L6562 TRANSITION-MODE PFC CONTROLLER 1Features Figure 1. Packages REALISED IN BCD TECHNOLOGY TRANSITION-MODE CONTROL OF PFC PRE- REGULATORS SO-8 PROPRIETARY MULTIPLIER DESIGN FOR DIP-8 MINIMUM THD OF AC INPUT CURRENT Table 1. Order Codes VERY PRECISE ADJUSTABLE OUTPUT OVERVOLTAGE PROTECTION Part Number Package ULTRA-LOW (70A) START-UP CURRENT L6562N DIP-8 LOW (4 mA) QUIESCENT CURRENT L6562D SO-8 EXTENDED IC SUPPLY VOLTAGE RANGE L6562DTR Tape & Reel ON-CHIP FILTER ON CURRENT SENSE DISABLE FUNCTION DESKTOP PC, MONITOR) UP TO 300W 1% ( Tj = 25 C) INTERNAL REFERENCE HI-END AC-DC ADAPTER/CHARGER VOLTAGE ENTRY LEVEL SERVER & WEB SERVER -600/+800mA TOTEM POLE GATE DRIVER WITH UVLO PULL-DOWN AND VOLTAGE CLAMP 2 Description DIP-8/SO-8 PACKAGES ECOPACK The L6562 is a current-mode PFC controller oper- 1.1 APPLICATIONS ating in Transition Mode (TM). Pin-to-pin compati- ble with the predecessor L6561, it offers improved PFC PRE-REGULATORS FOR: performance. IEC61000-3-2 COMPLIANT SMPS (TV, Figure 2. Block Diagram COMP MULT CS 23 4 1 INV - MULTIPLIER AND 40K THD OPTIMIZER + 2.5V 5pF VOLTAGE OVERVOLTAGE - + REGULATOR DETECTION VCC 8 VCC INTERNAL 15 V SUPPLY 7V R Q 25 V S R1 7 GD + DRIVER UVLO - Starter R2 VREF2 stop ZERO CURRENT DETECTOR + 2.1 V STARTER - 1.6 V DISABLE 6 5 GND ZCD Rev. 8 November 2005 1/16L6562 2 Description (continued) The highly linear multiplier includes a special circuit, able to reduce AC input current distortion, that allows wide-range-mains operation with an extremely low THD, even over a large load range. The output voltage is controlled by means of a voltage-mode error amplifier and a precise (1% Tj = 25C) internal voltage reference. The device features extremely low consumption (70 A before start-up and <4 mA running) and includes a disable function suitable for IC remote ON/OFF, which makes it easier to comply with energy saving norms (Blue Angel, EnergyStar, Energy2000, etc.). An effective two-step OVP enables to safely handle overvoltages either occurring at start-up or resulting from load disconnection. The totem-pole output stage, capable of 600 mA source and 800 mA sink current, is suitable for big MOS- FET or IGBT drive which, combined with the other features, makes the device an excellent low-cost solu- tion for EN61000-3-2 compliant SMPS s up to 300W. Table 2. Absolute Maximum Ratings Symbol Pin Parameter Value Unit V 8 IC Supply voltage (Icc = 20 mA) self-limited V CC --- 1 to 4 Analog Inputs & Outputs -0.3 to 8 V IZCD 5 Zero Current Detector Max. Current -50 (source) mA 10 (sink) P Power Dissipation Tamb = 50C (DIP-8) 1 W tot (SO-8) 0.65 T Junction Temperature Operating range -40 to 150 C j T Storage Temperature -55 to 150 C stg Figure 3. Pin Connection (Top view) INV 1 8 Vcc COMP 2 7 GD MULT 3 6 GND CS 4 5 ZCD Table 3. Thermal Data Symbol Parameter SO8 Minidip Unit R Max. Thermal Resistance, Junction-to-ambient 150 100 C/W th j-amb 2/16