FOD2712 반도체 회로 부품 판매점
OPTICALLY ISOLATED ERROR AMPLIFIER
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 Fairchild Semiconductor |
OPTICALLY ISOLATED
ERROR AMPLIFIER
FOD2712
DESCRIPTION
The FOD2712 Optically Isolated Amplifier consists of the
popular RC431A precision programmable shunt
reference and an optocoupler. The optocoupler is
a gallium arsenide (GaAs) light emitting diode
optically coupled to a silicon phototransistor. The
reference voltage tolerance is 1%. The current
transfer ratio (CTR) ranges from 100% to 200%.
It is primarily intended for use as the error amplifier/reference
voltage/optocoupler function in isolated ac to dc power supplies and
dc/dc converters.
When using the FOD2712, power supply designers can reduce the
component count and save space in tightly packaged designs. The
tight tolerance reference eliminates the need for adjustments in many
applications.
The device comes in a compact 8-pin small outline package.
FEATURES
• Optocoupler, precision reference and
error amplifier in single package
• 1.240V ± 1% reference
• CTR 100% to 200%
• 2,500V RMS isolation
• VDE approval 136616
• BSI approval 8661 and 8662
• UL approval E90700
• CSA approval 1113643
FUNCTIONAL BLOCK DIAGRAM
NC 1
C2
E3
8 LED
7 FB
6 COMP
APPLICATIONS
NC 4
5 GND
• Power system for workstations
• Telecom central office supply
• Telecom bricks
PACKAGE DIMENSIONS
0.164 (4.16)
0.144 (3.66)
1
0.202 (5.13)
0.182 (4.63)
0.143 (3.63)
0.123 (3.13)
0.010 (0.25)
0.006 (0.16)
0.021 (0.53)
0.011 (0.28)
0.008 (0.20)
0.003 (0.08)
0.050 (1.27)
TYP
0.244 (6.19)
0.224 (5.69)
Lead Coplanarity : 0.004 (0.10) MAX
NOTE
All dimensions are in inches (millimeters)
PIN DEFINITIONS
Pin Number
Pin Name
Pin function description
1 NC Not connected
2 C Phototransistor Collector
3 E Phototransistor Emitter
4 NC Not connected
5
GND
Ground
6
COMP
Error Amplifier Compensation. This pin is the output of the error amplifier. *
7 FB Voltage Feedback. This pin is the inverting input to the error amplifier
8 LED Anode LED. This pin is the input to the light emitting diode.
* The compensation network must be attached between pins 6 and 7.
© 2003 Fairchild Semiconductor Corporation
Page 1 of 13
4/10/03
TYPICAL APPLICATION
FAN4803
V1 PWM
Control
OPTICALLY ISOLATED
ERROR AMPLIFIER
FOD2712
FOD2712
28
6
37
5
VO
R1
R2
ABSOLUTE MAXIMUM RATINGS (TA = 25°C Unless otherwise specified.)
Parameter
Symbol
Value
Units
Storage Temperature
Operating Temperature
Reflow Temperature Profile (refer to fig. 21)
Input Voltage
Input DC Current
Collector-Emitter Voltage
Emitter-Collector Voltage
Collector Current
Input Power Dissipation (note 1)
Transistor Power Dissipation (note 2)
Total Power Dissipation (note 3)
TSTG
TOPR
VLED
ILED
VCEO
VECO
IC
PD1
PD2
PD3
-55 to +125
-40 to +85
13.2
20
30
7
50
145
85
145
°C
°C
V
mA
V
V
mA
mW
mW
mW
Notes
1. Derate linearly from 25°C at a rate of 2.42 mW/ °C
2. Derate linearly from 25°C at a rate of 1.42 mW/ °C.
3. Derate linearly from 25°C at a rate of 2.42 mW/ °C.
4. Functional operation under these conditions is not implied. Permanent damage may occur if the device is subjected to conditions
outside these ratings.
© 2003 Fairchild Semiconductor Corporation
Page 2 of 13
4/10/03
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제조업체: Fairchild Semiconductor
( fairchild )
FOD2712 amplifier
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[ FOD2712.PDF ]
[ FOD2712 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
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