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參數(shù)資料
| 型號： | 4N55/L4 |
| 廠商： | ISOCOM LTD |
| 元件分類： | 光電耦合器 |
| 英文描述： | 2 CHANNEL LOGIC OUTPUT OPTOCOUPLER, 0.4 Mbps |
| 封裝： | HERMETIC, CERAMIC, 16 PIN |
| 文件頁數(shù)： | 4/5頁 |
| 文件大?。?/td> | 31K |
| 代理商： | 4N55/L4 |
CTR
Current Transfer Ratio
VO=0.4V, IF=16mA,
VCC=4.5V
9
20
%
1, 2
Typical Characteristics
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNIT NOTES
dVF/dTA
Temperature Coefficient
of Forward Voltage
IF=20mA
-1.9
mV/°C
1
CIN
Input Capacitance
VF=0, f=1MHz
125
pF
RI-O
Resistance (Input-Output) VI-O=500Vdc
1E12
ohm
CI-O
Capacitance
(Input-Output)
f=1MHz
1.0
pF
1, 4
II-I
Input-Input Insulation
Leakage Current
RH=45%, VH=500Vdc,
t=5s
1
pA
5
CI-I
Capacitance (Input-Input)
f=1MHz
0.6
pF
hFE
Transistor DC Current
Gain
VO=5V, IO=3mA
130
1
dIO/dIF
Small Signal Current
Transfer Ratio
VCC=5V, VO=2V
20
%
CMH
Common Mode Transient
Immunity at Logic High
Level Output
VCM=10Vp-p,
RL=8.2kohm, IF=0,
VO(min)=2.0V
1000
V/s
1, 6
CML
Common Mode Transient
Immunity at Logic Low
Level Output
VCM=10Vp-p,
RL=8.2kohm, IF=16,
VO(max)=0.8V
-1000
V/s
1, 7
BW
Bandwidth
RL=100ohm
2
MHz
8
Notes
1. Each channel.
2. Current Transfer Ratio is defined as the ratio of output collector current Io to the forward LED input
current If, times 100%. CTR is known to degrade slightly over the unit's lifetime as a function of input
current, temperature, signal duty cycle and system on-time. It is recommended that designers allow at
least 20-25% guardband for CTR degradation.
3. Measured between pins 1 through 8 shorted together and pins 9 through 16 shorted together.
4. Measured between each input pair shorted together and the output pins for that channel shorted
together.
5. Measured between pins 3 and 4 shorted together, and pins 7 and 8 shorted together.
6. CMh is the steepest slope (dV/dt) on the leading edge of the common mode pulse Vcm for which the
output will remain in the logic high state (Vo>2.0V).
4N55, 4N55/L2, L3, L4: Optocoupler, 16 Pin Dual Channel High Speed Hermetically Sealed (Datasheet)
file:///C|/SHRUTI/iscl/4n55.htm (4 of 5) [2/5/2001 5:55:33 PM]
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