LH1544AAC, LH1544AACTR, LH1544AB
Vishay Semiconductors
Dual 1 Form A Solid State Relay (Low Capacitance)
FEATURES
DIP
S1
S1'
• Dual channel, LH1541 type
• Low capacitance switch (5 pF)
• Isolation test voltage 5300 V
RMS
S2
S2'
• Extremely high off-resistance
• Load voltage 200 V
• Clean bounce free switching
• Low power consumption
• High reliability monolithic detector
• Compliant to RoHS Directive 2002/95/EC and in
accordance to WEEE 2002/96/EC
S1
SMD
8
S1' S2
7
6
S2'
5
i179034_2
i179034_9
1
2
3
4
V
D E
APPLICATIONS
• Instrumentation
- Thermocouple switching
- Analog multiplexing
• Reed relay replacement
• Programmable logic controllers
• Data acquisition
• Test equipment
DESCRIPTION
These dual SSRs (LH1544, dual 1 form A) are SPST normally
open switches which can replace electromechanical relays
in many applications. The relays provide a low-capacitance,
high-voltage switch contact with high off-resistance and low
switch-offset voltage. These characteristics, combined with
high-speed actuation, result in an SSR which is ideal for
small signal and DC instrumentation applications.
The relays are constructed by using a GaAlAs LED for
actuation control and an integrated monolithic die for the
switch output. The die is comprised of a photodiode array,
switch-control circuity, and low-capacitance MOSFET
switches.
AGENCY APPROVALS
file no. E52744 system code H, double
protection
CSA:
certification no. 093751
BSI/BABT: certification no. 7980
DIN EN:
60747-5-2 (VDE 0884)/60747-5-5 (pending),
available with option 1
FIMKO:
approval
UL1577:
ORDERING INFORMATION
L
H
1
5
4
4
A
ELECTR.
VARIATION
#
#
T
R
DIP
SMD
PART NUMBER
PACKAGE
CONFIG.
TAPE AND
REEL
7.62 mm
> 0.1 mm
PACKAGE
SMD-8, tubes
SMD-8, tape and reel
DIP-8, tubes
UL, CSA, BSI, VDE, FIMKO
LH1544AAC
LH1544AACTR
LH1544AB
Document Number: 83835
Rev. 1.6, 17-Mar-11
For technical questions, contact:
optocoupleranswers@vishay.com
www.vishay.com
1
This datasheet is subject to change without notice.
THE PRODUCT DESCRIBED HEREIN AND THIS DATASHEET ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
LH1544AAC, LH1544AACTR, LH1544AB
Vishay Semiconductors
Dual 1 Form A Solid State Relay
(Low Capacitance)
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, one pole operating
Continuous DC load current, two poles operating
SSR
Peak load current (single shot)
Ambient temperature range
Storage temperature range
Pin soldering temperature
(1)
TEST CONDITION
SYMBOL
I
F
VALUE
50
8
200
55
40
100
- 40 to + 85
- 40 to + 150
260
5300
1600
600
UNIT
mA
V
V
mA
mA
mA
°C
°C
°C
V
RMS
V
mW
I
R
10 μA
I
L
50 μA
V
R
V
L
I
L
I
L
t = 100 ms
I
P
T
amb
T
stg
t = 10 s max.
dry air, dust free, at sea level
T
sld
V
ISO
P
diss
Input to output isolation voltage
Pole-to-pole isolation voltage (S1 to S2)
(2)
Output power dissipation (continuous)
Notes
•
(1)
(2)
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.
Refer to reflow profile for soldering conditions for surface mounted devices (SMD). Refer to wave profile for soldering conditions for through hole
devices (DIP).
Breakdown occurs between the output pins external to the package.
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
Off-resistance
Off-state leakage current
Output capacitance
Output capacitance pin 4 to 6
Pole-to-pole Capacitance (S1 to S2)
Switch offset
TRANSFER
Capacitance (input to output)
Note
•
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.
