UCC3805PW

DC DC Switching Controllers Overview

The UCC3805PW is a low-power BiCMOS current-mode PWM controller manufactured by Texas Instruments. It supports Boost, Buck, Flyback, and Forward topologies with a single output. The device operates at a switching frequency of 1000 kHz and delivers an output current of 1000 mA. It features a maximum duty cycle of 50% and includes UVLO thresholds of 4.1V/3.6V. Operating within a temperature range of 0°C to +70°C, it is housed in an 8-pin TSSOP package.

DC DC Switching Controllers Feature Summary

• Current-mode PWM control architecture for efficient power management
• Integrated undervoltage lockout (UVLO) with hysteresis
• Supports multiple converter topologies including Boost, Buck, Flyback, and Forward
• Low-power BiCMOS technology design

DC DC Switching Controllers Applications

• Battery chargers
• DC-DC converters
• Adapters and supplies
• Front-end pre-regulators

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'PW' confirms the TSSOP-8 package type and tube packaging when ordering. Ensure the component meets the required operating temperature range of 0°C to +70°C for your application environment. Cross-reference the manufacturer part number UCC3805PW with official Texas Instruments documentation to confirm availability status and lead times prior to procurement.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring a single-output current-mode PWM solution with moderate power handling capabilities. The 1000 mA output drive capability suits low-to-medium power designs. Consider the 50% maximum duty cycle limitation when designing boost or flyback converters. The TSSOP-8 package offers a compact footprint suitable for space-constrained PCB layouts.

DC DC Switching Controllers Part Context

The UCC3805 belongs to the UC38xx family of current-mode PWM controllers from Texas Instruments. This series is designed for cost-effective and high-performance power supply solutions. The UCC3805 variant specifically targets low-power applications, offering a balance between performance and energy efficiency. It serves as a foundational component in various consumer and industrial power conversion systems.

DC DC Switching Controllers Replacement Considerations

The UCC3805D is a pin-compatible alternative available in an 8-SOIC package. Verify that the SOIC package dimensions align with your PCB footprint if substituting the PW variant. Both devices share similar electrical characteristics and functionality within the UCC3805 series.