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2007 Copyright reserved to Isocom Limited
Page 10 of 12
QC 88000-C001: 2007
Electrical Characteristics (Continued)
VCC = 5V, TA = 25°C, VCM = 50V p-p
RL = 1.5K , IF = 0Ma
Common Mode Transient
Immunity at Logical High
Output Level
(See notes 4, 10 & 12)
CMH
RL = 2.2K , IF = 0mA
CH370
CS700
CSM1700
CSM6730
500
1000
-
V/S
VCC = 5V, TA = 25°C, VCM = 50V p-p
RL = 1.5K , IF = 1.6mA
Common Mode Transient
Immunity at Logical Low
Output Level
(See notes 4, 10 & 12)
CML
RL = 2.2K , IF = 1.6mA
CH370
CS700
CSM1700
CSM6730
500
-1000
-
V/S
Typical Characteristics
TA = 25°C
Parameter
Symbol
Test Conditions
Notes
Min
Type
Max
Units
Resistance
RIO
V10 = 500Vdc
4 & 8
-
10
12
-
Capacitance
CIO
f = 1MHz
4 & 8
-
1.5
-
pF
Input Capacitance
CIN
f = 1MHz, VF = 0
4
-
60
-
pF
Temperature Coefficient
of Forward Voltage
VF
TA
IF = 1.6mA
1
-
-1.8
-
mV/°
C
Input-Input Insulation
Leakage Current
II-I
45% Relative Humidity
VII = 500Vdc, t = 5S
9
-
0.6
-
nA
Resistance
RI-I
VII = 500Vdc
9
-
10
12
-
Capacitance
CI-I
f = 1MHz
9
-
1
-
pF
Notes:
1. The ground pin should be the most negative voltage at the detector side. Keeping VCC as low as possible, but
greater than 2.0V, will provide lowest total IOH over temperature.
2. Output power is collector output plus one fourth of total supply power. Derate at 1.66mW/°C above 110°C.
3. Derate IF at 0.33mA/°C above 110°C.
4. Each channel.
5. Current Transfer Ratio is defined as the ratio of output collector current, IO, to the forward LED input current, IF, times
100%.
6. IOHX is the leakage current resulting from channel to channel optical crosstalk. IF = 2A for channel under test. For all
other channels, IF = 10mA.
7. Input pins are shorted together, and output pins are shorted together.
8. Measured between the LED anode and cathode shorted together and pins at output shorted together.
9. Measured between adjacent input pairs shorted together.
10. CMH is the maximum tolerable common mode transient to assure that the output will remain in a high logic state
(i.e., VO > 2.0V).
11. CML is the maximum tolerable common mode transient to assure that the output will remain in the logic low state
(i.e., VO< 0.8V).
12. In applications where dV/dt may exceed 50,000V/S (such as a static discharge), a series resistor, RCC, should be
included to protect the detector IC’s from destructively high surge currents. The recommended value is
RCC =
1V
k
0.6IF(mA)
13. This is a momentary withstand test, not an operating condition.