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UCC28250PW Datasheet(PDF) 5 Page - Texas Instruments |
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UCC28250PW Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 53 page  UCC28250 www.ti.com SLUSA29C – APRIL 2010 – REVISED JULY 2011 ELECTRICAL CHARACTERISTICS (1) (continued) VDD = 12 V, 1- µF capacitor from VDD and VREF to GND, TA = TJ = -40°C to 125°C, RT = 75 kΩ connected to ground to set FSW = 200 kHz (unless otherwise noted). PARAMETER TEST CONDITION MIN TYP MAX UNITS OVP/OTP Comparator VOVP Internal reference 0.66 0.70 0.74 V IOVP Internal current 8.5 11.0 13.5 µA Primary Outputs Rise/fall time CLOAD = 100 pF 8 ns RSRC Output source resistance IOUT = 20 mA 12 20 35 Ω RSNK Output sink resistance IOUT = 20 mA 4 12 30 Synchronous Rectifier Outputs Rise/fall time CLOAD = 100 pF 8 ns IOUT = 20 mA, VDD = 12 V 12 20 35 RSRC Output source resistance IOUT = 20 mA, VDD = 5 V 15 25 45 Ω RSNK Output sink resistance IOUT = 20 mA, VDD = 12 V 4 12 30 PS = VREF -5.0 0 7.5 Primary off to secondary on TDPS PS = 27 k Ω 27 40 50 ns dead time PS = 27 k Ω, 25°C 37 40 43 SP = VREF -5.0 0 7.5 Secondary off to primary on TDSP SP = 20 k Ω 30 40 50 ns dead time SP = 20 k Ω, 25°C 37 40 43 Copyright © 2010–2011, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): UCC28250 |
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