UCC35702DTR

DC DC Switching Controllers Overview

The UCC35702DTR is an advanced voltage mode pulse width modulator from Texas Instruments, designed for isolated switching power supplies using primary side control. It supports boost, flyback, and forward converter topologies with a single positive output capable of isolation. The device operates within a supply voltage range of 8.8V to 15V and features a maximum duty cycle of 99%. It utilizes a 14-SOIC package and functions at a switching frequency of 100kHz. The controller includes integrated features such as current limiting, frequency control, slope compensation, sequencing, and soft start capabilities.

DC DC Switching Controllers Feature Summary

• Supports multiple converter topologies including boost, flyback, and forward configurations
• Enables primary side control for isolated power supply designs
• Integrates comprehensive protection and control features like soft start and current limiting

DC DC Switching Controllers Applications

• Isolated DC-DC converter designs
• Primary side controlled power supplies
• Boost and flyback converter implementations

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized channels due to potential availability issues. Confirm RoHS3 compliance and moisture sensitivity level (MSL 2) requirements during storage and handling. Ensure the specific suffix matches design specifications as packaging variations exist. Check for obsolescence status and lead times with distributors before finalizing procurement plans.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring primary side regulation in isolated converters. Consider the 14-SOIC package constraints and 100kHz switching frequency when designing magnetic components. Evaluate the need for external synchronization if clock sync is required. Verify that the 8.8V to 15V Vcc range aligns with the auxiliary winding or startup circuit design.

DC DC Switching Controllers Part Context

The UCC35702DTR belongs to the UCC35701/UCC35702 family of advanced voltage mode PWM controllers. This series is specifically engineered for high-performance isolated power conversion systems. The device integrates essential control loops and protection mechanisms to simplify design while maintaining robust performance in demanding industrial and commercial power supply environments.

DC DC Switching Controllers Replacement Considerations

UCC35702D is listed as a public confirmed substitute part number.