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L6563A

ST Microelectronics
Part Number L6563A
Manufacturer ST Microelectronics
Description Advanced transition-mode PFC controller
Published Feb 3, 2007
Detailed Description L6563 L6563A Advanced transition-mode PFC controller Features ■ Very precise adjustable output overvoltage protection...
Datasheet PDF File L6563A PDF File

L6563A
L6563A

Overview
L6563 L6563A Advanced transition-mode PFC controller Features ■ 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) ■ Inductor saturation detection (L6563 only) ■ 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 SO-14 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 350W Table 1.
Device summary Part number Package L6563 SO-14 L6563TR L6563A L6563ATR SO-14 SO-14 SO-14 Packaging Tube Tape & Reel Tube Tape & Reel Figure 1.
Block diagram TBO VCC GND ZCD RUN TRACKING BOOST 6 1:1 CURRENT MIRROR 1:1 BUFFER 3V 14 INV 1 2.
5V + VOLTAGE from REGULATOR VFF COMP MULT VFF 23 5 1/V2 Ideal diode LINE VOLTAGE MULTIPLIER FEEDFORWARD Voltage references -+ 1.
7V -+ LEADING-EDGE BLANKING 4 Vbias (INTERNAL SUPPLY BUS) INDUCTOR Q SATURATION DETECTION ( not in L6563A ) SAT VCC CS 12 11 1.
4V 0.
7V UVLO R1 COMPARATOR + R2 VREF2 UVLO ZERO CURRENT DETECTOR RQ S 15 V Driver Starter OFF STARTER 13 GD 0.
2V 0.
26V + - + - + + 10 - 0.
52V 0.
6V ON/OFF CONTROL (BROWNOUT DETECTION) DISABLE 9 PWM_STOP LATCH SAT Vbias 8 FEEDBACK FAILURE PROTECTION PWM_LATCH PFC_OK 7 2.
5V March 2007 Rev 4 1/39 www.
st.
com 39 Contents Contents L6563 - L6563A 1 Description .
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3 1.
1 Pin connection .
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4 1.
2 Pin description .
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4 2 Absolute max...


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