LH1546AT-E3/AAB-E3/AABTR-E3
Vishay Semiconductors
1 Form A Solid State Relay
DIP
SMD
Features
•
•
•
•
•
•
•
•
•
•
Current Limit Protection
Isolation Test Voltage 5300 V
RMS
Typical R
ON
28
Ω
Load Voltage 350 V
Load Current 120 mA
High Surge Capability
Clean Bounce Free Switching
Low Power Consumption
High Reliability Monolithic Receptor
SMD lead available on tape and reel
S
6
DC
5
S'
4
S
S'
i179001
1
2
3
• Equivalent to CP Clare LCA110
• Lead-free component
• Component in accordance to RoHS 2002/95/EC
and WEEE 2002/96/EC
Description
The LH1546 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 com-
prised of a photodiode array, switch control circuitry
and MOSFET switches. In addition, it employs cur-
rent-limiting circuitry which meets FCC 68.302 and
other regulatory voltage surge requirements when
overvoltage protection is provided.
Agency Approvals
• UL1577, File No. E52744 System Code H or J,
Double Protection
• CSA - Certification 093751
• BSI/BABT Cert. No. 7980
• FIMKO Approval
Applications
General Telecom Switching
- On/off Hook Control
- Ring Delay
- Dial Pulse
- Ground Start
- Ground Fault Protection
Instrumentation
Industrial Controls
See "Solid State Relays" (Application Note 56)
Customer Specific Requirement
- Order information has been changed to identify that
the product is lead free.
Order Information
Part
LH1546AAB-E3
LH1546AABTR-E3
LH1546AT-E3
Remarks
Tubes, SMD-6
Tape and Reel, SMD-6
Tubes, DIP-6
Document Number 84600
Rev. 1.0, 09-Aug-04
www.vishay.com
1
LH1546AT-E3/AAB-E3/AABTR-E3
Vishay Semiconductors
Absolute Maximum Ratings, T
amb
= 25 °C
Stresses in excess of the absolute Maximum Ratings can cause permanent damage to the device. Functional operation of the device is
not implied at these or any other conditions in excess of those given in the operational sections of this document. Exposure to absolute
Maximum Ratings for extended periods of time can adversely affect reliability.
SSR
Parameter
SSR output power dissipation
(continuous)
LED continuous forward current
LED reverse voltage
DC or peak AC load voltage
Continuous DC load current at
25 °C, Bidirectional
Continuous DC load current at
25 °C, Unidirectional
Ambient temperature range
Storage temperature range
Soldering temperature
Isolation test voltage
Isolation resistance
t = 10 s max
for 1.0 s
V
IO
= 500 V, T
amb
= 25 °C
V
IO
= 500 V, T
amb
= 100 °C
T
amb
T
stg
T
sld
V
IO
R
IO
R
IO
I
R
≤
10
µA
I
L
≤
50
µA
Test condition
Symbol
P
diss
I
F
V
R
V
L
Value
550
50
8.0
350
120
200
- 40 to + 85
- 40 to + 150
260
5300
≥
10
12
≥
10
11
Unit
mW
mA
V
V
mA
mA
°C
°C
°C
V
RMS
Ω
Ω
Electrical Characteristics, T
amb
= 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.
Input
Parameter
LED forward current, switch
turn-on
LED forward current, switch
turn-off
LED forward voltage
Test condition
I
L
= 100 mA, t = 10 ms
V
L
= ± 350 V
I
F
= 10 mA
Symbol
I
Fon
I
Foff
V
F
0.2
1.15
Min
Typ.
1.1
1.0
1.26
1.45
Max
2.0
Unit
mA
mA
V
Output
Parameter
ON-resistance, ac/dc:
Pin 4 (±) to 6 (±)
ON-resistance, dc:
Pin 4, 6 (+) to 5 (-)
OFF-resistance
Current limit ac/dc
Off-state leakage current
Output capacitance Pin 4 to 6
Switch offset
Test condition
I
F
= 5.0 mA, I
L
= 50 mA
I
F
= 5.0 mA, I
L
= 50 mA
I
F
= 0 mA, V
L
= ± 100 V
I
F
= 5.0 mA, t = 5.0 ms,
V
L
= 6.0 V
I
F
= 0 mA, V
L
= ± 100 V
I
F
= 0 mA, V
L
= ± 350 V
I
F
= 0 mA, V
L
= 1.0 V
I
F
= 0 mA, V
L
= 50 V
I
F
= 5.0 mA
Symbol
R
ON
R
ON
R
OFF
I
LMT
I
O
I
O
C
O
C
O
V
OS
0.5
170
Min
Typ.
28
7.0
300
210
0.35
0.096
18
6.7
0.3
250
200
1.0
Max
35
10.0
Unit
Ω
Ω
GΩ
mA
nA
nA
pF
pF
µA
www.vishay.com
2
Document Number 84600
Rev. 1.0, 09-Aug-04
LH1546AT-E3/AAB-E3/AABTR-E3
Vishay Semiconductors
Transfer
Parameter
Capacitance (input-output)
Turn-on time
Turn-off time
Test condition
V
ISO
= 1.0 V
I
F
= 5.0 mA, I
L
= 50 mA
I
F
= 5.0 mA, I
L
= 50 mA
Symbol
C
IO
t
on
t
off
Min
Typ.
