8561

8561 UTC | Alldatasheet

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UNISONIC TECHNOLOGIES CO., LTD

8561 Preliminary CMOS IC

w w w . u n i s o n i c . c o m . t w 1 of 6 Copyright © 2010 Unisonic Technologies Co., Ltd QW-R502-444.a POWER FACTOR CORRECTOR „ DESCRIPTION The UTC 8561 is a Power Factor Corrector, which can work in wide input voltage range applicat ions (from 85V ~ 265V) with an excellent THD. It has very low start up current (about 50 uA) and a disable function on the ZCD pin, which is designed to keep lower current consumption in stand by mode. The device is operating in transition mode, and is able to drive a Power MOS or IGBT with a ± 400mA current for sourcing and sinking. „ FEATURES * 1% Precision (@ TJ = 25°C) Internal Reference Voltage * Output Overvoltage Protection * Very Low Power Start-Up Current * Very Low Operating Supply Current * Current Sense Filter On Chip * Disable Function (with ZCD Pin) * Transition Mode Operation * Gate Driving Current: ± 400mA „ ORDERING INFORMATION Ordering Number Lead Free Plating Halogen Free Package Packing 8561L-D08-T 8561G-D08-T DIP-8 Tube

UNISONIC TECHNOLOGIES CO., LTD 2 of 6 www.unisonic.com.tw Q W - R 5 0 2 - 4 4 4 . a „ PIN CONFIGURATION INV COMP MULT CS Vcc GD GND ZCD „ PIN DESCRIPTION PIN NO PIN NAME DESCRIPTION 1 INV Inverting input of the error amplifier. 2 COMP Output of t he error amplifier. 3 MULT Input of t he multiplier stage. 4 CS Input of the cu rrent sense stage. 5 ZCD Input of the zero current detection. 6 GND Ground. 7 GD Gate driver output. 8 V CC Voltage supply.

UNISONIC TECHNOLOGIES CO., LTD 3 of 6 www.unisonic.com.tw Q W - R 5 0 2 - 4 4 4 . a „ BLOCK DIAGRAM VOLTAGE REGULATOR OVER-VOLTAGE DETECTION R Q S 40K CS 5pF + - MULTIPLIER MULT VCC GD D R I V E R STARTER DISABLE ZCD 2.1V 1.6V VREF2 20V VCC INTERNAL SUPPLY 7V UVLO ZERO CURRENT DETECTOR INV 2.5V COMP GND

UNISONIC TECHNOLOGIES CO., LTD 4 of 6 www.unisonic.com.tw Q W - R 5 0 2 - 4 4 4 . a „ ABSOLUTE MAXIMUM RATINGS (Ta=25°C, unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Analog Inputs & Outputs INV, COMP MULT -0.3 ~ 7 V Current Sense Input CS -0.3 ~ 7 V Iq+Iz (IGD = 0) IV CC 30 mA Output Totem Pole Peak Current (2ms) I GD ±700 mA Zero Current Detector ZCD 50 (source) -10 (sink) mA mA Power Dissipation P D 0.65 W Junction Temperature T J 150 °C Storage Temperature T STG -55 ~ +150 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. „ ELECTRICAL CHARACTERISTICS (VCC=14.5V, Ta=-25°C ~ 125°C, unless otherwise specified) PARAMETER PIN SYMBOL TEST CONDITIONS MIN TYP MAX UNIT SUPPLY VOLTAGE SECTION Operating Range 8 V CC after turn-on 11 18 V Turn-ON Threshold 8 V CC(ON) 11 12 13 V Turn-OFF Threshold 8 V CC(OFF) 8.7 9.5 10.3 V Hysteresis 8 Hys 2.2 2.5 2.8 V SUPPLY CURRENT SECTION Start-up Current 8 I START-U before turn-on (V CC=11V) 20 50 90 μA Quiescent Current 8 Iq 2.6 4 mA CL=1nF @ 70KHz 4 5.5 mA Operating Supply Current 8 I CC In OVP condition Vpin1=2.7V 1.4 mA 8 V PIN5≤150mA, VCC>VCC off 1.4 mA Quiescent Current 8 Iq VPIN5≤150mV, VCC<VCC off 20 50 90 μA Zener Voltage 8 V Z I CC=25mA 18 20 30 V ERROR AMPLIFIER SECTION Ta=25°C 2.465 2.5 2.535 V Voltage Feedback Input Threshold 1 V INV 12V<VCC<18V 2.44 2.56 V Line Regulation V CC=12 ~ 18V 2 5 mV Input Bias Current 1 I INV -100 -1000 uA Voltage Gain G V Open loop 60 80 dB Gain Bandwidth G B 1 MHz Source Current V COMP=4V, VINV=2.4V -2 -4 -8 mA Sink Current 2 I COMP VCOMP=4V, VINV=2.6V 2.5 4.5 mA Upper Clamp Voltage I SOURCE=0.5mA 5.8 V Lower Clamp Voltage 2 V COMP Isink=0.5mA 2.25 V MULTIPLIER SECTION Linear Operating Voltage 3 V MULT 0~ 3 0 ~ 3.5 V Output Max.Slope V△ CS V△ mult VMULT=from 0V ~ 0.5V VCOMP=Upper ClamVoltage 1.65 1.9 Gain K V MULT=1V, VCOMP=4V 0.45 0.6 0.75 1/V CURRENT SENSE COMPARATOR Current Sense Reference Clamp 4 V CS VMULT=2.5V VCOMP=Upper Clamp Voltage 1.6 1.7 1.8 V Input Bias Current 4 I CS V OS=0 -0.05 -1 μA Delay to Output 4 t d(H-L) 200 450 ns Current Sense Offset 4 0 15 mV

