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UCC2893 Datasheet(PDF) 6 Page - Texas Instruments |
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UCC2893 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 42 page UCC2891, UCC2892 UCC2893, UCC2894 SLUS542F − OCTOBER 2003 − REVISED JULY 2009 6 www.ti.com FUNCTIONAL BLOCK DIAGRAM 1 2 3 4 16 15 14 13 VIN (UCC2891/3) LINEOV (UCC2892/4) LINEUV VDD OUT RDEL RTON RTOFF VREF 5 6 7 8 SYNC GND CS RSLOPE 12 11 10 9 AUX PGND SS/SD FB IRDEL SYNC CLOCK REF GEN VDD 5 * ISLOPE VREF ISLOPE CT + + 3 * R SQ Q R PWM OFF TURN−ON DELAY TURN−ON DELAY IRDEL VREF VREF 2 * R + + PWM Offset 0.5 V OUT 1−DMAX CT 0.05 * IRDEL VREF + UCC2892/4 UCC2891/3 1.27 V 0.75 V UV 1.27 V 0.05 * IRDEL VREF + OV 1.27 V + VDD 13 V/ 8 V OUT VDD VDD 93/94 N−Ch. UVLO AND SS VDD VREF UV OV VREF ENABLE 92/94 91/93 91/92 P−Ch. VDD OK OV OFF UV OFF 1−DMAX TYP: VREF = 5.0 V 75k 1/2 x VREF 1/2 x VREF 1/2 x VREF IRTON IRDEL ISS = 0.43 x IRTON |
Similar Part No. - UCC2893_14 |
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Similar Description - UCC2893_14 |
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