LH1546AT-E3/AAB-E3/AABTR-E3
Document Number 84600
Rev. 1.0, 09-Aug-04
Vishay Semiconductors
www.vishay.com
1
4
6
5
S'
S
DC
1
2
3
S
S'
i179001
DIP
SMD
1 Form A Solid State Relay
Features
Current Limit Protection
Isolation Test Voltage 5300 V
RMS
Typical R
ON
28
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
Equivalent to CP Clare LCA110
Lead-free component
Component in accordance to RoHS 2002/95/EC
and WEEE 2002/96/EC
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)
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.
Customer Specific Requirement
- Order information has been changed to identify that
the product is lead free.
Order Information
Part
Remarks
LH1546AAB-E3
Tubes, SMD-6
LH1546AABTR-E3
Tape and Reel, SMD-6
LH1546AT-E3
Tubes, DIP-6
www.vishay.com
2
Document Number 84600
Rev. 1.0, 09-Aug-04
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
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
Output
Parameter
Test condition
Symbol
Value
Unit
SSR output power dissipation
(continuous)
P
diss
550
mW
LED continuous forward current
I
F
50
mA
LED reverse voltage
I
R
10 A
V
R
8.0
V
DC or peak AC load voltage
I
L
50 A
V
L
350
V
Continuous DC load current at
25 C, Bidirectional
120
mA
Continuous DC load current at
25 C, Unidirectional
200
mA
Ambient temperature range
T
amb
- 40 to + 85
C
Storage temperature range
T
stg
- 40 to + 150
C
Soldering temperature
t = 10 s max
T
sld
260
C
Isolation test voltage
for 1.0 s
V
IO
5300
V
RMS
Isolation resistance
V
IO
= 500 V, T
amb
= 25 C
R
IO
10
12
V
IO
= 500 V, T
amb
= 100 C
R
IO
10
11
Parameter
Test condition
Symbol
Min
Typ.
Max
Unit
LED forward current, switch
turn-on
I
L
= 100 mA, t = 10 ms
I
Fon
1.1
2.0
mA
LED forward current, switch
turn-off
V
L
= 350 V
I
Foff
0.2
1.0
mA
LED forward voltage
I
F
= 10 mA
V
F
1.15
1.26
1.45
V
Parameter
Test condition
Symbol
Min
Typ.
Max
Unit
ON-resistance, ac/dc:
Pin 4 () to 6 ()
I
F
= 5.0 mA, I
L
= 50 mA
R
ON
28
35
ON-resistance, dc:
Pin 4, 6 (+) to 5 (-)
I
F
= 5.0 mA, I
L
= 50 mA
R
ON
7.0
10.0
OFF-resistance
I
F
= 0 mA, V
L
= 100 V
R
OFF
0.5
300
G
Current limit ac/dc
I
F
= 5.0 mA, t = 5.0 ms,
V
L
= 6.0 V
I
LMT
170
210
250
mA
Off-state leakage current
I
F
= 0 mA, V
L
= 100 V
I
O
0.35
200
nA
I
F
= 0 mA, V
L
= 350 V
I
O
0.096
1.0
nA
Output capacitance Pin 4 to 6
I
F
= 0 mA, V
L
= 1.0 V
C
O
18
pF
I
F
= 0 mA, V
L
= 50 V
C
O
6.7
pF
Switch offset
I
F
= 5.0 mA
V
OS
0.3
A
LH1546AT-E3/AAB-E3/AABTR-E3
Document Number 84600
Rev. 1.0, 09-Aug-04
Vishay Semiconductors
www.vishay.com
3
Transfer
Typical Characteristics (Tamb = 25
C unless otherwise specified)
Parameter
Test condition
Symbol
Min
Typ.
Max
Unit
Capacitance (input-output)
V
ISO
= 1.0 V
C
IO
0.67
pF
Turn-on time
I
F
= 5.0 mA, I
L
= 50 mA
t
on
1.14
3.0
ms
Turn-off time
I
F
= 5.0 mA, I
L
= 50 mA
t
off
0.71
3.0
ms
Figure 1. Recommended Operating Conditions
Figure 2. LED Voltage vs. Temperature
ilh1546at_00
80
60
0
40
120
100
20
-40
-20
0
20
40
60
80
Load
Current
(mA)
Ambient Temperature (C)
IFON = 2.0 mA
IFON = 3.0 mA
IFON = 4.0 mA
IFON
= 5.0 to 20 mA
ilh1546at_01
Ambient Temperature, TA (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
IF = 20 mA
IF = 1.0 mA
IF = 2.0 mA
IF = 5.0 mA
IF = 10 mA
IF = 50 mA
Figure 3. LED Reverse Current vs. LED Reverse Voltage
Figure 4. LED Current for Switch Turn-on vs. Temperature
ilh1546at_03
0
2
4
6
8
10
0
20
40
60
80
100
LED
Current
(uA)
Reverse LED Voltage (V)
T = -40 C
T = 25 C
T = 85 C
ilh1546at_04
-45
-30
-15
0
15
30
45
60
-40
-20
0
20
40
60
80
Temperature (C)
LED
Current
for
Switch
Turn-On
(%),
norm.
