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6
S'S
NC
1
5
2
4
3
SS'
1 Form A High-Voltage Solid-State Relay
LH1550AAB1, LH1550AAB1TR, LH1550AT1
Vishay Semiconductors
SMD
DIP
i179041-2
DESCRIPTION
The LH1550 is robust, ideal for telecom and ground fault
applications. It is an SPST normally open switch (1 form A)
that replaces electromechanical relays in many applications.
It is similar to the LH1540, but has a characteristically higher
On resistance. 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.
FEATURES
• Current limit protection
• Isolation test voltage 5300 V
RMS
• Typical RON 28
• Load voltage 350 V
• Load current 120 mA
• High surge capability
• Clean bounce free switching
• Low power consumption
• SMD lead available on tape and reel
• Compliant to RoHS Directive 2002/95/EC and in
accordance to WEEE 2002/96/EC
APPLICATIONS
• General telecom switching
• Instrumentation
• Industrial controls
AGENCY APPROVALS
UL1577: file no. E52744 system code H, double protection
BSI: 7979/7980
DIN EN: 60747-5-2 (VDE 0884)/60747-5-5 (pending),
available with option 1
FIMKO: 25419
ORDERING INFORMATION
PACKAGE UL, BSI, FIMKO
SMD-6 LH1550AAB1
SMD-6, tape and reel LH1550AAB1TR
DIP-6, thru hole LH1550AT1
ABSOLUTE MAXIMUM RATINGS (T
PARAMETER TEST CONDITION SYMBOL VALUE UNIT
INPUT
LED continuous forward current I
LED reverse voltage I
OUTPUT
DC or peak AC load voltage I
Continuous DC load current bidirectional operation
Peak load current (single shot) t = 100 ms I
Rev. 1.9, 25-Jul-11
LH1550###1TR
PART NUMBER
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
ELECTR.
VARIATION
= 25 °C, unless otherwise specified)
amb
PACKAGE
CONFIG.
10 μA V
R
50 μA V
L
1
NO DC
CONTACT
AT PIN 5
TAPE AND
REEL
F
R
L
I
L
P
DIP
7.62 mm
50 mA
8V
350 V
100 mA
(1)
Document Number: 83841
SMD
> 0.1 mm
Page 2
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LH1550AAB1, LH1550AAB1TR, LH1550AT1
Vishay Semiconductors
ABSOLUTE MAXIMUM RATINGS (T
= 25 °C, unless otherwise specified)
amb
PARAMETER TEST CONDITION SYMBOL VALUE UNIT
SSR
Ambient temperature range T
Storage temperature range T
Pin soldering temperature
Input to output isolation voltage V
(2)
t = 10 s max. T
RMS
t = 1 s, I
= 10 μA V
ISO
Output power dissipation (continuous) P
amb
stg
sld
ISO
diss
- 40 to + 85 °C
- 40 to + 150 °C
260 °C
5300 V
RMS
550 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 current limit performance application note 58 for a discussion on relay operation during transient currents.
(2)
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
= 25 °C, unless otherwise specified)
amb
PARAMETER TEST CONDITION SYMBOL MIN. TYP. MAX. UNIT
INPUT
LED forward current, switch turn-on I
LED forward current, switch turn-off V
LED forward voltage I
= 100 mA, t = 10 ms I
L
= ± 350 V I
L
= 10 mA V
F
Fon
Foff
1.1 2 mA
0.001 1 mA
F
1.15 1.25 1.45 V
OUTPUT
On-resistance, AC: pin 4 (±) to 6 (±) I
Off-resistance I
Current limit AC
(1)
: pin 4 (±) to 6 (±) IF = 5 mA, t = 5 ms, VL = 6 V I
Off-state leakage current
Output capacitance pin 4 to 6
Switch offset I
= 5 mA, IL = 50 mA R
F
= 0 mA, VL = ± 100 V R
F
I
= 0 mA, VL = ± 100 V I
F
I
= 0 mA, VL = ± 350 V I
F
I
= 0 mA, VL = 1 V C
F
I
= 0 mA, VL = 50 V C
F
= 5 mA V
F
ON
OFF
LMT
O
O
OS
28 50
0.5 300 G
170 210 250 mA
0.35 200 nA
0.09 1 μA
O
O
18 pF
7pF
0.3 μV
TRANSFER
Capacitance (input to output) V
= 1 V C
ISO
IO
0.7 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.