0.67
1.14
0.71
3.0
3.0
Max
Unit
pF
ms
ms
Typical Characteristics (Tamb = 25
°C
unless otherwise specified)
120
100
Load Current (mA)
LED Current (uA)
10
80
60
40
20
0
-40
IFON
= 5.0 to 20 mA
IFON = 2.0 mA
IFON = 4.0 mA
IFON = 3.0 mA
8
6
T = -40 °C
T = 25 °C
T = 85 °C
4
2
-20
0
20
40
60
80
ilh1546at_03
0
Ambient Temperature (°C)
ilh1546at_00
0
20
40
60
80
100
Reverse LED Voltage (V)
Figure 1. Recommended Operating Conditions
Figure 3. LED Reverse Current vs. LED Reverse Voltage
1.6
LED Current for Switch Turn-On
(%), norm. to 25 °C
LED Forward Voltage (V)
60
45
30
15
0
-15
-30
-45
-40
ilh1546at_04
1.5
1.4
1.3
1.2
1.1
IF = 1.0 mA
IF = 2.0 mA
IF = 5.0 mA
IF = 10 mA
IL = 100 mA
IF = 50 mA
IF = 20 mA
1.0
-40
ilh1546at_01
-20
0
20
40
60
80
-20
0
20
40
60
80
Ambient Temperature, TA (°C)
Temperature (°C)
Figure 2. LED Voltage vs. Temperature
Figure 4. LED Current for Switch Turn-on vs. Temperature
Document Number 84600
Rev. 1.0, 09-Aug-04
www.vishay.com
3
LH1546AT-E3/AAB-E3/AABTR-E3
Vishay Semiconductors
1.26
1.22
1.18
1.14
1.1
1.06
1.02
-40
ilh1546at_05
60
IL = 100 mA
Load Current (µA)
LED forward Voltage (V)
50
40
30
20
10
0
IF = 0 mA
IL < 50
µA
T = -40 °C
T = 25 °C
T = 85 °C
-20
0
20
40
60
80
ilh1546at_08
0
100
200
300
400
500
Temperature (°C)
Breakdown Voltage (V)
Figure 5. LED Dropout Voltage vs. Temperature
Figure 8. Switch Breakdown Voltage vs. Load Current
300
Switch Offset Voltage (microvolt)
2.5
IF = 5 mA
2.0
1.5
1.0
0.5
0.0
25
ilh1546at_09
250
Current Limit (µA)
IF = 5 mA
200
150
100
50
0
0
1
2
3
4
5
T = -40 °C
T = 25 °C
T = 85 °C
35
45
55
65
75
85
ilh1546at_06
Load Voltage (V)
Temperature (°C)
Figure 6. Load Current vs. Load Voltage
Figure 9. Switch Offset Voltage vs. LED Current
Change in Ron (%), norm. to 25 °C
40
Change in Current Limit (%)
Norm. to 25 °C
40
30
20
10
0
-10
-20
-30
-40
-40
-20
0
20
40
60
80
IF = 5 mA
IL = 50 mA
30
20
10
0
-10
-20
-30
-40
IF = 5 mA
VL = 6 V
-20
0
20
40
60
80
ilh1546at_07
Temperature (°C)
ilh1546at_10
Temperature (°C)
Figure 7. Current Limit vs. Temperature
Figure 10. ON-Resistance vs. Temperature
www.vishay.com
4
Document Number 84600
Rev. 1.0, 09-Aug-04
LH1546AT-E3/AAB-E3/AABTR-E3
Vishay Semiconductors
8
120
100
IF = 5 mA
Isolation (dB)
ac/dc Ron Variation (%)
norm. @ IF = 5mA
6
4
VP = 10 V
RL = 50
Ω
80
60
40
20
0
1000
2
0
-2
0
ilh1546at_11
4
8
12
16
20
ilh1546at_14
10000
100000
1000000
LED Forward current (mA)
Frequency (Hz)
Figure 11. Variation in ON-Resistance vs. LED Current
Figure 14. Output Isolation
50
IF = 0 mA
40
1000.0
IF = 0 mA
Leakage Current (nA)
Capacitance (pF)
100.0
T = 85 °C
T = 70 °C
T = 50 °C
30
10.0
20
10
0
0
20
40
60
80
100
Applied Voltage (V)
1.0
T = 25 °C
0.1
0
50
100
150
200
250
300
350
ilh1546at_12
ilh1546at_15
Load voltage (V)
Figure 12. Switch Capacitance vs. Applied Voltage
Figure 15. Leakage Current vs. Applied Voltage at Elevated
Temperatures
0.6
Change in Breakdown Voltage (%)
Normalized to 25 °C
8
RL = 600
Ω
IF = 5 mA
6
4
2
0
-2
-4
-6
-8
-20
0
20
40
60
80
0.5
Insertion Loss (dB)
0.4
0.3
0.2
0.1
0.0
10 2
10 3
10 4
10 5
-10
-40
ilh1546at_16
ilh1546at_13
Frequency (Hz)
Ambient Temperature (°C)
Figure 13. Insertion Loss vs. Frequency
Figure 16. Switch Breakdown Voltage vs. Temperature
Document Number 84600
Rev. 1.0, 09-Aug-04
www.vishay.com
5
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