LH1546AT, LH1546AAB, LH1546AABTR
www.vishay.com
Vishay Semiconductors
1 Form A Solid-State Relay
SMD
FEATURES
S
S
6
DC
5
S'
4
S'
• 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
DIP
1
i179041-2
2
3
• SMD lead available on tape and reel
• Equivalent to CP Clare LCA110
• Compliant to RoHS Directive 2002/95/EC and in
accordance to 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 comprised of a photodiode array, switch
control circuitry and MOSFET switches. In addition, it
employs current-limiting circuitry which meets lightning
surge testing as per ANSI/TIA-968-B and other regulatory
voltage surge requirements when overvoltage protection is
provided.
APPLICATIONS
• General telecom switching
• Instrumentation
• Industrial controls
Note
• See “solid-state relays” (application note 56)
AGENCY APPROVALS
UL1577: file no. E52744 system code H, double protection
CSA:
certification no. 093751
DIN EN: 60747-5-2 (VDE 0884)/60747-5-5 (pending),
available with option 1
BSI:
certification no. 7979/7980
FIMKO: 25419
ORDERING INFORMATION
L
H
1
5
4
6
#
ELECTR.
VARIATION
#
#
T
R
DIP
SMD
PART NUMBER
PACKAGE
CONFIG.
TAPE AND
REEL
7.62 mm
> 0.1 mm
PACKAGE
SMD-6, tubes
SMD-6, tape and reel
DIP-6, tubes
UL, CSA, BSI, FIMKO
LH1546AAB
LH1546AABTR
LH1546AT
Rev. 1.8, 25-Jul-11
1
For technical questions, contact:
optocoupleranswers@vishay.com
Document Number: 83838
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
LH1546AT, LH1546AAB, LH1546AABTR
www.vishay.com
Vishay Semiconductors
TEST CONDITION
SYMBOL
I
F
I
R
10 μA
I
L
50 μA
V
R
V
L
I
L
I
L
VALUE
50
8
350
120
200
UNIT
mA
V
V
mA
mA
ABSOLUTE MAXIMUM RATINGS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
INPUT
LED continuous forward current
LED reverse voltage
OUTPUT
DC or peak AC load voltage
Continuous DC load current at 25 °C,
bidirectional
Continuous DC load current at 25 °C,
unidirectional
SSR
Ambient temperature range
Storage temperature range
Soldering temperature
Isolation test voltage
Isolation resistance
SSR output power dissipation (continuous)
(1)
T
amb
T
stg
t = 10 s max.
for 1 s
V
IO
= 500 V, T
amb
= 25 °C
V
IO
= 500 V, T
amb
= 100 °C
T
sld
V
ISO
R
IO
R
IO
P
diss
- 40 to + 85
- 40 to + 150
260
5300
10
12
10
11
550
°C
°C
°C
V
RMS
mW
Notes
• 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 the time can adversely affect reliability.
(1)
Refer to reflow profile for soldering conditions for surface mounted devices (SMD). Refer to wave profile for soldering conditions for through
hole devices (DIP).
ELECTRICAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
INPUT
LED forward current, switch turn-on
LED forward current, switch turn-off
LED forward voltage
OUTPUT
On-resistance, AC/DC: pin 4 (±) to 6 (±)
On-resistance, DC: pin 4, 6 (+) to 5 (-)
Off-resistance
Current limit AC
(1)
:
TEST CONDITION
I
L
= 100 mA, t = 10 ms
V
L
= ± 350 V
I
F
= 10 mA
I
F
= 5 mA, I
L
= 50 mA
I
F
= 5 mA, I
L
= 50 mA
I
F
= 0 mA, V
L
= ± 100 V
pin 4 (±) to 6 (±)
I
F
= 5 mA, t = 5 ms, V
L
= 6 V
I
F
= 0 mA, V
L
= ± 100 V
I
F
= 0 mA, V
L
= ± 350 V
I
F
= 0 mA, V
L
= 1 V
I
F
= 0 mA, V
L
= 50 V
I
F
= 5 mA
V
ISO
= 1 V
SYMBOL
I
Fon
I
Foff
V
F
R
ON
R
ON
R
OFF
I
LMT
I
O
I
O
C
O
C
O
V
OS
C
IO
MIN.
