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FA5500AP/AN, FA5501AP/AN |
Quality is our message |
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FUJI Power Supply Control IC
Power Factor Correction
FA5500AP/AN
FA5501AP/AN
November `02
Fuji Electric Co., Ltd.
Matsumoto Factory
1
FA5500AP/AN, FA5501AP/AN |
Quality is our message |
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WARNING
1.This Data Book contains the product specifications, characteristics, data, materials, and structures as of November 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) |
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• Measurement |
equipment |
• Machine tools • Audiovisual equipment • Electrical home |
appliances |
• Personal equipment • Industrial robots etc. |
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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. |
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• Transportation equipment (mounted on cars and ships) |
• Trunk communications equipment |
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• Traffic-signal control equipment |
• Gas leakage detectors with an auto-shut-off feature |
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• Emergency equipment for responding to disasters and anti-burglary devices |
• Safety devices |
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6. |
Do not use products in this Data Book for the equipment requiring strict reliability such as (without |
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limitation) |
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• Space equipment |
• Aeronautic equipment |
• Atomic control equipment |
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• Submarine repeater equipment |
• Medical equipment |
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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
FA5500AP/AN, FA5501AP/AN |
Quality is our message |
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CONTENTS
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Pages |
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1. |
Description |
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4 |
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2. |
Features |
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4 |
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3. |
Outline |
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4. |
Types of FA5500A/01A |
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5. |
Block diagram |
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6. |
Pin assignment |
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7. |
Ratings and characteristics |
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– 8 |
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8. |
Characteristic curves |
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– 12 |
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9. |
Description of PFC converter |
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– 14 |
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10. |
Description of each circuit |
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– 18 |
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11. |
Design advice |
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19 |
–25 |
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12. |
Example of application circuit |
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26 |
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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.
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FA5500AP/AN, FA5501AP/AN
1. Description
Quality is our message
FA5500A/FA5501A are control ICs for a power factor correction converter using critical conduction mode of operation. This IC uses a CMOS device with high dielectric strength (30V) to implement low power consumption. These ICs contain compensated current sense comparator for light load and open/short protection at feedback (FB) pin. Compensated current sense comparator for light load keeps output voltage constant from no-load to full-load. Open/short protection at FB pin stops output pulses when voltage divider to detect output voltage becomes fault.
2. Features
•Low current consumption by CMOS process Start-up : 20µA(max.), Operating : 1mA(typ.)
•Drive circuit for connecting a power MOSFET directly
• Output peak current, source : 500mA, sink : 1000mA
•Compensated current sense comparator for light load
•Open/short protection at feedback (FB) pin
•Undervoltage Lockout
FA5500A: 11.5V ON / 9V OFF FA5501A:13V ON / 9V OFF
•Overvoltage protection
•Restart timer
•Package: DIP-8 / SOP-8
3. Outline
SOP-8 |
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DIP-8 |
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0.18 ±0.08 |
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8 |
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6.4 |
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3.9 |
6 ±0.2 |
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±0.25 |
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0.65 |
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9.3 |
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1.0 ±0.3 |
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1.5 ±0.3 |
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4.9 |
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+0.10 |
3.3 |
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20 |
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-0.05 |
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0. |
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4.5 |
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MAX |
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0o − |
8o |
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3MIN |
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1.8 |
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2.54 |
0.46 ±0.1 |
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1.27 |
0.4 ±0.1 |
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2.54×3=7.62 |
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4.Types of FA5500A/01A
Type |
Startup Threshold |
Package |
FA5500AP |
11.5V(typ.) |
DIP-8 |
FA5500AN |
11.5V(typ.) |
SOP-8 |
FA5501AP |
13V(typ.) |
DIP-8 |
FA5501AN |
13V(typ.) |
SOP-8 |
0.25 |
+0.1 |
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0.05 |
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0o − 15o |
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7.62 |
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4
FA5500AP/AN, FA5501AP/AN
5. Block diagram
Quality is our message
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MUL |
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VCC |
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3 |
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8 |
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VREF(2.5V) |
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VREF(2.5V) |
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VDD(5.0V) |
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+ |
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VOVP(1.09VREF) |
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REF |
UVLO |
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MUL |
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VZCD(1.5V/1.33V) |
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FB |
1 |
ERRAMP |
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VOS(2.0V) |
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- |
