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FA5604 데이터시트 PDF




Fuji에서 제조한 전자 부품 FA5604은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 FA5604 기능
기능 Power Supply Control IC
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FA5604 데이터시트, 핀배열, 회로
FA5604/5605/5606
FUJI Power Supply Control IC
General PWM-IC
FA5604/5605/5606
Application Note
Fuji Electric Co., Ltd.
AN-033E Rev.1.2
April-2011
April-2011
Fuji Electric Co.,Ltd.
1 http://www.fujielectric.co.jp/products/semiconductor/




FA5604 pdf, 반도체, 판매, 대치품
FA5604/5605/5606
1. Description
The FA5604/05/06 is the PWM type switching power supply control IC that can directly drive power MOSFET. This IC
realizes the low power consumption with reducing the switching frequency at light load. This IC contains many functions
in a small 8-pin package. With this IC, a high-performance and compact power supply can be created because not many
external discrete components are needed.
2. Features
Voltage mode control
Systems organized by circuit methods
FA5604: Applied to forward power supplies (maximum duty cycle = 46%)
FA5605/FA5606: Applied to flyback power supplies (maximum duty cycle = 70%)
Automatically reduces the switching frequency to suppress loss in stand-by mode
The switching frequency can be set (RT pin)
A drive circuit for connecting a power MOSFET directly
Output peak current: +1.0A / -0.5A
Overcurrent of primary side limiting function (IS pin negative voltage sense)
Overload protection function (switching frequency control by VF pin)
Overload protection function (CS pin)
Built-in output overvoltage latch protection (stopping the latch by pulling up the CS terminal by external signals)
Undervoltage lockout function (17.5V ON / 9.7V OFF)
8-pin package (SOP-8)
3. Outline
SOP-8
85
0.18±0.08
14
4.9
0.20
+0.10
-0.05
0°~8°
1.27
0.4 ±0.1
4. Types of FA5604
type
FA5604N
FA5605N
FA5606N
Max. duty
cycle(typ)
46%
70%
Frequency reduction
mode at light-load
FB voltage:
1.8 V/1.95 V
FB voltage:
1.55 V/1.65 V
Hiccup operation at
overload
Operation period:
shutdown period = 1:7
Operation period:
shutdown period = 1:15
Operation period:
shutdown period = 1:7
Overcurrent
detection
– detection
Package
SOP-8
Fuji Electric Co., Ltd.
AN-033E Rev.1.2
April-2011
4 http://www.fujielectric.co.jp/products/semiconductor/

4페이지










FA5604 전자부품, 판매, 대치품
FA5604/5605/5606
(3)Electrical Characteristics (Tj=25°C,VCC=18V,Rt=12kΩ,unless otherwise specified)
Oscillator Section (RT pin)
Item
Symbol
Conditions
MIN.
Switching oscillation frequency
Fosc Rt=12kΩ, Tj=25°C
171
Variation by supply voltage
Fdv VCC=11V to 30V
-2
Variation by temperature
FdT Tj= -40°C to +125°C
-
Pulse Width Modulation Section (FB pin)
Item Symbol
Source current of FB pin
IFB
Input threshold voltage
VthFB0
VthFBM
Maximum duty cycle
DMAX
OLP threshold voltage
Hysteresis voltage width
Volpon
Volpoff
Volphys
Conditions
FB=0V
Duty cycle=0%
Duty cycle=DMAX
FB=3.25V
FA5604
FA5605/06
OLP mode OFF ON
OLP mode ON OFF
MIN.
-650
0.9
2.7
43
67
3.2
3.0
0.1
Frequency Control Section at Light Load (FB pin)
Item
Symbol
Conditions
Input threshold voltage
Difference of switching frequency
Light Load mode
VthFBS1
OFFON
VthFBS2
Foscdiff1
Light Load mode
ONOFF
RT=24kΩ
FB=VthFBS
FA5604/05
FA5606
FA5604/05
FA5606
FA5604
FA5605/06
Minimum switching frequency
FoscS2 FB=VthFB0
Minimum on pulse width
tminS FB=VthFB0
MIN.
1.65
1.43
1.8
1.53
-15
-10
24
300
Current Sense Section (IS pin)
Item
Input threshold voltage
Source current of IS pin
Propagation delay time
Symbol
VthIS
IIS
tpdIS
IS=0V
Conditions
MIN.
-183
-52
100
ON/OFF, Soft-start Section (CS pin)
Item
Charge current of CS pin
ON/OFF threshold voltage
Symbol
ICS0
Vcson1
Vcsoff1
Conditions
CS=0V
OFFON
ONOFF
Hysteresis voltage width
Soft-start input voltage
Vcshys1
VthCS0
VthCSM
0VVthCSM
Duty cycle = 0%
VthCSM0V
Duty cycle = DMAX
MIN.
-13
0.65
0.50
0.1
0.65
0.5
2.75
TYP.
190
-
0.05
TYP.
-500
1.0
3.0
46
70
3.5
3.3
0.2
TYP.
1.80
1.55
1.95
1.65
-7.5
-5
30
400
TYP.
-170
-40
150
TYP.
-10
0.75
0.60
0.15
0.75
0.6
3.0
MAX.
209
+2
-
Unit
kHz
%
%/°C
MAX.
-390
1.1
3.25
49
73
3.8
3.6
0.3
Unit
A
V
V
%
V
V
V
MAX.
1.95
1.67
2.1
1.77
0
0
39
500
Unit
V
%
%
ns
MAX.
-157
-28
250
Unit
mV
A
ns
MAX.
-7
0.90
0.75
0.2
0.9
0.75
3.25
Unit
A
V
V
V
V
V
Fuji Electric Co., Ltd.
AN-033E Rev.1.2
April-2011
7 http://www.fujielectric.co.jp/products/semiconductor/

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