LH1540AT Datasheet

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LH1540AAB, LH1540AABTR, LH1540AT
www.vishay.com
Vishay Semiconductors
1 Form A Solid-State Relay
FEATURES
S
SMD
S'
S
6
DC
S'
5
4
• Current limit protection
• Isolation test voltage 5300 VRMS
• Typical RON 20 , max. 25 
• Load voltage 350 V
• Load current 120 mA
DIP
• High surge capability
• Clean bounce free switching
• Low power consumption
1
2
3
• SMD lead available on tape and reel
• Compliant to RoHS Directive 2002/95/EC and in
accordance to WEEE 2002/96/EC
i179041-2
APPLICATIONS
DESCRIPTION
• General telecom switching
The LH1540 is robust, ideal for telecom and ground fault
applications. It is an SPST normally open switch (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.
• Instrumentation
• Industrial controls
Note
• See “solid-state relays” (application note 56)
AGENCY APPROVALS
UL1577:
CSA:
BSI:
FIMKO:
DIN EN:
file no. E52744 system code H, double protection
certification no. 093751
certification no. 7979/7980
25419
60747-5-2 (VDE 0884)/60747-5-5 (pending),
available with option 1
ORDERING INFORMATION
L
H
1
5
PART NUMBER
4
0
#
#
ELECTR.
VARIATION
PACKAGE
#
PACKAGE
CONFIG.
T
TAPE AND
REEL
7.62 mm
SMD
> 0.1 mm
UL, CSA, BSI, FIMKO
SMD-6
LH1540AAB
SMD-6, tape and reel
LH1540AABTR
DIP-6, thru hole
Rev. 1.9, 25-Jul-11
DIP
R
LH1540AT
1
Document Number: 83833
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
LH1540AAB, LH1540AABTR, LH1540AT
www.vishay.com
Vishay Semiconductors
ABSOLUTE MAXIMUM RATINGS (Tamb = 25 °C, unless otherwise specified)
PARAMETER
TEST CONDITION
SYMBOL
VALUE
UNIT
IF
50
mA
IR  10 μA
VR
8
V
IL  50 μA
INPUT
LED continuous forward current
LED reverse voltage
OUTPUT
DC or peak AC load voltage
VL
350
V
Continuous DC load current bidirectional operation
IL
120
mA
Continuous DC load current unidirectional operation
IL
250
mA
IP
(1)
mA
Peak load current (single shot)
t = 100 ms
SSR
Ambient temperature range
Tamb
- 40 to + 85
°C
Storage temperature range
Tstg
- 40 to + 150
°C
Pin soldering temperature (2)
Tsld
260
°C
Input to output isolation voltage
t = 10 s max.
VISO
5300
VRMS
Output power dissipation (continuous)
Pdiss
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 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 (Tamb = 25 °C, unless otherwise specified)
PARAMETER
TEST CONDITION
SYMBOL
MIN.
TYP.
MAX.
UNIT
1
2
mA
INPUT
LED forward current, switch turn-on
IL = 100 mA, t = 10 ms
IFon
LED forward current, switch turn-off
VL = ± 300 V
IFoff
0.2
0.9
IF = 10 mA
VF
1.15
1.26
LED forward voltage
mA
1.45
V
OUTPUT
On-resistance AC/DC: pin 4 (±) to 6 (±)
IF = 5 mA, IL = 50 mA
RON
12
20
25

On-resistance DC: pin 4, 6 (+) to 5 (±)
IF = 5 mA, IL = 100 mA
RON
3
5
6.25

Off-resistance
IF = 0 mA, VL = ± 100 V
ROFF
0.5
5000
IF = 5 mA, VL = ± 6 V, t = 5 ms
ILMT
175
IF = 0 mA, VL = ± 100 V
IO
IF = 0 mA, VL = ± 350 V
IO
Current limit AC
(1):
pin 4 (±) to 6 (±)
Off-state leakage current
Output capacitance pin 4 to 6
Switch offset
G
210
250
0.32
200
mA
nA
1
μA
IF = 0 mA, VL = 1 V
CO
55
IF = 0 mA, VL = 50 V
CO
10
pF
IF = 5 mA
VOS
0.15
μV
VISO = 1 V
CIO
0.8
pF
pF
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 (Tamb = 25 °C, unless otherwise specified)
PARAMETER
TEST CONDITION
SYMBOL
TYP.
MAX.
UNIT
Turn-on time
IF = 5 mA, IL = 50 mA
ton
1.2
2
ms
Turn-off time
IF = 5 mA, IL = 50 mA
toff
0.5
2
ms
Rev. 1.9, 25-Jul-11
MIN.
2
Document Number: 83833
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
LH1540AAB, LH1540AABTR, LH1540AT
www.vishay.com
Vishay Semiconductors
SAFETY AND INSULATION RATINGS
PARAMETER
TEST CONDITION
SYMBOL
VALUE
Climatic classification
IEC 68 part 1
40/85/21
Pollution degree
DIN VDE 0109
2
Tracking resistance
(comparative tracking index)
Insulation group llla
Highest allowable overvoltage
Max. working insulation voltage
CTI
175
Transient overvoltage
VIOTM
8000
Vpeak
Recurring peak voltage
VIORM
890
Vpeak
RIS
 1012

