TEXAS INSTRUMENTS UCC25705 UCC25706 UCC35705 UCC35706 handbook

Update: 30 September, 2023

This document introduces the UCC35705 and UCC35706 devices, which are 8-pin voltage mode primary side controllers with fast over-current protection. They are used as core high-speed building blocks in high performance isolated and non-isolated power converters. UCC35705/UCC35706 devices feature a high speed oscillator with integrated feed-forward compensation for improved converter performance. A typical current sense to output delay time of 25ns provides fast response to overload conditions. The IC also provides an accurate programmable maximum duty cycle clamp for increased protection which can also be disabled for the oscillator to run at maximum possible duty cycle. Two UVLO options are offered. The UCC35705 with lower turn-on voltage is intended for dc-to-dc converters while the higher turn-on voltage and the wider UVLO range of the UCC35706 is better suited for offline applications. The UCC35705/UCC35706 family is offered in 8-pin MSOP (DGK), SOIC (D) and PDIP (P) packages.

Brand: TEXAS

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Size: 345 KB

MD5 Checksum: 60B9B54EF1DE8F60D413638BCF26825F

Publication date: 01 August, 2012

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PDF Link: TEXAS INSTRUMENTS UCC25705 UCC25706 UCC35705 UCC35706 handbook PDF

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