8/10/04
Page 4 of 17
© 2004 Fairchild Semiconductor Corporation
LVTTL/LVCMOS COMPATIBLE LOW INPUT
CURRENT HIGH GAIN SPLIT DARLINGTON
OPTOCOUPLERS
SINGLE CHANNEL: FOD070L FOD270L
DUAL CHANNEL: FOD073L
** All typicals at T
A
= 25°C
1. Current Transfer Ratio is defined as a ratio of output collector current, I
O
, to the forward LED input current, I
F
, times 100%.
2. Pin 7 open. (FOD070L and FOD270L only)
3. Common mode transient immunity in logic high level is the maximum tolerable (positive) dV
CM
/dt on the leading edge of the
common mode pulse signal, V
CM
, to assure that the output will remain in a logic high state (i.e., V
O
>2.0 V). Common mode
transient immunity in logic low level is the maximum tolerable (negative) dV
CM
/dt on the trailing edge of the common mode
pulse signal, V
CM
, to assure that the output will remain in a logic low state (i.e., V
O
<0.8 V).
4. Device is considered a two terminal device: Pins 1, 2, 3 and 4 are shorted together and Pins 5, 6, 7 and 8 are shorted together.
5. For dual channel devices, CI-O is measured by shorting pins 1 and 2 or pins 3 and 4 together and pins 5 through 8 shorted
together.
6. Measured between pins 1 and 2 shorted together, and pins 3 and 4 shorted together.
ISOLATION CHARACTERISTICS (T
A
= 0 to 70°C Unless otherwise specified)
Characteristics Test Conditions Symbol Device Min Typ** Max Unit
Input-output
insulation leakage current
(Relative humidity = 45%)
(T
A
= 25°C, t = 5 s)
(V
I-O
= 3000 VDC)
(Note 4)
I
I-O
ALL 1.0 µA
Withstand insulation
test voltage
(R
H
50%, T
A
= 25°C)
(Note 4) ( t = 1 min.)
V
ISO
FOD070L
FOD073L
2500
V
RMS
FOD270L 5000
Resistance (input to output) (Note 4) (V
I-O
= 500 VDC) R
I-O
ALL 10
12
Capacitance (input to output) (Note 4,5) (f = 1 MHz) C
I-O
ALL 0.7 pF
Input-Input
Insulation leakage current
(RH 45%, V
I-I
= 500 VDC (Note 6) I
I-I
FOD073L 0.005 µA
Input-Input Resistance (V
I-I
= 500 VDC) (Note 6) R
I-I
FOD073L 10
11
Input-Input Capacitance (f = 1 MHz) (Note 6) C
I-I
FOD073L 0.03 pF
NOTES
8/10/04
Page 5 of 17
© 2004 Fairchild Semiconductor Corporation
LVTTL/LVCMOS COMPATIBLE LOW INPUT
CURRENT HIGH GAIN SPLIT DARLINGTON
OPTOCOUPLERS
SINGLE CHANNEL: FOD070L FOD270L
DUAL CHANNEL: FOD073L
TYPICAL PERFORMANCE CURVES
Fig. 1 Input Forward Current vs Forward Voltage
Fig. 2 Current Transfer Ratio vs. Input Forward Current
(FOD270L only)
V
F
- FORWARD VOLTAGE (V)
1.11.00.9 1.2 1.3 1.4 1.5 1.6 1.7
I
F
- FORWARD CURRENT (mA)
0.001
0.01
0.1
1
10
100
I
F
- FORWARD CURRENT (mA)
1100.1
CTR - CURRENT TRANSFER RATIO (%)
0
500
1000
1500
2000
2500
3000
3500
4000
4500
V
O
- OUTPUT VOLTAGE (V)
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
0
20
40
60
80
100
120
140
Fig. 6 DC Transfer Characterstics (FOD073L only)
I
O
- OUTPUT CURRENT (mA)
T
A
= 85°C
T
A
= 70°C
T
A
= 25°C
T
A
= -40°C
T
A
= 0°C
4mA
3.5mA
2.5mA