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VSP(0.3V) |
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COMP 2 |
VOS(2.0V) |
AOC |
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2.5µA |
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- |
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- |
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R |
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OUT |
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VSP(0.3V) |
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SP |
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Q |
OVP |
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SP |
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VOVP |
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(1.09VREF) |
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+ |
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- |
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OVP |
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R |
TIMER |
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- |
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GND 6 |
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R |
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VZCD(1.5V/1.33V) |
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4 |
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IS |
ZCD |
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6. Pin assignment
VCC OUT GND ZCD
8 7 6 5
1 2 3 4
FB COMP MUL IS
Pin No. |
Pin |
Function |
Description |
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symbol |
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1 |
FB |
Voltage Feedback Input |
Input for monitoring PFC output voltage |
2 |
COMP |
Compensation |
Output of error amplifier |
3 |
MUL |
Multiplier Input |
Input of multiplier for monitoring sinusoidal |
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waveform |
4 |
IS |
Current Sense Input |
Input for sensing MOSFET current signal |
5 |
ZCD |
Zero Current Detect Input |
Input for detecting that the inductor current |
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reaches zero |
6 |
GND |
Ground |
Ground |
7 |
OUT |
Output |
Output for direct driving a power MOSFET |
8 |
VCC |
Power Supply |
Power supply for IC |
5
FA5500AP/AN, FA5501AP/AN
7. Ratings and characteristics
Quality is our message
The contents are subject to change without notice. When using a product, be sure to obtain the latest specifications.
(1)Absolute Maximum Ratings
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Symbol |
Ratings |
Unit |
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Total Power Supply and Zener Current |
Icc+Iz |
30 |
mA |
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Supply |
Zener Clamp (Icc+Iz<30mA) |
Vcc |
Self Limiting |
V |
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Voltage |
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Output Current |
Sink |
Io |
+1000 |
mA |
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Source |
-500 |
mA |
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Input voltage(IS,MUL,FB) |
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Vin |
-0.3 to 5 |
V |
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Zero Current Detect Input |
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High State Forward Current |
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Iin |
-50 |
mA |
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Low State Reverse Current |
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10 |
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Power dissipation |
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DIP-8 |
Pd1 |
800 |
mW |
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SOP-8 |
Pd2 |
400 |
mW |
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Operating Ambient Temperature |
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Ta |
-30 to +105 |
°C |
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Operating Junction Temperature |
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Tj |
+150 |
°C |
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Storage Temperature |
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Tstg |
-55 to +150 |
°C |
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Maximum dissipation curve
400mW(SOP) |
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800mW(DIP) |
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Maximum dissipation Pd [mW] |
25 |
105 |
150 |
-30 |
Ambience temperature Ta(°C)
(2)Recommended Operating Conditions
Item |
Symbol |
Min |
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Typ |
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Max |
Unit |
Supply Voltage |
Vcc |
10 |
12 |
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28 |
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V |
ZCD pin current |
Izcd |
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±3 |
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mA |
6
FA5500AP/AN, FA5501AP/AN |
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Quality is our message |
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(3)Electrical Characteristics (Unless otherwise specified, Ta=25°C and Vcc=12V) |
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ERROR AMPLIFIER(FB,COMP Pin) |
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Min |
Typ |
Max |
Unit |
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Voltage |
Feedback |
Input |
Vfb |
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Ta=25°C |
2.465 |
2.500 |
2.535 |
V |
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Threshold |
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Line Regulation |
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Regline |
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Vcc=12V to 28V |
-50 |
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-20 |
- |
mV |
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Ta=25°C |
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Temperature stability |
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VdT |
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Ta=-30°C to +105°C |
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mV/°C |
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Transconductance |
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Gm |
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Ta=25°C |
70 |
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90 |
120 |
µmho |
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Output Current |
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Io |
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Source(Vfb=2.3V) |
- |
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10 |
- |
µA |
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Sink(Vfb=2.7V) |
- |
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10 |
- |
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OVERVOLTAGE COMPARATER (FB Pin) |
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Condition |
Min |
Typ |
Max |
Unit |
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Input Threshold |
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Vthovp |
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1.075Vfb |
1.09Vfb |
1.105Vfb |
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FB SHORT COMPARATOR(FB Pin) |
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Min |
Typ |
Max |
Unit |
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Input Threshold |
