UCC3813N-1

DC DC Switching Controllers Overview

The UCC3813N-1 is a low-power economy BiCMOS current mode PWM controller manufactured by Texas Instruments. It operates with a maximum switching frequency of 52 kHz and supports boost, buck, and flyback topologies. The device features a 4.1V/3.6V undervoltage lockout (UVLO) threshold and a fixed 50% duty cycle limit. It is housed in an 8-pin PDIP package and functions within a temperature range of 0°C to 70°C.

DC DC Switching Controllers Feature Summary

• Implements current-mode pulse width modulation control for efficient power regulation
• Integrates undervoltage lockout circuitry to ensure stable startup and operation
• Supports multiple converter topologies including boost, buck, and flyback configurations

DC DC Switching Controllers Applications

• Boost converter designs
• Buck converter implementations
• Flyback power supply circuits

DC DC Switching Controllers Procurement Notes

Verify the specific suffix designation against official documentation, as variants like UCC3813N-2 or N-3 may exist with different electrical characteristics. Confirm package type and operating temperature range requirements match the application needs before procurement.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring low-cost, low-power current-mode control. Ensure the design accommodates the 52 kHz maximum switching frequency and 50% duty cycle constraint. Verify compatibility with the 8-PDIP package for through-hole mounting requirements.

DC DC Switching Controllers Part Context

This part belongs to the UCC3813 family of low-power economy BiCMOS current mode PWM controllers. The family includes various suffixes indicating different performance grades or packaging options, all sharing the core current-mode control architecture designed for cost-sensitive power management solutions.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other UCC3813 variants such as UCC3813N-2 or UCC3813N-3, provided their specific electrical parameters align with the design requirements. Cross-reference datasheets to confirm pinout and functional equivalence.