LH1546AT, LH1546AAB, LH1546AABTR
www.vishay.com
Vishay Semiconductors
1 Form A Solid-State Relay (Normally Open)
FEATURES
• Current limit protection
• Isolation test voltage 5300 V
RMS
A 1
6
S
1
• Typical R
ON
22
Ω
• Load voltage 350 V
• Load current 120 mA
• Clean bounce free switching
• Low power consumption
• Material categorization: for definitions of compliance
please see
www.vishay.com/doc?99912
C 2
5 DC
3
4
S
2
APPLICATIONS
• General telecom switching
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 GaAlAs LED for actuation control
and MOSFET switches for the output. In addition, it employs
current-limiting circuitry to provide overvoltage protection.
• Instrumentation
• Industrial controls
AGENCY APPROVALS
• UL1577, file no. E52744
ORDERING INFORMATION
L
H
1
5
4
6
#
ELECTR.
VARIATION
#
#
T
R
DIP-6
SMD-6
PART NUMBER
PACKAGE
CONFIG.
TAPE AND
REEL
UL
LH1546AAB
LH1546AABTR
LH1546AT
7.62 mm
> 0.1 mm
PACKAGE
SMD-6, tube
SMD-6, tape and reel
DIP-6, tube
Rev. 1.9, 05-Jul-2018
Document Number: 83838
1
For technical questions, contact:
optocoupleranswers@vishay.com
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
CONDITION
SYMBOL
I
F
V
R
P
diss
V
L
I
L
I
L
P
diss
T
amb
T
stg
t = 10 s max.
T
sld
VALUE
50
5
80
350
120
200
550
-40 to +85
-40 to +150
260
UNIT
mA
V
mW
V
mA
mA
mW
°C
°C
°C
ABSOLUTE MAXIMUM RATINGS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
INPUT
IRED continuous forward current
IRED reverse voltage
Input power dissipation
OUTPUT
DC or peak AC load voltage
Continuous load current (AC/DC configuration)
Continuous load current (DC only configuration)
SSR output power dissipation (continuous)
SSR
Ambient temperature range
Storage temperature range
Soldering temperature
Note
• 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
ELECTRICAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
INPUT
IRED forward current, switch turn-on
IRED forward current, switch turn-off
IRED forward voltage
OUTPUT
On-resistance (AC/DC configuration)
On-resistance (DC only configuration)
Off-resistance
Off-state leakage current
Output capacitance
(AC/DC configuration)
Current limit (AC/DC configuration)
(1)
TRANSFER
Capacitance (input to output)
V
ISO
= 1 V
C
IO
-
0.4
-
pF
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
I
F
= 5 mA, I
L
= 50 mA
I
F
= 5 mA, I
L
= 100 mA
I
F
= 0 mA, V
L
= ± 100 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, 1 MHz
I
F
= 0 mA, V
L
= 50 V, 1 MHz
I
F
= 5 mA, t = 5 ms, V
L
= ± 6 V
R
ON
R
ON
R
OFF
I
O
I
O
C
O
C
O
I
limit
-
-
0.5
-
-
-
-
170
22
5.2
5000
<1
6
39
6
300
35
10
-
200
1000
-
-
450
Ω
Ω
GΩ
nA
nA
pF
pF
mA
I
L
= 100 mA, t = 10 ms
V
L
= 350 V
I
F
= 10 mA
I
Fon
I
Foff
V
F
-
0.05
-
0.3
0.15
1.36
2
-
1.45
mA
mA
V
TEST CONDITION
SYMBOL
MIN.
TYP.
MAX.
UNIT
PIN CONFIGURATION
AC/DC configuration
A
1
C
2
6
Load (±)
DC only configuration
A
1
C
2
6
Load (+)
5
Do not connect
5
Load (-)
3
4
Load (±)
3
4
Fig. 1 - Pin Configuration
Rev. 1.9, 05-Jul-2018
Document Number: 83838
2
For technical questions, contact:
optocoupleranswers@vishay.com
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
I
F
= 5 mA, I
L
= 50 mA
I
F
= 5 mA, I
L
= 50 mA
SYMBOL
t
on
t
off
MIN.
-
-
TYP.
0.13
0.05
MAX.