VIO = 500 V
RIS
 109

Insulation resistance at 25 °C
Insulation resistance at TS
RIS

Vpd
1669
Case temperature
TSI
175
°C
Input current
ISI
300
mA
PSO
Insulation resistance at 100 °C
Partial discharge test voltage
Safety limiting values maximum values allowed
in the event of a failure
UNIT
Methode a, Vpd = VIORM x 1.875
Output power

1011
Vpeak
700
mW
Minimum external air gap (clearance)
Measured from input terminals to output
terminals, shortest distance through air
7
mm
Minimum external tracking (creepage)
Measured from input terminals to output
terminals, shortest distance path along body
7
mm
TYPICAL CHARACTERISTICS (Tamb = 25 °C, unless otherwise specified)
1.20
LED Forward Voltage (V)
120
Load Current (mA)
100
80
60
40
IFON = 5.0 mA
to 20 mA
IFON = 2.0 mA
IFON = 4.0 mA
IFON = 3.0 mA
20
0
- 40
- 20
0
20
40
60
LED Forward Current for Switch
Turn-on (%), Normalized to 25 °C
LED Forward Voltage (V)
IF = 50 mA
1.4
1.3
1.2
IF = 1.0 mA
1.1 I = 2.0 mA
F
1.0
- 40
i1540at_01
- 20
IF = 5.0 mA
IF = 10 mA
0
20
40
60
80
TA - Ambient Temperature (°C)
1.05
1.00
- 20
0
20
40
60
80
Ambient Temperature (°C)
100
80
IL = 100 mA
60
40
20
0
- 20
- 40
- 60
- 40
i1540at_03
Fig. 2 - LED Voltage vs. Temperature
Rev. 1.9, 25-Jul-11
Min.
Fig. 3 - LED Dropout Voltage vs. Temperature
1.6
IF = 20 mA
1.10
i1540at_02
Fig. 1 - Recommended Operating Conditions
1.5
Typ.
0.95
- 40
80
Ambient Temperature (°C)
i1540at_00
IL = 100 mA
1.15
- 20
0
20
40
60
80
Ambient Temperature (°C)
Fig. 4 - LED Current for Switch Turn-on vs. Temperature
3
Document Number: 83833
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
LH1540AAB, LH1540AABTR, LH1540AT
www.vishay.com
Vishay Semiconductors
80
IF = 5.0 mA
t = 5.0 ms
VL = see elec. char.
30
20
70
10
0
- 10
- 20
50
40
30
20
10
- 30
- 40
- 40
- 20
0
20
40
60
0
80
0
Ambient Temperature (°C)
i1540at_04
20
40
60
80
100
Applied Voltage (V)
i1540at_07
Fig. 8 - Switch Capacitance vs. Applied Voltage
Fig. 5 - Current Limit vs. Temperature
50
Change in On-resistance (%)
Normalized to 25 °C
IF = 0 mA
f = 1.0 MHz
60
Capacitance (pF)
Change in Current Limit (%)
Normalized to 25 °C
40
0.30
40
IL = 50 mA
RL = 600 Ω
0.25
Insertion Loss (dB)
30
20
10
0
- 10
- 20
0.20
0.15
0.10
0.05
- 30
- 40
- 40
- 20
0
20
40
60
0
102
80
104
105
Frequency (Hz)
Fig. 9 - Insertion Loss vs. Frequency
Fig. 6 - On-resistance vs. Temperature
100
1.5
IL = 50 mA
80
1.0
Isolation (dB)
AC/DC On-resistance Variation (%)
Normalized to Datasheet Ron
Specification at IF = 5.0 mA
103
i1540at_08
Ambient Temperature (°C)
i1540at_05
0.5
0
60
VP = 10 V
RL = 50 Ω
40
20
0
102
- 0.5
0
i1540at_06
4
8
12
16
20
LED Forward Current (mA)
104
105
106
107
Frequency (Hz)
Fig. 10 - Output Isolation
Fig. 7 - Variation in On-resistance vs. LED Current
Rev. 1.9, 25-Jul-11
103
i1540at_09
4
Document Number: 83833
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
LH1540AAB, LH1540AABTR, LH1540AT
www.vishay.com
Vishay Semiconductors
3.5
70
Switch Offset Voltage (µV)
Off-state Leakage Current (nA)
80
T = 25 °C
60
50
40
30
20
10
2.5
2.0
