Document Number: 83804
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335
LH1500AT/AAB/AABTR
1 Form A
Solid State Relay
FEATURES
Current Limit Protection
l/O Isolation, 5300 V
RMS
Typical R
ON
20
Load Voltage 350 V
Load Current 150 mA
High Surge Capability
Linear, AC/DC Operation
Clean Bounce Free Switching
Low Power Consumption
High Reliability Monolithic Receptor
SMD Lead Available on Tape and Reel
AGENCY APPROVALS
UL File No. E52744
BSI/BABT Cert. No. 7980
FIMKO Approval
CSA Certification 093751
APPLICATIONS
General Telecom Switching
On/off Hook Control
Ring Delay
Dial Pulse
Ground Start
Ground Fault Protection
Instrumentation
Industrial Controls
See Application Note 56
DESCRIPTION
The LH1500 is robust, ideal for telecom and ground
fault applications. It is a SPST normally open switch (1
Form A) that replaces electromechanical relays in many
applications. It is constructed using a GaAIAs LED for
actuation control and an integrated monolithic die for
the switch output. The die, fabricated in a high-voltage
dielectrically isolated technology, is comprised of a
photodiode array, switch control circuitry and MOSFET
switches. In addition, it employs current-limiting cir-
cuitry which meets FCC 68.302 and other regulatory
voltage surge requirements when overvoltage protec-
tion is provided.
Part Identification
Part Number
Description
LH1500AT
6-pin DIP, Thru Hole
LH1500AAB
6-pin SMD
LH1500AABTR
6-pin SMD, Tape and Reel
.014 (.35)
.010 (.25)
.150 (3.81)
.110 (2.79)
.150 (3.81)
.130 (3.30)
.020 (.051) Min.
.300 (7.62)
Typ.
.035 (0.90)
.031 (0.80)
.100 (2.54) Typ.
.039
(1.00)
Min.
.022 (0.55)
.018 (0.45)
.256 (6.50)
.248 (6.30)
.343 (8.70)
.335 (8.50)
Pin One ID.
6
5
4
1
2
3
18
Typ.
.347 (8.82)
.300 (7.62)
4
Typ.
.343 (8.71)
.335 (8.51)
.256 (6.50)
.248 (6.30)
Pin one I.D.
.039
(0.99)
min.
.150 (3.81)
.130 (3.30)
.100 (2.54)
.052 (1.33)
.048 (1.22)
4
.040 (1.016)
.020 (0.508)
.0098 (.25)
.0040 (.10)
.012 (0.31)
.008 (0.20)
.300 (7.62)
.395 (10.03)
.375 (9.63)
3
to 7
18
min.
.315 (8.00)
typ.
.050 (1.27) typ.
4
6
5
1
2
3
S'
S
DC
S
S'
Package Dimensions in Inches (mm)
DIP
SMD
Document Number: 83804
www.vishay.com
Revision 06-March-02
336
Electrical Characteristics,
T
A
=25
C
Minimum and maximum values are testing requirements. Typical values are characteristics of the device and are the result of
engineering evaluations. Typical values are for information only and are not part of the testing requirements.
Parameter
Symbol
Min.
Typ.
Max.
Units
Test Conditions
Input
LED Forward Current, Switch Turn-on
I
Fon
--
0.9
2.0
mA
I
L
=100 mA, t=10 ms
LED Forward Current, Switch Turn-off
I
Foff
0.2
0.8
--
mA
V
L
300 V
LED Forward Voltage
V
F
1.15
1.25
1.45
V
I
F
=10 mA
Output
ON-resistance, ac/dc: Pin 4 () to 6 ()
R
ON
--
18
25
I
F
=5.0 mA,
I
L
=50 mA
ON-resistance, dc: Pin 4, 6 (+) to 5 (-)
3.0
4.6
6.25
I
F
=5.0 mA,
I
L
=100 mA
OFF-resistance
R
OFF
0.5
300
--
G
I
F
=0 mA,
V
L
=100 V
Current Limit
ac/dc
pin 4 () to 6 ()
I
LMT
230
255
370
mA
I
F
=5.0 mA, t=5.0 ms
V
L
6.0 V
Off-state Leakage Current
I
O
--
0.32
200
nA
I
F
=0 mA,
V
L
=100 V
--
73.4
1.0
mA
I
F
=0 mA,
V
L
=350 V
Output Capacitance, Pin 4 to 6
C
O
--
33
--
pF
I
F
=0 mA,
V
L
=1.0 V
--
10
--
pF
I
F
=0 mA,
V
L
=50 V
Switch Offset
V
OS
--
0.2
--
V
I
F
=5.0 mA
Transfer
Input/Output Capacitance
C
ISO
--
0.71
--
pF
V
ISO
=1.0 V
Turn-on Time
t
on
--
0.338
2.0
ms
I
F
=5.0 mA,
I
L
=50 mA
Turn-off Time
t
off
--
0.63
2.0
ms
I
F
=5.0 mA,
I
L
=50 mA
Absolute Maximum Ratings,
T
A
=25
C
Stresses in excess of the Absolute Maximum Ratings can cause permanent
damage to the device. These are absolute stress ratings only. Functional opera-
tion of the device is not implied at these or any other conditions in excess of
those given in the operational sections of the data sheet. Exposure to maximum
rating conditions for extended periods can adversely affect device reliability.
Ambient Temperature Range ........................................... 40 to +85C
Storage Temperature Range .......................................... 40 to +150C
Soldering Temperature (t=10 s max.) ......................................... 260C
Isolation Test Voltage (for 1.0 s) ........................................... 5300 V
RMS
Isolation Resistance
V
IO
=500 V,
T
A
=25C ............................................................
