UCC2805PWR

Overview

The UCC2805PWR is a low-power BiCMOS current-mode PWM controller manufactured by Texas Instruments. It operates with a switching frequency of 1 MHz and supports a maximum duty cycle of 50%. The device provides an output drive current of 1 A and functions within a temperature range of -40°C to +125°C. Packaged in an SOIC-8 surface-mount format, it features rise and fall times of 41 ns and 44 ns respectively. This component is designed for efficient power management applications requiring precise current-mode control.

Feature Summary

• Implements current-mode PWM control architecture for enhanced stability
• Utilizes low-power BiCMOS technology for energy efficiency
• Provides robust gate drive capability with 1 A output current

Applications

• Low-power switched-mode power supplies
• Battery charger systems
• Adapters and external power supplies

Procurement Notes

Verify the specific suffix 'PWR' corresponds to the tape-and-reel packaging variant when ordering. Confirm that the operating temperature range meets the environmental requirements of the target application. Ensure compatibility with the required switching frequency and duty cycle constraints before integration into the design.

Selection Notes

Select this component for designs requiring a fixed 1 MHz switching frequency and a maximum 50% duty cycle. It is suitable for applications needing a single output channel with high peak drive current. Consider the SOIC-8 package size for space-constrained PCB layouts. Validate thermal performance within the specified -40°C to +125°C operational window.

Part Context

The UCC2805 belongs to the UCC280x series of low-power BiCMOS current-mode PWM controllers from Texas Instruments. This family is engineered for cost-effective and compact power supply solutions. The PWR suffix indicates a specific reel-based packaging option distinct from tube or cut-tape variants, facilitating automated assembly processes.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.