to
25
C
IL = 100 mA
www.vishay.com
4
Document Number 84600
Rev. 1.0, 09-Aug-04
LH1546AT-E3/AAB-E3/AABTR-E3
Vishay Semiconductors
Figure 5. LED Dropout Voltage vs. Temperature
Figure 6. Load Current vs. Load Voltage
Figure 7. Current Limit vs. Temperature
ilh1546at_05
1.02
1.06
1.1
1.14
1.18
1.22
1.26
-40
-20
0
20
40
60
80
Temperature (C)
LED
forward
Voltage
(V)
IL = 100 mA
ilh1546at_06
0
1
2
3
4
5
Load Voltage (V)
Current
Limit
(
A)
T = -40 C
T = 25 C
T = 85 C
IF = 5 mA
300
250
200
150
100
50
0
ilh1546at_07
40
30
20
10
0
-10
-20
-30
Change
in
Current
Limit
(%)
Norm.
t
o
2
5
C
IF = 5 mA
VL = 6 V
Temperature (C)
-40
-20
0
20
40
60
80
Figure 8. Switch Breakdown Voltage vs. Load Current
Figure 9. Switch Offset Voltage vs. LED Current
Figure 10. ON-Resistance vs. Temperature
ilh1546at_08
60
50
40
30
20
10
0
Load
Current
(
A)
Breakdown Voltage (V)
T = -40 C
T = 25 C
T = 85 C
IF = 0 mA
IL < 50 A
0
100
200
300
400
500
ilh1546at_09
0.0
0.5
1.0
1.5
2.0
2.5
25
35
45
55
65
75
85
Temperature (C)
Switch
Offset
Voltage
(microvolt)
IF = 5 mA
ilh1546at_10
IF = 5 mA
IL = 50 mA
Temperature (C)
Change
in
Ron
(%),
norm.
to
25
C
40
30
20
10
0
-10
-20
-30
-40
-40
-20
0
20
40
60
80
LH1546AT-E3/AAB-E3/AABTR-E3
Document Number 84600
Rev. 1.0, 09-Aug-04
Vishay Semiconductors
www.vishay.com
5
Figure 11. Variation in ON-Resistance vs. LED Current
Figure 12. Switch Capacitance vs. Applied Voltage
Figure 13. Insertion Loss vs. Frequency
ilh1546at_11
-2
0
2
4
6
8
0
4
8
12
16
20
ac/dc
Ron
Variation
(%)
norm.
@
I F
=
5mA
LED Forward current (mA)
IF = 5 mA
ilh1546at_12
0
10
20
30
40
50
0
20
40
60
80
100
Capacitance
(pF)
Applied Voltage (V)
IF = 0 mA
ilh1546at_13
Frequency (Hz)
0.6
0.0
Insertion
Loss
(dB)
0.5
0.4
0.2
0.1
10 2
10 3
10 4
10 5
0.3
RL = 600
IF = 5 mA
Figure 14. Output Isolation
Figure 15. Leakage Current vs. Applied Voltage at Elevated
Temperatures
Figure 16. Switch Breakdown Voltage vs. Temperature
ilh1546at_14
0
20
40
60
80
100
120
Isolation
(dB)
Frequency (Hz)
VP = 10 V
RL = 50
1000
10000
100000
1000000
ilh1546at_15
0.1
1.0
10.0
100.0
1000.0
0
50
100
150
200
250
300
350
Load voltage (V)
Leakage
Current
(nA)
T = 85 C
T = 70 C
T = 50 C
IF = 0 mA
T = 25 C
ilh1546at_16
Change
in
Breakdown
Voltage
(%)
Normalized
to
25
C
8
0
4
2
6
-6
-8
-4
-10
-2
Ambient Temperature (C)
-40
-20
0
20
40
60
80
PDF 
ZIP