UNISONIC TECHNOLOGIES CO., LTD 5 of 6 www.unisonic.com.tw Q W - R 5 0 2 - 4 4 4 . a „ ELECTRICAL CHARACTERISTICS (Cont.) PARAMETER PIN SYMBOL TEST CONDITIONS MIN TYP MAX UNIT ZERO CURRENT DETECTOR Input Threshold Voltage Rising Edge (Note) 5 2.1 V Hysteresis (Note) VZCD 0.3 0.5 0.7 V Upper Clamp Voltage 5 V ZCD I ZCD=20μA 4.5 5.0 6.8 V Upper Clamp Voltage 5 V ZCD I ZCD=3mA 4.7 5.1 7 V Lower Clamp Voltage 5 V ZCD I ZCD=3mA 0.3 0.65 1 V Sink Bias Current 5 I ZCD 1V V ≦ ZCD 4.5V≦ 2 μA Source Current Capability 5 I ZCD -3 -10 mA Sink Current Capability 5 I ZCD 3 10 mA Disable threshold 5 V DIS 200 300 mV Restart Current After Disable 5 I ZCD V ZCD<Vdis, VCC>VCOFF -200 -300 μA OUTPUT SECTION IGDsource=200mA 1.2 2 V IGDsource=20mA 0.7 1 V IGDsink=200mA 1.5 V Dropout Voltage 7 V GD IGDsink=20mA 0.3 V Output Voltage Rise Time 7 t R C L=1nF 40 100 ns Output Voltage Fall Time 7 t F C L=1nF 40 100 ns IGD Sink Current 7 I GD(OFF) V CC=3.5V, VGD=1V 5 10 mA OUTPUT OVERVOLTAGE SECTION OVP Triggering Current 2 I OVP 35 40 45 μA Static OVP Threshold 2.1 2.25 2.4 V RESTART TIMER Start Timer t START 70 150 400 μs Note: Parameter guaranteed by design, not tested in production.

UNISONIC TECHNOLOGIES CO., LTD 6 of 6 www.unisonic.com.tw Q W - R 5 0 2 - 4 4 4 . a „ TYPICAL APPLICATION CIRCUIT (80W, Wide-range Mains) FUSE 4A/250V Vac (85V ~ 265V) BRIDGE 4×1N4077 400V R10 10K 22μF 25V 10nF 240K R3(*) D3 1N4150 1N5248B 12nF 100 68K T 1μF R6(*) 0.41 6.34K MOS STP8NA50 47μF 450V VOUT=400V PO=80W R7(*) 998K D1 BYT13-600 5 21 UTC 8561 TRANSFORMER T: core THOMSON-CSF B1ET2910A(ETD29×16×10mm)OR EQUIVALENT (OREGA 473201A8) primary 90T of Litz wire 10×0.2mm secondary 7T of #27 AWG (0.15mm) gap 1.25mm for a total primary inductance of 0.8mH NTC R9(*) 1.24M 1μF R3 = 2×120KΩ R6 = 0.82Ω /2 R7 = 2×499KΩ, 1% R9 = 2×620KΩ (*) UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.