FA5502

FA5502P/M Quality is our message FUJI Power Supply Control IC Power Factor Correction FA5502P/M Application Note June `02 Fuji Electric Co., Ltd. Matsumoto Factory 1 FA5502P/M Quality is our message WARNING 1.This Data Book contains the product specifications, characteristics, data, materials, and structures as of June 2002. The contents are subject to change without notice for specification changes or other reasons. When using a product listed in this Data Book, be sure to obtain the latest specifications. 2. All applications described in this Data Book exemplify the use of Fuji's products for your reference only. No right or license, either express or implied, under any patent, copyright, trade secret or other intellectual property right owned by Fuji Electric Co., Ltd. is (or shall be deemed) granted. Fuji makes no representation or warranty, whether express or implied, relating to the infringement or alleged infringement of other's intellectual property rights which may arise from the use of the applications described herein. 3. Although Fuji Electric is enhancing product quality and reliability, a small percentage of semiconductor products may become faulty. When using Fuji Electric semiconductor products in your equipment, you are requested to take adequate safety measures to prevent the equipment from causing a physical injury, fire, or other problem if any of the products become faulty. It is recommended to make your design fail-safe, flame retardant, and free of malfunction. 4.The products introduced in this Data Book are intended for use in the following electronic and electrical equipment which has normal reliability requirements. • Computers • OA equipment • Communications equipment (terminal devices) • Measurement equipment • Machine tools • Audiovisual equipment • Electrical home appliances • Personal equipment • Industrial robots, etc. 5.If you need to use a product in this Data Book for equipment requiring higher reliability than normal, such as for the equipment listed below, it is imperative to contact Fuji Electric to obtain prior approval. When using these products for such equipment, take adequate measures such as a backup system to prevent the equipment from malfunctioning even if a Fuji's product incorporated in the equipment becomes faulty. • Transportation equipment (mounted on cars and ships) • Trunk communications equipment • Traffic-signal control equipment • Gas leakage detectors with an auto-shut-off feature • Emergency equipment for responding to disasters and anti-burglary devices • Safety devices 6. Do not use products in this Data Book for the equipment requiring strict reliability such as (without limitation) • Space equipment • Aeronautic equipment • Atomic control equipment • Submarine repeater equipment • Medical equipment 7. Copyright © 1995 by Fuji Electric Co., Ltd. All rights reserved. No part of this Data Book may be reproduced in any form or by any means without the express permission of Fuji Electric. 8. If you have any question about any portion in this Data Book, ask Fuji Electric or its sales agents before using the product. Neither Fuji nor its agents shall be liable for any injury caused by any use of the products not in accordance with instructions set forth herein. 2 FA5502P/M Quality is our message CONTENTS page 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Description Features Outline Block diagram Pin assignment Ratings and characteristics Characteristic curves Description of each circuit Design advice Example of application circuit ••••••••••••••• ••••••••••••••• ••••••••••••••• ••••••••••••••• ••••••••••••••• ••••••••••••••• ••••••••••••••• ••••••••••••••• ••••••••••••••• ••••••••••••••• 4 4 4 5 5 6 9 13 18 23 Note • Parts tolerance and characteristics are not defined in all application described in this Data book. When design an actual circuit for a product, you must determine parts tolerances and characteristics for safe and economical operation. 3 FA5502P/M Quality is our message 1. Description FA5502P/M is a control IC for a power factor correction system. This IC uses a CMOS device with high dielectric strength (30V) to implement low power consumption. This IC uses the average current control system to ensure stable operation. With this system, a power factor of 99% or better can be achieved. 2. Features • • • • • • • • • • Low current consumption by CMOS process Stand-by : 3µA(max), Start-up : 30µA(max), Operating : 4mA(typ) Good regulation of PFC output voltage from no-load to full-load Drive circuit for connecting a power MOSFET(IOUT = ±1.5A) Pulse-by-pulse overcurrent and overvoltage limiting function ±2% accuracy reference voltage for setting DC output and overvoltage protection Output ON/OFF control function by external signal External synchronizing input pin for synchronous operation with other circuits Undervoltage lockout function (ON:16.5V, OFF:8.9V) 16-pin package (DIP/SOP) 3. Outline DIP-16 (FA5502P) SOP-16 (FA5502M) 16 9 0.15 ± 0.05 6.5 ± 0.2 16 9 5. 3 ± 0. 1 1 8 19.4 ± 0.3 3.4 ± 0.1 1.5 ± 0.3 1 8 10.2 ± 0.1 7.3 ± 0.5 1. 80 ± 0. 05 7. 8 ± 0. 2 10 º -0 º 2.54 TYP 0.5 ± 0.1 17.78 ± 0.3 0.3 ± 0.1 0.08 7.6 ± 0.2 0º - 15º 1.27 0.40 ± 0.05 4 0. 10 ± 0. 10 4.0 ± 0.3 0 . 75 ± 0. 1 FA5502P/M Quality is our message CT(15) CS(11) REF(13) VCC(10) ON/OFF(12) 4. Block diagram SYNC (14) ON/OFF OSC 11µA UVLO 16.5V/8.9V 5V REF 3.95V/ 2.8V VC (9) OUT (8) 1.55V 11k MUL OVP.COMP Q 1.64V GND (7) PWM.COMP 15k 4.85k R S S OCP.COMP + CUR.AMP ER.AMP + 1.55V VIN(6) VFB (5) 0.39V IDET(16) IFB(1) IIN-(2) VDET(3) OVP (4) 5. P in assignment Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol IFB IINVDET OVP VFB VINGND OUT VC VCC CS ON/OFF REF SYNC CT IDET Current output Function error amplifier Description Output of current error amplifier to connect compensation network Inverting input of current error amplifier to connect compensation network Input of multiplier to detect sinusoidal waveform Input to overvoltage protection circuit Output of voltage error amplifier to connect compensation network Inverting input to voltage error amplifier to detect PFC output voltage Ground Output for direct driving a power MOSFET Power supply to output circuit Power supply for IC A pin to connect a capacitor for soft-start Input of ON/OFF control circuit Reference voltage output Input of synchronization signal A pin to connect timing capacitor and resistor to set oscillation frequency Input of inductor current signal Inverting input to current error amplifier Multiplier input Overvoltage protection input Voltage error amplifier output Inverting input to voltage error amplifier Ground Output Power supply to output circuit Power Supply Soft-start Output ON/OFF control input Reference voltage Oscillator synchronization input Oscillator timing capacitor and resistor Non-inverting input current error amplifier to 5 FA5502P/M Quality is our message 6. Ratings and characteristics The contents are subject to change without notice. When using a product, be sure to obtain the latest specifications. (1) Absolute maximum ratings Item Supply Voltage VC pin Symbol VC VCC1 VCC2 IOUT VSYNC VVINVVDET VOVP VIDET VON/OFF IREF Pd Rating Vcc 30 Self Limiting ±1.5 -0.3 to 5.0 Unit V V V A V VCC pin Low impedance source (Icc>15mA) VCC pin Internal zener clamp voltage (Icc