compatibility is verified.

Part Context

This part belongs to the UC3855B series of power factor correction controllers. It is categorized under PMIC - Power Management ICs within the manufacturer's portfolio. The device serves as a specialized solution for improving power quality in electronic systems requiring active PFC.

Replacement Considerations

The UC3855BN is listed as an alternative part number.