0.5mA
3mA
2mA
1mA
T
A
= 25°C
V
CC
= 3.3V
I
F
= 5mA
I
F
= 4.5mA
1.5mA
Fig. 5 DC Transfer Charactersitics (FOD070L, FOD270L)
V
O
- OUTPUT VOLTAGE (V)
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
I
O
- OUTPUT CURRENT (mA)
0
20
40
60
80
100
120
140
160
T
A
= 25°C
V
CC
= 3.3V
I
F
= 5mA
I
F
= 4.5mA
4mA
3.5mA
2.5mA
1.5mA
0.5mA
3mA
2mA
1mA
V
O
= 0.4V
V
CC
= 3.3V
T
A
= 25°C
T
A
= 85°C
T
A
= 70°C
T
A
= 25°C
T
A
= 0°C
T
A
= -40°C
Fig. 3 Current Transfer Ratio vs. Input Forward Current
(FOD070L only)
Fig. 4 Current Transfer Ratio vs. Input Forward Current
(FOD073L only)
I
F
- FORWARD CURRENT (mA)
1100.1
CTR - CURRENT TRANSFER RATIO (%)
0
500
1000
1500
2000
2500
3000
3500
4000
4500
I
F
- FORWARD CURRENT (mA)
1100.1
CTR - CURRENT TRANSFER RATIO (%)
0
500
1000
1500
2000
2500
3000
3500
V
O
= 0.4V
V
CC
= 3.3V
T
A
= 25°C
T
A
= 85°C
T
A
= 70°C
T
A
= 25°C
T
A
= 0°C
T
A
= -40°C
V
O
= 0.4V
V
CC
= 3.3V
T
A
= 25°C
T
A
= 85°C
T
A
= 70°C
T
A
= 25°C
T
A
= 0°C
T
A
= -40°C
8/10/04
Page 6 of 17
© 2004 Fairchild Semiconductor Corporation
LVTTL/LVCMOS COMPATIBLE LOW INPUT
CURRENT HIGH GAIN SPLIT DARLINGTON
OPTOCOUPLERS
SINGLE CHANNEL: FOD070L FOD270L
DUAL CHANNEL: FOD073L
TYPICAL PERFORMANCE CURVES
Fig. 7 Supply Current vs Input Forward Current Fig. 8 Output Current vs Input Forward Current
(FOD270L only)
(FOD270L, FOD070L, FOD073L)
I
F
- Input Forward Current (mA)
0.1 1 10
I
CC
- (Per Channel) - Supply Current (mA)
0.01
0.1
1
10
I
F
- Input Forward Current (mA)
0.1 1 10
I
O
- Output Current (mA)
1
10
100
Fig. 9 Output Current vs Input Forward Current
(FOD070L only)
Fig. 11 Propagation Delay vs.
Input Forward Current (FOD070L only)
Fig. 12 Propagation Delay vs.
Ambient Temperature (FOD073L only)
Fig. 10 Output Current vs Input Forward Current
(FOD073L only)
I
F
- Forward Current (mA)
I
F
- Input Forward Current (mA)
0.1 1 10
I
O
- Output Current (mA)
1
10
100
012345678910
T
A
- Ambient Temperature (°C)
-40 -20 0 20 40 60 80 100
t
PHL
- Propagation Delay To Logic Low (
µs)
t
P
- Propagation Delay (
µs)
t
PLH
- Propagation Delay To Logic High (
µs)
0
4
3
2
1
5
44
52
50
48
46
54
I
F
- Forward Current (mA)
0.1 1 10
I
O
- Output Current (mA)
0.1
10
1
100
T
A
= 25°C
V
CC
= 3.3V
FOD270L
or FOD070L
FOD073L
V
O
= 0.4V
V
CC
= 3.3V
T
A
= 25°C
T
A
= 85°C
T
A
= -40°C
T
A
= 0°C
T
A
= 25°C
T
A
= 70°C
V
O
= 0.4V
V
CC
= 3.3V
T
A
= 25°C
T
A
= -40°C
T
A
= 70°C, 85°C
T
A
= 0°C
T
A
= 25°C
t
PLH
t
PLH
t
PHL t
PHL
0
40
30
20
10
50
60
70
V
O
= 0.4V
V
CC
= 3.3V
T
A
= 25°C
T
A
= -40°C
T
A
= 70°C, 85°C
T
A
= 0°C
T
A
= 25°C
T
A
= 25°C
V
CC
= 3.3V
R
L
= 4.7k
1/f = 100µs
Duty Cycle = 10%
V
CC
= 3.3V
IF = 0.5mA
R
L
= 4.7k
1/f = 100µs
Duty Cycle = 10%

FOD270L

Mfr. #:
Manufacturer:
ON Semiconductor / Fairchild
Description:
High Speed Optocouplers SCLIC High Gain Split Darlington
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union