TYP.
1.1
MAX.
2
1.45
35
10
250
200
1
UNIT
mA
mA
V
G
mA
nA
μA
pF
pF
μV
pF
0.2
1.15
1
1.26
28
7
0.5
170
300
210
0.35
0.096
18
6.7
0.3
0.67
Off-state leakage current
Output capacitance pin 4 to 6
Switch offset
TRANSFER
Capacitance (input to output)
Notes
• 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.
(1)
No DC mode current limit available.
SWITCHING CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
Turn-on time
Turn-off time
TEST CONDITION
I
F
= 5 mA, I
L
= 50 mA
I
F
= 5 mA, I
L
= 50 mA
SYMBOL
t
on
t
off
MIN.
TYP.
1.14
0.71
MAX.
3
3
UNIT
ms
ms
Rev. 1.8, 25-Jul-11
2
For technical questions, contact:
optocoupleranswers@vishay.com
Document Number: 83838
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
LH1546AT, LH1546AAB, LH1546AABTR
www.vishay.com
Vishay Semiconductors
SAFETY AND INSULATION RATINGS
PARAMETER
Climatic classification
Pollution degree
Tracking resistance
(comparative tracking index)
Highest allowable overvoltage
Max. working insulation voltage
Insulation resistance at 25 °C
Insulation resistance at T
S
Insulation resistance at 100 °C
Partial discharge test voltage
Safety limiting values -
maximum values allowed
in the event of a failure
Case temperature
Input current
Output power
Measured from input terminals to output
terminals, shortest distance through air
Measured from input terminals to output
terminals, shortest distance path along body
Methode a, V
pd
= V
IORM
x 1.875
V
IO
= 500 V
TEST CONDITION
IEC 68 part 1
DIN VDE 0109
Insulation group llla
Transient overvoltage
Recurring peak voltage
CTI
V
IOTM
V
IORM
R
IS
R
IS
R
IS
V
pd
T
SI
I
SI
P
SO
SYMBOL
VALUE
40/85/21
2
175
8000
890
10
12
10
9
10
11
1669
175
300
700
7
7
V
peak
V
peak
V
peak
°C
mA
mW
mm
mm
UNIT
Minimum external air gap (clearance)
Minimum external tracking (creepage)
TYPICAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
120
100
10
Load Current (mA)
80
60
40
20
I
FON
= 5.0 to 20 mA
I
FON
= 2.0 mA
I
FON
= 3.0 mA
I
FON
= 4.0 mA
LED Current (µA)
8
6
T = - 40 °C
T = 25 °C
T = 85 °C
4
2
0
- 40
ilh1546at_00
- 20
0
20
40
60
80
0
0
20
40
60
80
100
Ambient Temperature (°C)
ilh1546at_03
Reverse LED Voltage (V)
Fig. 1 - Recommended Operating Conditions
Fig. 3 - LED Reverse Current vs. LED Reverse Voltage
1.6
LED Current for Switch Turn-on (%),
60
45
I
L
= 100 mA
LED Forward Voltage (V)
1.5
I
F
= 20 mA
1.4
1.3
1.2
I
F
= 1.0 mA
1.1 I = 2.0 mA
F
1.0
- 40
Normalized to 25 °C
I
F
= 50 mA
30
15
0
- 15
- 30
- 45
- 40
- 20
0
20
40
60
80
I
F
= 5.0 mA
I
F
= 10 mA
0
20
40
60
80
- 20
ilh1546at_01
T
A
- Ambient Temperature (°C)
ilh1546at_04
Temperature (°C)
Fig. 2 - LED Voltage vs. Temperature
Fig. 4 - LED Current for Switch Turn-on vs. Temperature
Rev. 1.8, 25-Jul-11
3
For technical questions, contact:
