Datasheet

©2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
MCT6, MCT61, MCT62 Rev. 1.0.5 4
MCT6, MCT61, MCT62 — Dual Phototransistor Optocouplers
Typical Performance Curves
Fig. 1 Normalized CTR vs. Forward Current
I
F
- FORWARD CURRENT (mA)
051015 20
NORMALIZED CTR
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
V
CE
= 5.0V
T
A
= 25°C
Normalized to
I
F
= 10mA
Fig. 2 Normalized CTR vs. Ambient Temperature
-75 -50 -25 0 25 50 75 100 125
NORMALIZE
D CTR
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Normalized to
I
F
= 10mA
T
A
= 25°C
I
F
= 10mA
I
F
= 20mA
T
A
- AMBIENT TEMPERATURE (°C)
T
A
- AMBIENT TEMPERATURE (°C)
I
F
= 5mA
Fig. 3 Dark Current vs. Ambient Temperature
0255075100 125
I
CEO
- COLLECT
OR-EMITTER
D
ARK CURRENT (µA)
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
V
CE
= 10V
Fig. 4 Switching Speed vs. Load Resistor
R - LOAD RESISTOR (kΩ)
0.1 1 10 100
SWITCHING SPEED (
µs)
V
F
- FORWARD VOLTATGE (V)
0.1
1
10
100
1000
T
off
T
on
T
f
I
F
= 10mA
V
CC
= 10V
T
A
= 25°C
Fig. 6 Collector-Emitter Saturation Voltage
vs. Collector Current
V
CE (SAT)
- COLLECTOR-EMITTER
0.01 0.1 1 10
0.001
0.01
0.1
1
10
100
I
F
= 20mA
I
F
= 2.5mA
I
F
= 10mA
I
F
= 5mA
T
A
= 25°C
I
F
- LED FORWARD CURRENT (mA)
I
C
- COLLECTOR CURRENT (mA)
Fig. 5 LED Forward Voltage vs. Forward Current
110100
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
T
A
= 25°C
T
A
= 55°C
T
A
= 100°C
T
r
SATURATION VOLTAGE (V)