3
3
UNIT
ms
ms
SWITCHING CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
Turn-on time
Turn-off time
Input
A
1
C
2
90 %
3
6
V
L
5
Output
4
Output
t
on
t
off
10 %
Fig. 2 - Timing Schematic
SAFETY AND INSULATION RATINGS
PARAMETER
Climatic classification
Pollution degree
Comparative tracking index
Maximum rated withstanding isolation voltage
Maximum transient isolation voltage
Maximum repetitive peak isolation voltage
Isolation resistance
Output safety power
Input safety current
Safety temperature
Creepage distance
Clearance distance
Insulation thickness
Input to output test voltage, method B
Input to output test voltage, method A
V
IORM
x 1.875 = V
PR
, 100 % production test
with t
M
= 1 s, partial discharge < 5 pC
V
IORM
x 1.6 = V
PR
, 100 % sample test
with t
M
= 10 s, partial discharge < 5 pC
DTI
V
PR
V
PR
TEST CONDITION
According to IEC 68 part 1
According to DIN VDE 0109
Insulation group IIIa
According to UL1577, t = 1 min
According to DIN EN 60747-5-5
According to DIN EN 60747-5-5
V
IO
= 500 V, T
amb
= 25 °C
V
IO
= 500 V, T
amb
= 100 °C
CTI
V
ISO
V
IOTM
V
IORM
R
IO
R
IO
P
SO
I
SI
T
S
SYMBOL
VALUE
40 / 85 / 21
2
175
5300
8000
890
≥
10
12
≥
10
11
700
240
175
≥
7
≥
7
≥
0.4
1669
1424
V
RMS
V
peak
V
peak
Ω
Ω
mW
mA
°C
mm
mm
mm
V
peak
V
peak
UNIT
Note
• As per IEC 60747-5-5, § 7.4.3.8.2, this optocoupler is suitable for “safe electrical insulation” only within the safety ratings. Compliance with
the safety ratings shall be ensured by means of protective circuits
Rev. 1.9, 05-Jul-2018
Document Number: 83838
3
For technical questions, contact:
optocoupleranswers@vishay.com
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
250
P
SO
- Output
Safety
Power (mW)
800
I
SI
- Input
Safety
Current (mA)
-50 -25
0
25
50
75 100 125 150 175
600
200
150
100
50
0
-50 -25
0
25
50
75 100 125 150 175
400
200
0
T
amb
- Ambient Temperature (°C)
Fig. 3 - Safety Power Dissipation vs. Ambient Temperature
T
amb
- Ambient Temperature (°C)
Fig. 4 - Safety Input Current vs. Ambient Temperature
TYPICAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
60
140
I
F
- Forward Current (mA)
120
I
L
- Load Current (mA)
50
T = 85 °C
40
T = 25 °C
30
20
10
0
0
0.5
1.0
1.5
2.0
T = -40 °C
100
80
60
40
20
I
F
> 5 mA
0
-40
-20
0
20
40
60
80
100
T
amb
- Ambient Temperature (°C)
V
F
- Forward Voltage (V)
Fig. 7 - Forward Current vs. Forward Voltage
Fig. 5 - Maximum Load Current vs. Ambient Temperature
1.7
2.5
Normalized Forward Current
for
Switch
Turn-On
V
F
- Forward Voltage (V)
1.6
1.5
1.4
1.3
1.2
1.1
1.0
-40
-20
0
20
40
60
80
100
I
F
= 2 mA
I
F
= 5 mA
I
F
= 10 mA
I
L
= 100 mA
2.0
1.5
1.0
0.5
Normalized to T
amb
= 25 °C
0
-40
-20
0
20
40
60
80
100
T
amb
- Ambient Temperature (°C)
Fig. 6 - Forward Voltage vs. Ambient Temperature
T
amb
- Ambient Temperature (°C)
Fig. 8 - Normalized Forward Current for Switch Turn-On vs.
Ambient Temperature
Rev. 1.9, 05-Jul-2018
Document Number: 83838
4
For technical questions, contact:
optocoupleranswers@vishay.com
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
2.0
2.0
Normalized On-Resistance
Turn-On Time (ms)
1.5
I
F
= 5.0 mA
I
L
= 50 mA
I
L
= 50 mA
1.5
T = 85 °C
1.0
T = 25 °C
0.5
T = -40 °C
0
1.0
0.5
Normalized to T
amb
= 25 °C
0
-40
-20
0
20
40
60
80
100
0
10
20
30
40
50
T
amb
- Ambient Temperature (°C)
Fig. 9 - Normalized On-Resistance vs. Ambient Temperature
I
F
- Forward Current (mA)
Fig. 12 - Turn-On Time vs. Forward Current
60
2.0
Switch
Capacitance (pF)
50
40
30
20
10
0
0
Normalized Turn-On Time
I
F
= 0 mA
f = 1 MHz
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
Normalized to T
amb
= 25 °C
-40
-20
0
20
40
60
80
100
I
F
= 5 mA
10
20
30
40
50
60
Applied Voltage (V)
Fig. 10 - Switch Capacitance vs. Applied Voltage
T
amb
- Ambient Temperature (°C)
Fig. 13 - Normalized Turn-On Time vs. Ambient Temperature
100
0.20
I
F
= 0 mA
T = 85 °C
0.16
I
L
= 50 mA
T = 85 °C
Off-State Leakage Current (nA)
Turn-Off Time (ms)
10
T = 25 °C
1
0.12
T = 25 °C
0.08
T = -40 °C
0.04
0
0.1
T = -40 °C
0.01
0
100
200
300
0
10
20
30
40
50
V
L
- Load Voltage (V)
Fig. 11 - Off-State Leakage Current vs. Load Voltage
I
F
- Forward Current (mA)
Fig. 14 - Turn-Off Time vs. Forward Current
Rev. 1.9, 05-Jul-2018
Document Number: 83838
5
For technical questions, contact:
optocoupleranswers@vishay.com
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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