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| FOD2741A Datasheet, PDF (4/15 Pages) Fairchild Semiconductor – OPTICALLY ISOLATED ERROR AMPLIFIER | |||
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OPTICALLY ISOLATED
ERROR AMPLIFIER
FOD2741A
FOD2741B
FOD2741C
OUTPUT CHARACTERISTICS (TA = 25°C Unless otherwise speciï¬ed.)
Parameter
Test Conditions Symbol
Min
Typ
Max
Unit
Collector dark current
Emitter-collector voltage breakdown
Collector-emitter voltage breakdown
(VCE = 10 V) (Fig. 5)
ICEO
(IE = 100 µA) BVECO
7
(IC = 1.0mA) BVCEO
70
50
nA
V
V
TRANSFER CHARACTERISTICS (TA = 25°C Unless otherwise speciï¬ed.)
Parameter
Test Conditions Symbol Min
Typ
Max
Unit
Current transfer ratio
Collector-emitter
saturation voltage
(ILED = 10 mA, VCOMP = VFB,
VCE = 5 V) (Fig. 6)
CTR
100
(ILED = 10 mA, VCOMP = VFB,
IC = 2.5 mA) (Fig. 6)
VCE (SAT)
200
%
0.4
V
ISOLATION CHARACTERISTICS (TA = 25°C Unless otherwise speciï¬ed.)
Parameter
Test Conditions Symbol Min
Typ
Input-output insulation
leakage current
Withstand insulation
voltage
Resistance (input to output)
(RH = 45%, TA = 25°C, t = 5s,
VI-O = 3000 VDC) (note. 1)
(RH <= 50%, TA = 25°C, t = 1 min)
(notes. 1)
VI-O = 500 VDC (note. 1)
II-O
VISO
RI-O
5000
1012
Max
Unit
1.0
µA
Vrms
Ohm
SWITCHING CHARACTERISTICS (TA = 25°C Unless otherwise speciï¬ed.)
Parameter
Test Conditions Symbol Min
Typ
Bandwidth
(Fig. 7) BW
50
Common mode transient
immunity at output high
(ILED = 0 mA, Vcm = 10 VPP
RL = 2.2 k⦠(Fig. 8) (note. 2)
CMH
1.0
Common mode transient
immunity at output low
(ILED = 10 mA, Vcm = 10 VPP CML
RL = 2.2 k⦠(Fig. 8) (note. 2)
1.0
Max
Unit
kHZ
kV/µs
kV/µs
Notes
1. Device is considered as a two terminal device: Pins 1,2 3 and 4 are shorted together and Pins 5,6,7 and 8 are shorted together.
2. Common mode transient immunity at output high is the maximum tolerable (positive) dVcm/dt on the leading edge of the com-
mon mode impulse signal, Vcm, to assure that the output will remain high. Common mode transient immunity at output low is
the maximum tolerable (negative) dVcm/dt on the trailing edge of the common pulse signal,Vcm, to assure that the output will
remain low.
© 2003 Fairchild Semiconductor Corporation
Page 4 of 15
12/9/04
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