UCC2802N

Overview

The UCC2802N is a low-power BiCMOS current-mode PWM controller manufactured by Texas Instruments. It operates within a frequency range of 46 kHz to 1 MHz and supports a maximum voltage of 12V. The device is designed for surface mount or through-hole installation, with the N suffix indicating a DIP-8 package. It functions across an operating temperature range of -40°C to +85°C. This component belongs to the PMIC category and serves as a power management integrated circuit for switching applications.

Feature Summary

• Utilizes low-power BiCMOS technology for efficient operation
• Employs current-mode PWM control architecture
• Supports wide frequency adjustment from 46 kHz to 1 MHz

Applications

• Low-power switching power supplies
• Battery charger circuits
• Adapters and chargers

Procurement Notes

Verify the specific package type and temperature rating against project requirements. Confirm that the DIP-8 through-hole configuration matches the PCB layout. Ensure the 12V maximum voltage limit is sufficient for the target application. Check for RoHS compliance status if required by manufacturing standards. Validate the operating temperature range covers the intended environmental conditions.

Selection Notes

Select this component for designs requiring low quiescent current and flexible frequency settings. The current-mode control offers improved transient response compared to voltage-mode alternatives. Consider the DIP-8 package for prototyping or manual assembly needs. Evaluate the 12V input constraint against system voltage rails. Compare performance against other members of the UCC280x series for specific topology requirements.

Part Context

The UCC2802N is part of the UCC280x family of PWM controllers from Texas Instruments. This series includes variants like the UCC2800, UCC2801, and UCC2803, offering similar control features with different packaging or electrical characteristics. The UCC2802 specifically targets low-power applications where efficiency and cost are critical factors in power supply design.

Replacement Considerations

Direct substitutes include UCC2800, UCC2801, UCC2803, UCC2804, and UCC2805. Verify pin compatibility and electrical specifications before substitution. The UCC2802QDRQ1 is an automotive-grade variant with different qualification standards.