LH1525AT, LH1525AAB, LH1525AABTR
www.vishay.com
Vishay Semiconductors
1 Form A Solid-State Relay
SMD
S
S'
FEATURES
• Extremely low operating current
• High speed operation
• Isolation test voltage 5300 V
RMS
• Current limit protection
• High surge capability
• DC only option
• Clean bounce free switching
• Low power consumption
1
2
3
S
6
DC
5
S'
4
DIP
• Surface mountable
• Material categorization: For definitions of compliance
please see
www.vishay.com/doc?99912
i179041-2
DESCRIPTION
The LH1525 relay are SPST normally open switches (1 form
A) that can replace electromechanical relays in many
applications. The relay requires a minimal amount of LED
drive current to operate, making it ideal for battery powered
and power consumption sensitive applications. The relay
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, comprised of a photodiode array,
switch-control circuitry, and MOSFET switches. In addition,
the relay employs current-limiting circuitry, enabling it to
pass lightning surge testing as per ANSI/TIA-968-B and
other regulatory surge requirements when overvoltage
protection is provided. The relay can be configured for
AC/DC or DC-only operation.
APPLICATIONS
• General telecom switching
• Battery powered switch applications
• Industrial controls
• Programmable controllers
• Instrumentation
Note
• See “solid-state relays” (application note 56)
AGENCY APPROVALS
• UL1577 file no. E52744 system code H, double protection
• CSE certification 093751
• BSI no. 7979, BSI no. 7980
• FIMKO 25149
ORDERING INFORMATION
L
H
1
5
2
5
#
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
LH1525AAB
LH1525AABTR
LH1525AT
Rev. 1.9, 21-Aug-12
Document Number: 83823
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
LH1525AT, LH1525AAB, LH1525AABTR
www.vishay.com
Vishay Semiconductors
TEST CONDITION
SYMBOL
I
F
V
R
I
L
≤
50 μA
VALUE
50
8
UNIT
mA
V
ABSOLUTE MAXIMUM RATINGS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
INPUT
LED input ratings: continuous forward current
LED input ratings: reverse voltage
OUTPUT
Output operation (each channel):
DC or peak AC load voltage
Continuous DC load current,
bidirectional operation pin 4 to 6
Continuous DC load current,
unidirectional operation pins 4, 6 (+) to pin 5 (-)
SSR
Ambient operating temperature range
Storage temperature range
Pin soldering temperature
(1)
Input to output isolation test voltage
Power dissipation
t = 10 s max.
t=1s
T
amb
T
stg
T
sld
V
ISO
P
diss
- 40 to + 85
- 40 to + 150
260
5300
550
°C
°C
°C
V
RMS
mW
V
L
I
L
I
L
400
125
250
V
mA
mA
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, each pole
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, t = 100 ms
I
F
= 1.5 mA
I
F
= 1.5 mA, I
L
= ± 50 mA
I
F
= 1.5 mA, I
L
= 100 mA
I
F
= 0 mA, V
L
= ± 100 V
pin 4 (±) to 6 (±)
I
F
= 1.5 mA, t = 5 ms, V
L
= 7 V
I
F
= 0 mA, V
L
= ± 100 V
I
F
= 0 mA, V
L
= ± 400 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.
0.33
MAX.
0.5
1.40
36
8.25
270
200
1
UNIT
mA
mA
V
Ω
Ω
GΩ
mA
nA
μA
pF
pF
μV
pF
0.001
0.8
17
4.25
170
0.23
1.16
26
7
2000
185
0.67
0.096
22
6.42
0.2
0.75
Off-state leakage current
Output capacitance
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
= 1.5 mA, I
L
= 50 mA
I
F
= 5 mA, I
L
= 50 mA
I
F
= 1.5 mA, I
L
= 50 mA
I
F
= 5 mA, I
L
= 50 mA
SYMBOL
t
on
t
on
t
off
t
off
MIN.
TYP.
1.25
0.22
0.6
1.1
1.5
1
MAX.
