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UCC25600DR Datasheet(PDF) 1 Page - Texas Instruments |
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UCC25600DR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 23 page 1 FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION DIAGRAM OC RT DT SS VCC GND GD1 GD2 Vs 3 4 1 2 5 6 7 8 UCC25600 * * * UCC25600 www.ti.com ............................................................................................................................................. SLUS846A – SEPTEMBER 2008 – REVISED MARCH 2009 8-Pin High-Performance Resonant Mode Controller • Variable Switching Frequency Control • Programmable Minimum Switching Frequency The UCC25600 high performance resonant mode controller is designed for dc-to-dc applications With 4% Accuracy (3% accuracy at utilizing resonant topologies, especially the LLC half temperature range: -20°C to 105°C) bridge resonant converter. This highly integrated • Programmable Maximum Switching Frequency controller implements frequency modulation control • Programmable Dead Time for Best Efficiency and complete system functions in only an 8-pin package. Switching to the UCC25600 will greatly • Programmable Soft-Start Time simplify the system design, layout and improve time • Easy ON/OFF Control to market, all at a price point lower than competitive • Over-Current Protection 16-pin device offerings. • Over-Temperature Protection The internal oscillator supports the switching • Bias Voltage UVLO and OVP frequencies from 30 kHz to 350 kHz. This high accuracy oscillator realizes the minimum switching • Integrated Gate Driver With 0.4-A Source and frequency limiting with 4% tolerance, allowing the 0.8-A Sink Capability designer to avoid "over design" of the power stage • Operating Temperature Range: –40°C to 125°C and, thus, further reducing overall system cost. The • SOIC 8-Pin Package programmable dead time enables zero-voltage switching with minimum magnetizing current. This will maximize system efficiency across a variety of applications. The programmable soft-start timer • 100-W to 1-kW Power Supplies maximizes design flexibility demanded by the varied • LCD, Plasma and DLP TVs requirements of end equipments utilizing a half bridge • Adaptors, Computing and ATX Power Supplies topology. By incorporating 0.4-A source and 0.8-A • Home Audio Systems sink driving capability, a low cost, reliable gate driver transformer is a real option. • Electronic Lighting Ballasts The UCC25600 delivers complete system protection functions including over current, UVLO, bias supply OVP and over temperature protection. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2008–2009, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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