1.5
1.0
0.5
0
20
0
0
100
200
300
400
Load Voltage (V)
17321
i1540at_13
50
60
70
80
90
Ambient Temperature (°C)
0.6
Switch Offset Voltage (µV)
140
Off-state Leakage Current (nA)
40
30
Fig. 14 - Switch Offset Voltage vs. Temperature
Fig. 11 - Leakage Current vs. Applied Voltage
120
100
T = 85 °C
80
T = 75 °C
60
40
T = 50 °C
20
0.5
0.4
0.3
0.2
0.1
0
0
0
100
17322
200
300
25
Change in Turn-on Time (%)
Normalized to 25 °c
60
6
4
2
0
-2
-4
-6
- 20
0
20
40
60
50
40
IF = 5.0 mA
IL = 50 mA
30
20
10
0
- 10
- 20
- 30
- 40
- 40
80
Ambient Temperature (°C)
i1540at_15
- 20
0
20
40
60
80
Ambient Temperature (°C)
Fig. 16 - Turn-on Time vs. Temperature
Fig. 13 - Switch Breakdown Voltage vs. Temperature
Rev. 1.9, 25-Jul-11
20
Fig. 15 - Switch Offset Voltage vs. LED Current
8
i1540at_12
15
10
LED Forward Current (mA)
i1540at_14
Load Voltage (V)
-8
- 40
5
0
400
Fig. 12 - Leakage Current vs.
Applied Voltage at Elevated Temperatures
Change in Breakdown Voltage (%)
Normalized to 25 °C
IF = 5.0 mA
3.0
5
Document Number: 83833
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
LH1540AAB, LH1540AABTR, LH1540AT
www.vishay.com
Vishay Semiconductors
1.4
- 40 °C
1.2
Turn-off Time (ms)
Change in Turn-off Time (%)
Normalized to 25 °C
IL = 50 mA
160
140
120
100
80
IF = 5.0 mA
IL = 50 mA
60
40
20
0
- 20
- 40
- 60
- 80
- 40
i1540at_16
1.0
0.8
25 °C
0.6
85 °C
0.4
0.2
10
0
- 20
0
20
80
60
40
20
30
40
50
LED Forward Current (mA)
i1540at_18
Ambient Temperature (°C)
Fig. 17 - Turn-off Time vs. Temperature
Fig. 19 - Turn-off Time vs. LED Current
Turn-on Time (ms)
10
IL = 50 mA
8
- 40 °C
6
25 °C
85 °C
4
2
0
0
i1540at_17
10
20
30
40
50
LED Forward Current (mA)
Fig. 18 - Turn-on Time vs. LED Current
PACKAGE DIMENSIONS in millimeters
DIP
Pin one ID
3
2
1
6.5
6.3
ISO method A
4
5
6
8.7
8.5
7.62 typ.
1 min.
3.81
3.30
4° typ.
18° typ.
0.051 min.
0.9
0.8
0.55
0.45
3.81
2.79
0.35
0.25
8.82
7.62
i178001
2.54 typ.
Rev. 1.9, 25-Jul-11
6
Document Number: 83833
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
LH1540AAB, LH1540AABTR, LH1540AT
www.vishay.com
Vishay Semiconductors
SMD
8.71
8.51
Pin one ID
0.76
6.50
6.30
R 0.25
2.54
1.78
8 min.
11.05
1.52
1.27 typ.
10.03
9.63
ISO method A
1.33
1.22
0.99 min.
7.62 typ.
3.81
3.30
0.25
0.10
3° to 7°
18°
4°
1.016
2.54
0.508
8 min.
0.31
0.20
i178002
PACKAGE MARKING
LH1540
V YWW H 68
Note
• Tape and reel suffix (TR) is not part of the package marking.
Rev. 1.9, 25-Jul-11
7
Document Number: 83833
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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Disclaimer

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RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
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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
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including but not limited to the warranty expressed therein.
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Revision: 13-Jun-16
1
Document Number: 91000
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