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Vthsht |
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0.1 |
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0.3 |
0.5 |
V |
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Pulldown Current |
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Ifb |
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0.5 |
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2.5 |
5 |
µA |
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MULTIPLIER(COMP,MUL Pin) |
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Condition |
Min |
Typ |
Max |
Unit |
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Input Threshold |
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Vthcomp |
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1.79 |
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2.04 |
- |
V |
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Pin2(COMP) |
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Dynamic Input Voltage Range |
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Pin3(MUL) |
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Vpin3 |
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0 to 2.5 |
0 to 3.5 |
- |
V |
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Pin2(COMP) |
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Vpin2 |
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Vthcomp to |
Vthcomp to |
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Vthcomp |
Vthcomp |
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+1.0 |
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+1.5 |
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Vpin3=0.5V |
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Gain |
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K |
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Vpin2=Vthcomp |
0.53 |
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0.75 |
0.97 |
1/V |
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+1.0V |
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K=Pin4Threshold/{Vpin3(Vpin2-Vthcomp)} |
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ZERO CURRENT DETECTOR (ZCD Pin) |
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Symbol |
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Condition |
Min |
Typ |
Max |
Unit |
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Input Threshold Voltage |
Vthzcd |
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Vin increasing |
1.33 |
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1.50 |
1.87 |
V |
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Hysteresis |
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Vh |
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Vin decreasing |
100 |
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170 |
300 |
mV |
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Input Clamp Voltage |
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“H” state |
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Vih |
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Idet=+3.0mA |
7.0 |
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7.6 |
- |
V |
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“L” state |
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Vil |
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Idet=-3.0mA |
0.3 |
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0.6 |
1.0 |
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CURRENT SENSE COMPARATOR (IS Pin) |
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Min |
Typ |
Max |
Unit |
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Maximum |
Current |
Sense |
Vthis |
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Vpin1=1.0V |
1.3 |
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1.5 |
1.8 |
V |
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Input Threshold |
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Vpin3=3.0V |
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Delay to Output |
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Tphl |
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- |
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170 |
400 |
ns |
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7
FA5500AP/AN, FA5501AP/AN
DRIVE OUTPUT (OUT Pin)
Quality is our message
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Item |
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Symbol |
Condition |
Min |
Typ |
Max |
Unit |
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Output Voltage Low State |
Vol |
Vcc=12V |
- |
1.2 |
3.3 |
V |
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Isink=200mA |
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Output Voltage High State |
Voh |
Vcc=12V |
7.8 |
8.4 |
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V |
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Isouce=200mA |
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Output Voltage Rise Time |
Tr |
CL=1.0nF |
- |
50 |
120 |
ns |
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Output Voltage Fall Time |
Tf |
CL=1.0nF |
- |
25 |
100 |
ns |
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RESTART TIMER |
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Item |
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Symbol |
Condition |
Min |
Typ |
Max |
Unit |
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Restart Time Delay |
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Tdly |
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100 |
200 |
- |
µs |
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UNDERVOLTAGE LOCKOUT (VCC Pin) |
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Item |
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Symbol |
Condition |
Min |
Typ |
Max |
Unit |
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Startup Threshold |
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Von |
FA5500A |
10 |
11.5 |
13 |
V |
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FA5501A |
11.5 |
13 |
14.5 |
V |
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Minimum |
Operating |
Voltage |
Voff |
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8 |
9 |
10 |
V |
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After Turn-On |
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Hysteresis |
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Vhysvcc |
FA5500A |
1.8 |
2.5 |
3.2 |
V |
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FA5501A |
3.3 |
4 |
4.7 |
V |
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TOTAL DEVICE (VCC Pin) |
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Item |
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Symbol |
Condition |
Min |
Typ |
Max |
Unit |
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Power Supply Zener Voltage |
Vz |
Icc=25mA |
30 |
33 |
36 |
V |
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Startup Power Supply Current |
Istart |
Vcc=8.0V |
- |
- |
20 |
µA |
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Operating |
Power |
Supply |
Icc |
Vcc=12V |
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1.0 |
2.0 |
mA |
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Current |
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Dynamic |
Operating |
Power |
Iop |
50kHz,CL=1.0nF |
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2.0 |
4.0 |
mA |
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Supply Current |
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8
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