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UCC28503DWG4 Datasheet(PDF) 8 Page - Texas Instruments |
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UCC28503DWG4 Datasheet(HTML) 8 Page - Texas Instruments |
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8 / 35 page  UCC28500, UCC28501, UCC28502, UCC28503 UCC38500, UCC38501, UCC38502, UCC38503 SLUS419C − AUGUST 1999 − REVISED NOVEMBER 2001 8 www.ti.com block diagram UDG−98189 VREF 20 14 12 11 9 4 17 16 GT1 PWRGND ISENSE1 VCC OVP/ENBL VAOUT 1.9 V PKLMT 7.5 V REFERENCE UVLO 16 V/10 V 10.5 V/10 V VCC 15 OSCILLATOR 2 RT 5 CT S Q R PWM LATCH CAOUT SS2 VOLTAGE ERROR AMP 8.0 V 13 1 3 VSENSE VFF 19 IAC 18 MOUT MIRROR 2:1 7.5 V ENABLE PFCOVP ÷ X X MULT CLK1 CURRENT AMP 6.75 V 6 GND 10 GT2 VCC 7 8 CLK2 1.5 V R I LIMIT CLK2 OSC CLK1 CLK2 VERR ISENSE2 I LIMIT S Q UVLO2 PWM 0.33 V (V FF ) 2 ZERO POWER SECOND STAGE SOFT START + + PWM + + + + + + + + 4.5 V PWM 2ND STAGE SECTION PFC SECTION PWM 2ND STAGE SECTION PFC SECTION 1.3 V R R |
Similar Part No. - UCC28503DWG4 |
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Similar Description - UCC28503DWG4 |
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