Transcription of Transition-mode PFC controller - STMicroelectronics
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Transition-mode PFC controller - STMicroelectronics
L6562. Transition-mode PFC controller . 1 Features Figure 1. Packages REALISED IN BCD TECHNOLOGY. Transition-mode CONTROL OF PFC PRE- regulators . PROPRIETARY MULTIPLIER DESIGN FOR DIP-8 SO-8. MINIMUM THD OF AC INPUT CURRENT. VERY PRECISE ADJUSTABLE OUTPUT Table 1. Order Codes OVERVOLTAGE PROTECTION Part Number Package ULTRA-LOW ( 70 A) START-UP CURRENT L6562N DIP-8. LOW ( 4 mA) QUIESCENT CURRENT. L6562D SO-8. EXTENDED IC SUPPLY voltage RANGE. L6562 DTR Tape & Reel ON-CHIP FILTER ON CURRENT SENSE. DISABLE FUNCTION. DESKTOP PC, MONITOR) UP TO 300W. 1% (@ Tj = 25 C) INTERNAL REFERENCE. voltage HI-END AC-DC ADAPTER/CHARGER. -600/+800mA TOTEM POLE GATE DRIVER WITH ENTRY LEVEL SERVER & WEB SERVER. UVLO PULL-DOWN AND voltage CLAMP. 2 Description DIP-8/SO-8 PACKAGES ECOPACK . The L6562 is a current-mode PFC controller oper- APPLICATIONS ating in Transition Mode (TM). Pin-to-pin compati- PFC PRE- regulators FOR: ble with the predecessor L6561, it offers improved IEC61000-3-2 COMPLIANT SMPS (TV, performance.
VOLTAGE REGULATOR UVLO INTERNAL SUPPLY 7V +-2.5V R1 R2 R S Q - + DRIVER STARTER +-ZERO CURRENT DETECTOR DISABLE 2.1 V 1.6 V VCC 8 1 23 4 ZCD VCC INV COMP MULT CS GD 7 5 GND 6 25 V 40K 5pF 15 V Starter ... VZCDT Triggering Voltage (negative-going edge) (3) 1.6 V IZCDb Input Bias Current V ZCD = 1 to 4.5 V 2µA IZCDsrc …
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