©2005 Fairchild Semiconductor Corporation www.fairchildsemi.com
HSR312, HSR312L, HSR412, HSR412L Rev. 1.1.3 4
HSR312, HSR312L, HSR412, HSR412L — Photovoltaic Solid-State Relay Optocouplers
Typical Performance Curves
Figure 1. Forward Current vs. Forward Voltage
Figure 3. Normalized on Resistance vs. Ambient Temperature
Figure 2. Normalized on Resistance vs. Ambient Temperature
Figure 4. Load Current vs. Voltage Drop
Figure 5. Load Current vs. Voltage Drop
FORWARD VOLTAGE, V
F
(V)
1.0 1.1 1.2 1.3 1.4 1.5
FORWARD CURRENT, I
F
(mA)
0.0
2.5
5.0
7.5
10.0
12.5
15.0
17.5
20.0
85°C
25°C
-40°C
AMBIENT TEMPERATURE, T
A
(
°C
)
AMBIENT TEMPERATURE, T
A
(
°C
)
-40 -20 0 20 40 60 80 100
NORMALIZED ON RESISTANCE, R
ON
(
Ω
)
NORMALIZED ON RESISTANCE, R
ON
(
Ω
)
0
1
2
HSR312
HSR312L
Series Connection
5mA Control
I
D
= 10mA
Normalized at 25
°C
-40 -20 0 20 40 60 80 100
0
1
2
HSR412
Series Connection
5mA Control
= 10mA
Normalized at 25
°C
HSR412L
VOLTAGE DROP, V
DD
(V)
-3 -2 -1 0 1 2 3
LOAD CURRENT, I
DD
(mA)
VOLTAGE DROP, V
DD
(V)
LOAD CURRENT, I
DD
(mA)
-250
-200
-150
-100
-50
0
50
100
150
200
250
HSR312
HSR312L
HSR412
HSR412L
I
D
Series Connection
5mA Control
@25°
C, pulsed
-4 -2 0 2 4
-200
-100
0
100
200
Series Connection
5mA Control
@25°
C, pulsed
Figure 6. Maximum Load Current Vs Ambient Temperature
AMBIENT TEMPERATURE, T
A
(°C)
020406080
MAXIMUM LOAD CURRENT, I
dd
(mA)
182
184
186
188
190
192
194
196
198
200
202
V
dd
= 4V
I
F
= 2mA
I
F
= 5mA
Series Connection
HSR312
