Texas Instruments UCC25705 Data Sheet
Summary
The UCC35705 and UCC35706 are high-performance primary side voltage mode controllers engineered for designing sophisticated isolated and non-isolated power converters. These devices provide fast over-current protection and improved efficiency thanks to integrated feed-forward compensation and a rapid 25 ns current sensing delay. The family includes specialized options—best suited for DC-to-DC applications (UCC35705) or demanding offline systems (UCC35706)—and features programmable circuit clamping. This manual details the technical specifications, application suitability, and multiple package options needed by power electronics engineers.
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 20 |
| File Size | 533.73 KB |
| Published | June 18, 2026 |
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Frequently Asked Questions
What is ideal for high-speed DC-to-DC converters?
The UCC35705, which has a lower turn-on voltage, is intended for dc-to-dc converters.
Which chip should be used for offline power applications?
The UCC35706 is better suited for offline applications because it offers a higher turn-on voltage and a wider UVLO range.
How quickly does the device react to an overload condition?
A typical current sense to output delay time of 25 ns provides fast response to overload conditions.
Are these controllers suitable for automotive or military use?
No, they are neither designed nor intended for military/aerospace or automotive environments unless specifically designated by TI as compliant.