optocoupleranswers@vishay.com
Document Number: 83838
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
LH1546AT, LH1546AAB, LH1546AABTR
www.vishay.com
Vishay Semiconductors
1.26
60
50
I
F
= 0 mA
I
L
< 50 µA
LED Forward Voltage (V)
1.22
1.18
1.14
1.10
1.06
1.02
- 40
Load Current (µA)
I
L
= 100 mA
40
30
20
10
0
T = - 40 °C
T = 25 °C
T = 85 °C
- 20
0
20
40
60
80
0
ilh1546at_08
100
200
300
400
500
ilh1546at_05
Temperature (°C)
Breakdown Voltage (V)
Fig. 5 - LED Dropout Voltage vs. Temperature
Fig. 8 - Switch Breakdown Voltage vs. Load Current
300
2.5
Switch Offset Voltage (mV)
I
F
= 5 mA
250
2.0
1.5
1.0
0.5
0.0
I
F
= 5 mA
Current Limit (µA)
200
150
100
50
0
0
1
2
3
4
5
T = - 40 °C
T = 25 °C
T = 85 °C
25
ilh1546at_09
35
45
55
65
75
85
ilh1546at_06
Load Voltage (V)
Temperature (°C)
Fig. 6 - Load Current vs. Load Voltage
Fig. 9 - Switch Offset Voltage vs. LED Current
Change in R
on
(%), Norm. to 25 °C
40
40
30
20
10
0
- 10
- 20
- 30
- 40
- 40
- 20
0
20
40
60
80
I
F
= 5 mA
I
L
= 50 mA
Change in Current Limit (%)
Norm. to 25 °C
30
20
10
0
- 10
- 20
- 30
- 40
- 20
0
20
40
60
80
I
F
= 5 mA
V
L
= 6 V
ilh1546at_07
Temperature (°C)
ilh1546at_10
Temperature (°C)
Fig. 7 - Current Limit vs. Temperature
Fig. 10 - On-resistance vs. Temperature
Rev. 1.8, 25-Jul-11
4
For technical questions, contact:
optocoupleranswers@vishay.com
Document Number: 83838
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
LH1546AT, LH1546AAB, LH1546AABTR
www.vishay.com
Vishay Semiconductors
8
120
100
V
P
= 10 V
R
L
= 50
Ω
AC/DC R
on
Variation (%)
Norm. at I
F
= 5 mA
6
Isolation (dB)
I
F
= 5 mA
4
80
60
40
20
0
10
3
2
0
-2
0
4
8
12
16
20
10
4
10
5
10
6
ilh1546at_11
LED Forward Current (mA)
ilh1546at_14
Frequency (Hz)
Fig. 14 - Output Isolation
Fig. 11 - Variation in On-resistance vs. LED Current
50
40
1000
Leakage Current (nA)
I
F
= 0 mA
I
F
= 0 mA
100 T = 85 °C
T = 70 °C
T = 50 °C
10
Capacitance (pF)
30
20
10
0
0
1
2
2
4
5
1
T = 20 °C
0.1
0
50
100
150
200 250
300 350
ilh1546at_12
Applied Voltage (V)
ilh1546at_15
Load Voltage (V)
Fig. 12 - Switch Capacitance vs. Applied Voltage
Fig. 15 - Leakage Current vs.
Applied Voltage at Elevated Temperatures
0.6
0.5
R
L
= 600
Ω
I
F
= 5 mA
Change in Breakdown Voltage (%)
Norm. to 25 °C
10
4
10
5
8
6
4
2
0
-2
-4
-6
-8
- 10
- 40
- 20
0
20
40
60
80
Insertion Loss (dB)
0.4
0.3
0.2
0.1
0.0
10
2
10
3
ilh1546at_13
Frequency (Hz)
ilh1546at_16
Ambient Temperature (°C)
Fig. 13 - Insertion Loss vs. Frequency
Fig. 16 - Switch Breakdown Voltage vs. Temperature
Rev. 1.8, 25-Jul-11
5
For technical questions, contact:
optocoupleranswers@vishay.com
Document Number: 83838
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
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