10
12
V
IO
=500 V,
T
A
=100C ..........................................................
10
11
SSR Output Power Dissipation (continuous)............................ 550 mW
LED Continuous Forward Current ............................................... 50 mA
LED Reverse Voltage (
I
R
10 mA) ................................................. 8.0 V
DC or Peak AC Load Voltage (
I
L
50 mA) .................................... 350 V
Continuous DC Load Current at 25C
Bidirectional...........................................................................150 mA
Unidirectional......................................................................... 250 mA
Recommended Operating Conditions
140
120
100
80
60
40
20
0
-40
-20
0
20
40
60
80
Ambient Temperature (
C)
Load Current (mA)
I
Fon
= 4 to 10 mA
I
Fon
= 2 mA
I
Fon
= 1 mA
Document Number: 83804
www.vishay.com
Revision 06-March-02
337
Typical Performance Characteristics
Figure 1. LED Voltage vs. Temperature
Figure 2. LED Forward Current vs. LED Forward Voltage
Figure 3. LED Reverse Current vs. LED Reverse Voltage
Figure 4. LED Current for Switch Turn-on vs. Temperature
Figure 5. LED Dropout Voltage vs. Temperature
Figure 6. Current Limit vs. Temperature
Ambient Temperature (
C)
LED Forward Voltage (V)
40
20
0
20
40
60
80
1.6
1.5
1.4
1.3
1.2
1.1
1.0
I
F
=1.0 mA
I
F
=20 mA
I
F
=50 mA
I
F
=2.0 mA
I
F
=5.0 mA
I
F
=10 mA
0
20
40
60
80
100
120
LED Forward Current (mA)
0
0.5
1
1.5
2
LED Forward Voltage (V)
T=85C
T=25C
T=-40C
0
2
4
6
8
10
0
8
16
24
32
40
48
LED Reverse Current (
A)
LED Reverse Voltage (V)
T=-40C
T=25C
T=85C
120
90
60
30
0
-30
-40
-20
0
20
40
60
80
Ambient Temperature (
C)
I
L
= 100 mA
LED Forward Current for Switch
T
urn-on (%), Normalized to 25
C
LED Forward Voltage (V)
Temperature (
C)
I
L
=100mA
-40
-20
0
20
40
60
80
1.25
1.2
1.15
1.1
1.05
1
40
40
10
30
20
0
20
10
40
30
20
0
20
40
60
Ambient Temperature (
C
)
80
I
F
= 5.0 mA
t = 5.0 ms
V
L
=
SEE ELEC. CHAR
.
Change in Current Limit (%)
Normalized to 25
C
Document Number: 83804
www.vishay.com
Revision 06-March-02
338
Figure 7. Load Current vs. Load Voltage
Figure 8. ON-Resistance vs. Temperature
Figure 9. Variation in ON-Resistance vs. LED Current
Figure 10. Switch Capacitance vs. Applied Voltage
Figure 11. Insertion Loss vs. Frequency
Figure 12. Leakage Current vs. Applied Voltage
Load Current (mA)
Load Voltage (V)
0
100
200
300
400
0
1
2
3
4
5
T=-40
C
T=25
C
T=85
C
I
F
=5 mA
Change in Ron (%) norm. to 25
C
Temperature (C)
-40
-30
- 20
- 1
0
10
20
3 0
40
- 40
- 20
0
20
40
6 0
80
I
F
=5mA
I
L
=50mA
ON-Resistance Variation (%),
norm. @IF=5mA
LED Forward Current (mA)
-1
0
1
2
3
4
0
4
8
12
16
20
I
L
=50mA
0
10
20
30
40
50
60
70
80
90
100
Applied Voltage (V)
Capacitance (pF)
I
F
=0mA
50
40
30
20
10
0
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
Insertion Loss (dB)
Frequence (Hz)
10
2
10
3
10
4
10
5
R
L
=600
0.01
0.1
1
10
100
1000
0
100
200
300
400
500
Off-State Leakage Current (nA)
Load Voltage (V)
T=85C
T=70C
T=25C
T=50C
I
F
=0mA
Document Number: 83804
www.vishay.com
Revision 06-March-02
339
Figure 13. Output Isolation
Figure 14. Switch Breakdown Voltage vs. Load Current
Figure 15. Switch Breakdown Voltage vs. Temperature
Figure 16. Switch Offset Voltage vs. Temperature
Figure 17. Switch Offset Voltage vs. LED Current
Figure 18. Turn-On Time vs. Temperature
Isolation (dB)
Frequency (Hz)
10
2
10
3
10
4
10
5
10
6
120
100
80
60
40
20
0
V
P
=10V
R
L
=50
Load Current (
A)
Load Voltage (V)
T=-40C
T=25C
T=85C
0
0
10
20
30
40
50
90
180
270
360
450
I
F
=0mA
I
L
<50uA
40
20
0
20
40
60
80
Ambient Temperature (
C)
8
0
4
2
6
2
6
8
4
Change in Breakdown Voltage (%)
Normalized to 25
C
20
40
Ambient Temperature (
C)
3.5
0
50
70
60
30
3.0
1.5
2.0
2.5
0.5
1.0
80
90
I
F
= 5.0 mA
Switch Offset Voltage (
V)
0
10
LED Forward Current (mA)
0.6
0
15
25
20
5
0.5
0.2
0.3
0.4
0.1
Switch Offset Voltage (
V)
30
20
10
0
-10
-20
-30
Temperature (C)
Change in Turn-On Time (%),
norm. to 25
C
I
F
=5 mA
I
L
=50 mA
-40
-20
0
20
40
60
80
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