UNIT
ms
ms
ms
ms
Rev. 1.9, 21-Aug-12
Document Number: 83823
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
LH1525AT, LH1525AAB, LH1525AABTR
www.vishay.com
Vishay Semiconductors
TEST CONDITION
IEC 68 part 1
DIN VDE 0109
Insulation group llla
Transient overvoltage
Recurring peak voltage
V
IO
= 500 V
Methode a, V
pd
= V
IORM
x 1.875
CTI
V
IOTM
V
IORM
R
IS
R
IS
R
IS
V
pd
T
SI
I
SI
P
SO
Measured from input terminals to output
terminals, shortest distance through air
Measured from input terminals to output
terminals, shortest distance path along body
SYMBOL
VALUE
40/85/21
2
175
8000
890
≥
10
12
≥
10
9
≥
10
11
175
300
700
≥
7
≥
7
≥
0.4
1669
V
peak
V
peak
W
W
W
V
peak
°C
mA
mW
mm
mm
mm
UNIT
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
Minimum external air gap (clearance)
Minimum external tracking (creepage)
Insulation thickness
TYPICAL CHARACTERISTICS
(T
amb
= 25 °C, unless otherwise specified)
120
120
LED Forward Current (mA)
100
100
80
60
40
20
0
T = 8 °C
T = 25 °C
T = - 40 °C
Load Current (mA)
80
60
40
20
0
- 40
17331
I
Fon
= 3 mA to
10 mA
I
Fon
= 2 mA
I
Fon
= 1 mA
I
Fon
= 0.5 mA
I
Fon
= 0.3 mA
- 20
0
20
40
60
80
0
ilh1525at_02
0.5
1
1.5
2
Ambient Temperature (°C)
LED Forward Voltage (V)
Fig. 1 - Recommended Operating Conditions
1.6
Fig. 3 - LED Forward Current vs. Forward Voltage
LED Reverse Current (µA)
LED Forward Voltage (V)
1.5
1.4
1.3
1.2
1.1
I
F
= 1 mA
I
F
= 2 mA
I
F
= 5 mA
I
F
= 10 mA
- 20
0
20
40
I
F
= 20 mA
I
F
= 50 mA
10
8
6
4
2
0
85 °C
25 °C
- 40 °C
1.0
- 40
ilh1525at_01
60
80
0
ilh1525at_03
20
40
60
80
Ambient Temperature (°C)
LED Reverse Voltage (V)
Fig. 2 - LED Voltage vs. Temperature
Fig. 4 - LED Reverse Current vs. LED Reverse Voltage
Rev. 1.9, 21-Aug-12
Document Number: 83823
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
LH1525AT, LH1525AAB, LH1525AABTR
www.vishay.com
Vishay Semiconductors
300
LED Forward Current for Switch
Turn-on (%), Norm. to 25 °C
900
700
500
300
100
I
L
= 100 mA
250
Load Current (mA)
200
150
100
50
- 40 °C
25 °C
85 °C
IF = 1.5 mA
0
- 20
0
20
40
60
80
0
ilh1525at_07
- 100
- 40
1
2
3
4
5
6
7
17330
Ambient Temperature (°C)
Load Voltage (V)
Fig. 5 - LED Current for Switch Turn-on vs. Temperature
Fig. 8 - Load Current vs. Load Voltage
Change in R
on
(%), Norm. to 25 °C
40
40
Change in Current Limit (%)
Normalized to 25 °C
30
20
10
0
- 10
- 20
- 30
- 40
- 40
I
L
= 5 mA
I
L
= 50 mA
30
20
10
0
- 10
- 20
- 30
- 40
- 40
I
F
= 5 mA, t = 5 ms
- 20
0
20
40
60
80
- 20
0
20
40
60
80
ilh1525at_05
Temperature (°C)
ilh1525at_08
Ambient Temperature (°C)
Fig. 6 - On-Resistance vs. Temperature
Fig. 9 - Current Limit vs. Temperature
AC/DC On-resistance Variation (%)
Normalized to Data Sheet
R
ON
Specification at I
F
= 5 mA
80
1.21
9
8
7
6
5
4
3
2
1
0
0
1
2
3
4
5
LED Dropout Voltage (V)
1.17
I
L
= 100 mA
1.13
1.09
1.05
1.01
- 40
ilh1525at_06
- 20
0
20
40
60
Temperature (°C)
ilh1525at_09
LED Forward Current (mA)
Fig. 7 - LED Dropout Voltage vs. Temperature
Fig. 10 - Variation in On-resistance vs. LED Current
Rev. 1.9, 21-Aug-12
Document Number: 83823
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
LH1525AT, LH1525AAB, LH1525AABTR
www.vishay.com
Vishay Semiconductors
50
40
0.40
0.35
Insertion Loss (dB)
Capacitance (pF)
I
F
= 0 mA
30
0.30
0.25
0.20
0.15
0.10
0.05
R
L
= 600
Ω
I
L
= 5 mA
20
10
0
0
ilh1525at_10
1
2
3
4
5
6
7
8
9 10
0.00
10
2
ilh1525at_13
10
3
10
4
10
5
10
6
Applied Voltage (V)
Frequency (Hz)
Fig. 11 - Switch Capacitance vs. Applied Voltage
Fig. 14 - Insertion Loss vs. Frequency
120
100
80
60
40
20
0
10
2
ilh1525at_11
60
50
Load Current (µA)
Isolation (dB)
40
30
20
10
0
I
F
= 0 mA
I
L
= < 50 µA
85 °C
25 °C
- 40 °C
R
L
= 50
Ω
V
P
= 10 V
10
3
10
4
10
5
10
6
0
ilh1525at_14
100
200
300
400
500
Frequency (Hz)
Fig. 12 - Output Isolation
Switch Breakdown Voltage (V)
Fig. 15 - Switch Breakdown Voltage vs. Load Current
Leakage Current (mA)
250
200
150
100
50
0
0
ilh1525at_12
85 °C
70 °C
50 °C
25 °C
Change in Breakdown Voltage (%)
Normalized to 25 °C
300
8
6
4
2
0
-2
-4
-6
-8
- 40
- 20
0
20
40
60
80
100
200
300
400
Load Voltage (V)
ilh1525at_15
Ambient Temperature (°C)
Fig. 13 - Leakage Current vs.
Applied Voltage at Elevated Temperatures
Fig. 16 - Switch Breakdown Voltage vs. Temperature
Rev. 1.9, 21-Aug-12
Document Number: 83823
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
