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L6563ATR Datasheet(PDF) 1 Page - STMicroelectronics |
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L6563ATR Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 37 page  November 2006 Rev 3 1/37 37 L6563 L6563A Advanced transition-mode PFC controller General features ■ Transition-mode control of PFC pre-regulators ■ Very precise adjustable output overvoltage protection ■ Tracking boost function ■ Protection against feedback loop failure (Latched shutdown) ■ Interface for cascaded converter's PWM controller ■ Input voltage feedforward (1/V2) ■ Remote ON/OFF control ■ Low ( ≤90µA) start-up current ■ 5mA max. quiescent current ■ 1.5% (@ TJ = 25°C) internal reference voltage ■ -600/+800 mA totem pole gate driver with active pull-down during UVLO ■ SO14 package Applications PFC pre-regulators for: ■ HI-END AC-DC adapter/charger ■ Desktop PC, server, WEB server ■ IEC61000-3-2 OR JEIDA-MITI compliant SMPS, in excess of 250W Order code Part number Package Packaging L6563 SO-14 Tube L6563TR SO-14 Tape & Reel L6563A SO-14 Tube L6563ATR SO-14 Tape & Reel SO-14 www.st.com Block diagram + - V REF2 Vbias (INTERNAL SUPPLY BUS) + - 2.5V R1 R2 + - ZE RO CURRE NT DE TE CTOR V CC 14 12 3 4 ZCD V CC IN V C O M P M U LT CS GD 13 11 GN D 12 MULTIPLIER R S Q STAR TE R 1.7V + - 6 TBO 2.5 V PFC _O K 7 1:1 CURRENT MIRROR - RU N 10 0.5 2V 0.6 2V PW M _LA TC H 8 5 VFF LEADING-EDGE BLANKING 1:1 BUFFER from VFF 1.4 V 0.7 V PW M _STOP 9 Vbias UVL O CO M P AR A TO R 0.2V 0.3V 15 V SAT DIS ABLE LATCH UVLO 3V SAT Id eal dio de 1 / V2 Sta rter OFF Driver Q TRACKING BOOST ON/OFF CONTROL (BROWNOUT DETECTION) LINE VOLTAGE FEEDFORW ARD INDUCTOR SATURATION DETECTION ( not in L6563A ) FE E D B A C K F A ILURE DE TE CTIO N VO L TAG E RE G U LA TO R V o ltage re fe rence s |
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