PHOTOVOLTAIC SOLID-STATE
RELAY OPTOCOUPLERS
HSR312 HSR312L HSR412 HSR412L
PACKAGE
6
6
CATHODE
SCHEMATIC
ANODE
1
2
3
N/C
6
5
4
DRAIN
DRAIN
1
1
DESCRIPTION
The HSR312 and HSR412 devices consist of a AlGaAs infrared emitting diode optically coupled to a power MOSFET detector
which is driven by a photovoltaic generator. The devices are housed in a 6-pin dual-in-line package. The HSR312L and HSR412L
employ an active current limit circuitry enabling the device to withstand current surge transients.
FEATURES
• 4,000 VRMS Isolation
• Wide operating voltage range
– 250 V (HSR312, HSR312L)
– 400 V (HSR412, HSR412L)
• Solid-State Reliability
• Bounce-Free Operation
• 4000 V ESD Rating (HBM)
• UL, CSA and BABT approval pending
APPLICATIONS
• On/Off Hook Switch • Replacement for Mechanical Relays
• Dial Out Relay • Ring Injection Relay
• General Switching • Ground Start
(T
ABSOLUTE MAXIMUM RATINGS
Parameters Symbol Device Value Units
TOTAL DEVICE
Storage Temperature
Operating Temperature
Lead Solder Temperature
Isolation Surge Voltage
Maximum Input/Output Capacitance
Maximum Input/Output Resistance
© 2003 Fairchild Semiconductor Corporation
= 25°C unless otherwise noted)
A
T
STG
T
OPR
T
SOL
V
ISO
C
IO
R
IO
Page 1 of 8
All -40 to +100 °C
All -40 to +85 °C
All 260 for 10 sec °C
All 4000 Vac(RMS)
All 1.0 pF
All
10
12
Ω
1/28/03
Ω
PHOTOVOLTAIC SOLID-STATE
RELAY OPTOCOUPLERS
HSR312 HSR312L HSR412 HSR412L
ELECTRICAL CHARACTERISTICS
(T
= -40°C to +85°C Unless otherwise specified)
A
INPUT CHARACTERISTICS
Parameters/Test Conditions Connection Symbol Limit HSR312 HSR312L HSR412 HSR412L Units
Control Current Series or Parallel
Control Current for Off-State
Resistance
Series or Parallel
Control Current Range Series or Parallel
Reverse Voltage Series or Parallel
Forward Voltage (I
=10 mA)
F
Series or Parallel
I
F(ON)
I
F(OFF)
I
F
V
V
Max 2.0 2.0 3.0 3.0 mA
Min 0.4 0.4 0.4 0.4 mA
Min 2.0 2.0 3.0 3.0
Max 25 25 25 25
R
F
Min7777V
Max 1.6 1.6 1.6 1.6 V
OUTPUT CHARACTERISTICS
Parameters / Test Conditions Connection Symbol Limit HSR312 HSR312L HSR412 HSR412L Units
V
Operating Voltage Range Series or Parallel
Load Current
T
= +40°C, 5mA control
A
(see fig. 1 & 2)
On-State Resistance
T
= 25°C, 50mA pulsed load,
A
5mA control
Series
Parallel Max 320 300 210 200
Series
Parallel Max 3 4.25 7 9
Off-State Leakage Current
T
= 25°C, ±250V for HSR312/L,
A
Series or Parallel — Max 1.0 1.0 1.0 1.0 µA
±400V for HSR412/L
Current Limit
T
= +25°C, 5mA control
A
Series
Parallel
Turn-On Time
T
= +25°C for 50mA,
A
Series or Parallel
100VDC load, 5mA control
Turn-Off Time
T
= +25°C for 50mA,
A
Series or Parallel
100VDC load, 5mA control
Thermal Offset Voltage
5mA control
Output Capacitance 5V
DC
Series or Parallel — Max N/A N/A 0.5 0.5 mV
Series or Parallel
V
R
I
T
T
OPR
I
L
ON
LMT
ON
OFF
C
O
Max 250 250 400 400
Max 190 170 140 120
Max 10 15 27 35
Min N/A 190 N/A 130
Max N/A 300 N/A 220
Min N/A 330 N/A 260
Max N/A 560 N/A 440
Max 3.0 3.0 2.0 2.0 mS
Max 0.5 0.5 0.5 0.5 mS
Max 50 50 12 12 pF
DC
V
AC(PEAK)
mA
mA
mA
or
ISOLATION CHARACTERISTICS
Characteristics Test Conditions Symbol Limit HSR312 HSR312L HSR412 HSR412L Units
Input-Output Isolation Voltage
© 2003 Fairchild Semiconductor Corporation
V
ISO
Page 2 of 8
Max 4000 4000 4000 4000 V
1/28/03
PHOTOVOLTAIC SOLID-STATE
RELAY OPTOCOUPLERS
HSR312 HSR312L HSR412 HSR412L
20.0
17.5
15.0
(mA)
F
12.5
10.0
85°C
7.5
5.0
25°C
-40°C
FORWARD CURRENT, I
2.5
0.0
1.0 1.1 1.2 1.3 1.4 1.5
FORWARD VOLTAGE, VF (V)
Figure 3. Normalized on Resistance vs. Ambient Temperature
2
Figure 1. Forward Current vs. Forward Voltage
)
Ω
(
NORMALIZED ON RESISTANCE, R
Series Connection
5mA Control
I
ON
= 10mA
D
Normalized at 25
1
0
-40 -20 0 20 40 60 80 100
°C
AMBIENT TEMPERATURE, T
A
HSR412L
(°C)
HSR412
Figure 2. Normalized on Resistance vs. Ambient Temperature
2
)
Series Connection
Ω
5mA Control
(
= 10mA
I
D
ON
Normalized at 25
1
°C
HSR312L
HSR312
NORMALIZED ON RESISTANCE, R
0
-40 -20 0 20 40 60 80 100
AMBIENT TEMPERATURE, TA (°C)
Figure 4. Load Current vs. Voltage Drop
250
Series Connection
200
5mA Control
@25°C, pulsed
150
100
(mA)
DD
50
0
-50
-100
LOAD CURRENT, I
-150
-200
-250
-3 -2 -1 0 1 2 3
VOLTAGE DROP, VDD (V)
HSR312
HSR312L
Figure 5. Load Current vs. Voltage Drop
Series Connection
200
5mA Control
@25°C, pulsed
100
(mA)
DD
0
-100
HSR412L
HSR412
LOAD CURRENT, I
-200
-4 -2 0 2 4
VOLTAGE DROP, VDD (V)
© 2003 Fairchild Semiconductor Corporation
Page 3 of 8
Figure 6. Maximum Load Current Vs Ambient Temperature
202
Vdd = 4V
200
198
(mA)
dd
196
194
192
190
188
186
Maximum Load Current, I
184
182
020406080
Ambient Temperature, TA (°C)
Series Connection
HSR312
I
= 5mA
F
= 2mA
I
F
1/28/03