Data Sheet

©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
FOD852 Rev. 1.5 2
FOD852 — 4-Pin DIP Photodarlington Output Optocoupler
Safety and Insulation Ratings
As per DIN EN/IEC 60747-5-5, this optocoupler is suitable for “safe electrical insulation” only within the safety limit
data. Compliance with the safety ratings shall be ensured by means of protective circuits.
Note:
1. Safety limit values – maximum values allowed in the event of a failure.
Parameter Characteristics
Installation Classifications per DIN VDE
0110/1.89 Table 1, For Rated Mains Voltage
< 150 V
RMS
I–IV
< 300 V
RMS
I–III
Climatic Classification 30/110/21
Pollution Degree (DIN VDE 0110/1.89) 2
Comparative Tracking Index 175
Symbol Parameter Value Unit
V
PR
Input-to-Output Test Voltage, Method A, V
IORM
x 1.6 = V
PR
,
Type and Sample Test with t
m
= 10 s, Partial Discharge < 5 pC
1360 V
peak
Input-to-Output Test Voltage, Method B, V
IORM
x 1.875 = V
PR
,
100% Production Test with t
m
= 1 s, Partial Discharge < 5 pC
1560 V
peak
V
IORM
Maximum Working Insulation Voltage 850 V
peak
V
IOTM
Highest Allowable Over-Voltage 6000 V
peak
External Creepage  7mm
External Clearance  7mm
DTI Distance Through Insulation (Insulation Thickness)  0.4 mm
T
S
Case Temperature
(1)
175 °C
I
S,INPUT
Input Current
(1)
400 mA
P
S,OUTPUT
Output Power
(1)
700 mW
R
IO
Insulation Resistance at T
S
, V
IO
= 500 V
(1)
> 10
11
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