TEST CONDITION
I
L
= 100 mA, t = 10 ms
V
L
= ± 150 V
I
F
= 5 mA
I
F
= 5 mA, I
L
= 50 mA
I
F
= 0 mA, V
L
= ± 100 V
I
F
= 0 mA, V
L
= ± 100 V
I
F
= 0 mA, V
L
= ± 200 V
I
F
= 0 mA, V
L
= 1 V
I
F
= 0 mA, V
L
= 50 V
I
F
= 5 mA
I
F
= 5 mA
V
ISO
= 1 V
SYMBOL
I
Fon
I
Foff
V
F
R
ON
R
OFF
I
O
I
O
C
O
C
O
V
OS
C
IO
MIN.
TYP.
0.9
MAX.
2
1.45
160
200
1
UNIT
mA
mA
V
G
nA
μA
pF
pF
pF
μV
pF
0.2
1.1
70
0.5
0.8
1.19
110
10 000
0.01
0
0.5
0.5
0.1
1.1
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.
0.24
0.13
MAX.
0.5
0.5
UNIT
ms
ms
Footnotes
The following information refers to the SSR recommended operation conditions:
- Both relays on with equal load currents. For single relay operation, refer to the LH1541 recommended operating conditions graph.
www.vishay.com
2
For technical questions, contact:
optocoupleranswers@vishay.com
Document Number: 83835
Rev. 1.6, 17-Mar-11
This datasheet is subject to change without notice.
THE PRODUCT DESCRIBED HEREIN AND THIS DATASHEET ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
LH1544AAC, LH1544AACTR, LH1544AB
Dual 1 Form A Solid State Relay
(Low Capacitance)
TYPICAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
Vishay Semiconductors
LED Forward Current for Switch
Turn-on (%), Normalized to 25 °C
50
40
30
20
I
Fon
= 5.0 to 20 mA
10
0
- 40
ilh1544ab_00
160
150
120
90
60
30
0
- 30
- 60
- 40
- 20
0
20
40
60
80
I
L
= 50 mA
Load Current (mA)
I
Fon
= 2.0 mA
I
Fon
= 3.0 mA
I
Fon
= 4.0 mA
- 20
0
20
40
60
80
Ambient Temperature (°C)
ilh1544ab_03
Ambient Temperature (°C)
Fig. 1 - Recommended Operating Conditions
Fig. 4 - LED Current for Switch Turn-on vs. Temperature
1.6
1.5
I
F
= 50 mA
1.4
1.3
1.2
1.1
I
F
= 1 mA
I
F
= 2 mA
I
F
= 20 mA
50
Change in On-resistance (%)
Normalized to 25 °C
LED Forward Voltage (V)
40
30
20
10
0
- 10
- 20
- 30
- 40
- 40
- 20
0
20
40
60
80
I
L
= 50 mA
1.0
- 40
ilh1544ab_01
I
F
= 5 mA
I
F
= 10 mA
0
20
40
60
80
- 20
T
A
- Ambient Temperature (°C)
ilh1544ab_04
Ambient Temperature (°C)
Fig. 2 - LED Voltage vs. Temperature
Fig. 5 - On-Resistance vs. Temperature
1.20
6
LED Forward Voltage (V)
I
L
= 100 mA
1.15
5
Capacitance (pF)
60
80
typ.
1.10
min.
4
3
2
1
0
0
10 20 30 40 50 60 70 80 90 100
1.05
1.00
0.95
- 40
ilh1544ab_02
- 20
0
20
40
Ambient Temperature (°C)
ilh1544ab_05
Applied Voltage (V)
Fig. 3 - LED Dropout Voltage vs. Temperature
Fig. 6 - Switch Capacitance vs. Applied Voltage
Document Number: 83835
Rev. 1.6, 17-Mar-11
For technical questions, contact:
optocoupleranswers@vishay.com
www.vishay.com
3
This datasheet is subject to change without notice.
