UCC2818ANG4

Overview

The UCC2818ANG4 is a BiCMOS power factor preregulator controller from Texas Instruments, designed for high-performance AC-DC conversion. It operates within a switching frequency range of 6 kHz to 220 kHz and supports an average current mode control architecture. The device functions with a supply voltage between 12 V and 17 V and features a low startup current of 150 µA. It is housed in a 16-SOIC package (0.154 inch width) and is rated for operation across temperature ranges including -40°C to +85°C and -55°C to +125°C variants. This component serves as a core element for implementing efficient power factor correction in universal input systems.

Feature Summary

• Implements average current mode control for precise power factor correction
• Features low startup current to minimize standby power consumption
• Supports wide operating temperature ranges for industrial and automotive environments

Applications

• Universal input AC-DC power supplies
• Industrial power factor correction stages
• Automotive electronics power management

Procurement Notes

Verify the specific suffix against the manufacturer's official documentation to confirm the exact temperature grade and package variant. Ensure that the ordering information matches the required operational specifications for your design. Cross-reference the datasheet revision history to confirm compliance with current manufacturing standards and material declarations before finalizing procurement.

Selection Notes

Select this component when designing systems requiring average current mode PFC with a fixed or programmable frequency up to 220 kHz. Consider the 16-SOIC package constraints and the 12 V to 17 V supply requirement. Evaluate the thermal performance based on the specific temperature grade variant needed for the application environment.

Part Context

The UCC2818ANG4 belongs to the UCC2818A family of BiCMOS power factor preregulators. It is part of Texas Instruments' portfolio of power management integrated circuits focused on improving efficiency in AC-DC front ends. This series is engineered to meet stringent power quality standards while maintaining cost-effectiveness for mass-produced electronic equipment.

Replacement Considerations

UCC2818AD

FAQ

What control mode does the UCC2818ANG4 utilize?

It utilizes average current mode control for power factor correction.

What is the maximum switching frequency supported by this device?

The device supports a switching frequency range up to 220 kHz.