UCC35701N

AC DC Converters, Offline Switchers Overview

The UCC35701N is a voltage mode pulse width modulator manufactured by Texas Instruments, housed in a 14-pin PDIP package. It supports multiple converter topologies including Buck, Boost, Flyback, and Forward configurations. The device operates with a switching frequency of 700 kHz and accepts an input voltage of 11 V. It provides a regulated output voltage of 1 V at a maximum output current of 100 mA. The controller features a maximum duty cycle of 100% and exhibits rise and fall times of 20 ns. It functions within a junction temperature range of -55°C to 150°C.

AC DC Converters, Offline Switchers Feature Summary

• Supports versatile power conversion topologies including buck, boost, flyback, and forward architectures.
• Enables high-speed signal processing with rapid rise and fall transition times.
• Allows for continuous conduction mode operation through a maximum duty cycle capability of 100%.

AC DC Converters, Offline Switchers Applications

• Isolated DC-DC converter designs utilizing flyback or forward topologies
• Non-isolated step-down (buck) power supply implementations
• Step-up (boost) voltage regulation circuits

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix 'N' confirms the PDIP package variant rather than surface mount options. Confirm the component status as active or obsolete through official Texas Instruments channels before procurement. Ensure compatibility with existing PCB footprints designed for through-hole mounting. Validate that the 14-pin DIP form factor meets the mechanical constraints of the target assembly.

AC DC Converters, Offline Switchers Selection Notes

Select this component when a through-hole solution is required for voltage mode control applications. Consider the 700 kHz switching frequency for balancing efficiency and component size. Evaluate the 100 mA output drive capability against gate charge requirements. Verify that the wide junction temperature range suits the environmental conditions of the final application.

AC DC Converters, Offline Switchers Part Context

This part belongs to the UCC35701/2 family of advanced voltage mode PWM controllers from Texas Instruments. These devices are designed for flexible power supply architectures requiring precise duty cycle control. The family supports various isolation levels and voltage ranges suitable for industrial and commercial power systems.

AC DC Converters, Offline Switchers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for direct pin-compatible alternatives if discontinuation occurs.

AC DC Converters, Offline Switchers FAQ

What switching frequency does the UCC35701N support?

The UCC35701N operates at a switching frequency of 700 kHz.

Which converter topologies are supported by this controller?

It supports Buck, Boost, Flyback, and Forward converter topologies.