THE PRODUCT DESCRIBED HEREIN AND THIS DATASHEET ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
LH1544AAC, LH1544AACTR, LH1544AB
Vishay Semiconductors
Dual 1 Form A Solid State Relay
(Low Capacitance)
2.00
1.75
1000
Off-state Leakage Current (nA)
T = 85 °C
100
T = 70 °C
T = 50 °C
10
Insertion Loss (dB)
1.50
1.25
1.00
0.75
0.50
0.25
0
R
L
= 600
Ω
1
0.1
0
40
80
120
160
200
10
2
ilh1544ab_06
10
3
10
4
10
5
17324
Frequency (Hz)
Load Voltage (V)
Fig. 7 - Insertion Loss vs. Frequency
Fig. 10 - Leakage Current vs.
Applied Voltage at Elevated Temperatures
Change in Breakdown Voltage (%)
Normalized to 25 °C
10
5
10
6
10
7
100
80
8
6
4
2
0
-2
-4
-6
-8
- 10
- 40
- 20
0
20
40
60
80
Isolation (dB)
60
40
20
0
10
2
10
3
10
4
V
P
= 10 V
R
L
= 50
Ω
ilh1544ab_07
Frequency (Hz)
Fig. 8 - Output Isolation
ilh1544ab_10
Ambient Temperature (°C)
Fig. 11 - Switch Breakdown Voltage vs. Temperature
1000
3.5
Off-state Leakage Current (nA)
Switch Offset Voltage (µV)
3.0
2.5
2.0
1.5
1.0
0.5
0
I
F
= 5 mA
100
10
T = 25 °C
1
0.1
0
40
80
120
160
200
20
ilh1544ab_11
30
40
50
60
70
80
90
17323
Load Voltage (V)
Fig. 9 - Leakage Current vs. Applied Voltage
Ambient Temperature (°C)
Fig. 12 - Switch Offset Voltage vs. Temperature
www.vishay.com
4
For technical questions, contact:
optocoupleranswers@vishay.com
Document Number: 83835
Rev. 1.6, 17-Mar-11
This datasheet is subject to change without notice.
THE PRODUCT DESCRIBED HEREIN AND THIS DATASHEET ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
LH1544AAC, LH1544AACTR, LH1544AB
Dual 1 Form A Solid State Relay
(Low Capacitance)
Vishay Semiconductors
0.6
2
I
L
= 50 mA
Switch Offset Voltage (µV)
0.5
0.4
0.3
0.2
0.1
0
0
5
10
15
20
25
0
0
ilh1544ab_15
Turn-on Time (ms)
1.5
T = 85 °C
T = 25 °C
T = - 40 °C
0.5
1
10
20
30
40
50
ilh1544ab_12
LED Forward Current (mA)
LED Current (mA)
Fig. 13 - Switch Offset Voltage vs. LED Current
Fig. 16 - Turn-on Time vs. LED Current
70
0.25
I
F
= 5 mA
I
L
= 50 mA
I
F
= 5 mA
Change in Turn-on Time (%)
Normalized to 25 °C
60
50
40
30
20
10
0
- 10
- 20
- 30
- 40
- 40
Turn-off Time (ms)
0.20
0.15
0.10
0.05
0.00
I
L
= 50 mA
T = - 40 °C
T = 25 °C
T = 85 °C
- 20
0
20
40
60
80
17325
0
10
20
30
40
50
ilh1544ab_13
Ambient Temperature (°C)
LED Forward Current (mA)
Fig. 17 - Turn-off Time vs. LED Current
Fig. 14 - Turn-on Time vs. Temperature
160
I
F
= 5 mA
140
I
L
= 50 mA
120
100
80
60
40
20
0
- 20
- 40
- 60
- 80
- 40 - 20
0
Change in Turn-off Time (%)
Normalized to 25 °C
20
40
60
80
ilh1544ab_14
Ambient Temperature (°C)
Fig. 15 - Turn-off Time vs. Temperature
Document Number: 83835
Rev. 1.6, 17-Mar-11
For technical questions, contact:
optocoupleranswers@vishay.com
www.vishay.com
5
This datasheet is subject to change without notice.
THE PRODUCT DESCRIBED HEREIN AND THIS DATASHEET ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
stm32/stm8
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
