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
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(I
OUT
= ±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
7.6 ± 0.2
0º - 15º
0.08
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.
Pin assignment
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Symbol
IFB
IIN-
VDET
OVP
VFB
VIN-
GND
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
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