SWITCHING CHARACTERISTICS (T
= 25 °C, unless otherwise specified)
amb
PARAMETER TEST CONDITION SYMBOL MIN. TYP. MAX. UNIT
Turn-on time I
Turn-off time I
Rev. 1.9, 25-Jul-11
For technical questions, contact: optocoupleranswers@vishay.com
= 5 mA, IL = 50 mA t
F
= 5 mA, IL = 50 mA t
F
2
on
off
1.1 3 ms
0.7 3 ms
Document Number: 83841
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
Page 3
i1550at_00
80
60
40
20
- 40 - 20 0 20 40 60 80
Ambient Temperature (°C)
0
100
Load Current (mA)
I
Fon
= 2.0 mA
I
Fon
= 3.0 mA
I
Fon
= 4.5 to 20 mA
i1550_01
TA - Ambient Temperature (°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 = 2 mA
I
F
= 5 mA
I
F
= 10 mA
I
F
= 50 mA
I
F
= 20 mA
I
F
= 1 mA
LH1550AAB1, LH1550AAB1TR, LH1550AT1
www.vishay.com
SAFETY AND INSULATION RATINGS
PARAMETER TEST CONDITION SYMBOL VALUE UNIT
Climatic classification IEC 68 part 1 40/85/21
Pollution degree DIN VDE 0109 2
Tracking resistance
(comparative tracking index)
Highest allowable overvoltage Transient overvoltage V
Max. working insulation voltage Recurring peak voltage V
Insulation resistance at 25 °C
Insulation resistance at T
S
Insulation resistance at 100 °C R
Partial discharge test voltage Methode a, V
Safety limiting values maximum values allowed
in the event of a failure
Minimum external air gap (clearance)
Minimum external tracking (creepage)
Case temperature T
Input current I
Output power P
Measured from input terminals to output
terminals, shortest distance through air
Measured from input terminals to output
terminals, shortest distance path along body
Insulation group llla CTI 175
V
= 500 V
IO
= V
pd
x 1.875 V
IORM
Vishay Semiconductors
IOTM
IORM
R
R
pd
IS
IS
IS
SI
SI
SO
8000 V
890 V
12
10
9
10
11
10
1669 V
peak
peak
peak
175 °C
300 mA
700 mW
7mm
7mm
TYPICAL CHARACTERISTICS (T
Fig. 1 - Recommended Operating Conditions
Fig. 2 - LED Voltage vs. Temperature
Rev. 1.9, 25-Jul-11
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
= 25 °C, unless otherwise specified)
amb
40
30
20
10
0
- 10
- 20
- 30
Change in Current Limit (%)
Normalized to 25 °C
- 40
- 40
i1550at_02
- 20 0 20 40 60
TA - Ambient Temperature (°C)
Fig. 3 - Current Limit vs. Temperature
70
60
50
40
30
20
10
0
- 10
- 20
Change in Turn-on Time (%)
Normalized to 25 °C
- 30
- 40
- 40 - 20 0 20 40 60 80
i1550at_03
TA - Ambient Temperature (°C)
IF = 5 mA
I
L
Fig. 4 - Turn-on Time vs. Temperature
3
For technical questions, contact: optocoupleranswers@vishay.com
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
IF = 5 mA
t = 5 ms
80
= 50 mA
Document Number: 83841
Page 4
www.vishay.com
0.35
0.25
3.81
2.79
3.81
3.30
0.051 min.
7.62 typ.
0.9
0.8
2.54 typ.
1 min.
0.55
0.45
6.5
6.3
8.7
8.5
Pin one ID
6
5
4
12
3
18° typ.
8.82
7.62
4° typ.
DIP
ISO method A
i178001
LH1550AAB1, LH1550AAB1TR, LH1550AT1
Vishay Semiconductors
300
IF = 50 mA
200
100
0
LED Forward Current for Switch
Turn-on/off (%)
Normalized to 25 °C
- 100
- 40 - 20 0 20 40 60 80
i1550at_04
TA - Ambient Temperature (°C)
Fig. 5 - LED Current for Switch Turn-on vs. Temperature
60
50
IL = 5 mA
40
30
20
10
0
- 10
- 20
- 30
Change in On-resistance (%)
Normalized to 25 °C
- 40
- 40 - 20 0 20 40 60 80
i1550at_05
TA - Ambient Temperature (°C)
80
75
IF = 5 mA
= 50 mA
I
L
50
25
0
- 25
Change in Turn-off Time (%)
Normalized to 25 °C
- 50
- 40 - 20 0 20 40 60 80
i1550at_06
TA - Ambient Temperature (°C)
Fig. 7 - Turn-off Time vs. Temperature
Fig. 6 - On-resistance vs. Temperature
PACKAGE DIMENSIONS in millimeters
Rev. 1.9, 25-Jul-11
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
For technical questions, contact: optocoupleranswers@vishay.com
4
Document Number: 83841
Page 5
www.vishay.com
SMD
ISO method A
0.99 min.
4°
i178002
2.54
LH1550AAB1, LH1550AAB1TR, LH1550AT1
Vishay Semiconductors
8.71
8.51
1.33
1.22
1.27 typ.
3.81
3.30
Pin one ID
6.50
6.30
0.25
0.10
2.54
1.016
0.508
8 min.
11.05
10.03
9.63
7.62 typ.
18°
8 min.
R 0.25
1.52
0.31
0.20
0.76
1.78
3° to 7°
PACKAGE MARKING
Note
• Tape and reel suffix (TR) is not part of the package marking.
LH1550
V YWW H 68
Rev. 1.9, 25-Jul-11
5
For technical questions, contact: optocoupleranswers@vishay.com
Document Number: 83841
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
Page 6
Legal Disclaimer Notice
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Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
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Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
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contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications.
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Material Category Policy
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as Halogen-Free follow Halogen-Free
requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference
to the IEC 61249-2-21 definition. We confirm that all the products identified as being compliant to IEC 61249-2-21
conform to JEDEC JS709A standards.
Revision: 02-Oct-12
1
Document Number: 91000
Page 7
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Authorized Distributor
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