UCC2813PWTR-3

DC DC Switching Controllers Overview

The UCC2813PWTR-3 is a low-power economy BiCMOS current mode PWM controller manufactured by Texas Instruments. It operates within an industrial temperature range of -40°C to +85°C and utilizes an 8-pin TSSOP package in tape-and-reel format. The device supports switching frequencies up to 1 MHz with a maximum duty cycle of 100%. It features a nominal input voltage of 10 V, with a minimum operating voltage of 9.3 V and a maximum of 12 V. The output stage provides a drive current of 1 A at an output voltage of 12.5 V.

DC DC Switching Controllers Feature Summary

• Integrates internal soft-start and leading-edge blanking for stable operation
• Supports high-frequency switching up to 1 MHz for compact designs
• Provides 1 A push-pull output drive capability

DC DC Switching Controllers Applications

• Boost converter topologies
• Flyback converter implementations
• Forward converter circuits

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'TR' confirms the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the 'UCC' prefix indicates the extended industrial temperature range variant (-40°C to +85°C) rather than the commercial grade. Ensure compatibility with RoHS standards as indicated by the manufacturer's current production status.

DC DC Switching Controllers Selection Notes

Select this component when a current-mode PWM controller with a 100% maximum duty cycle is required for boost or forward applications. The TSSOP-8 package suits space-constrained surface-mount designs. Consider the 1 A output drive strength for direct gate driving of power MOSFETs without additional buffer stages.

DC DC Switching Controllers Part Context

This part belongs to the UCC2813-x series of low-power BiCMOS controllers. It shares pinout compatibility with legacy UC384x devices but includes enhanced features like internal soft-start. The series offers various options for duty cycle limits and UVLO thresholds tailored to different power supply architectures.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include UCC2813PW-3 and UCC2813PW-1 G4, which share the same TSSOP-8 package and electrical characteristics. Verify that alternative packages such as SOIC (UCC2813DTR-4) meet mechanical footprint requirements.