LH1514AB/LH1514AAC/LH1514AACTR
Vishay Semiconductors
2 Form A Solid State Relay
FEATURES
DIP
SMD
• Load voltage 15 V
• Load current 150 mA
• Isolation test voltage 5300 V
RMS
• Switching capability up to 50 MHz
• Blocking capability dependent upon signal dV/dt
• Low and typical R
ON
5.0
Ω
• 1.0 ms actuation time
• Low power consumption
• Balanced switching
• Clean bounce free switching
• Surface mountable
• Lead (Pb)-free component
• Component in accordance to RoHS 2002/95/EC and
WEEE 2002/96/EC
S1
8
S1
S2
S1'
S2'
1
18835
S1' S2
7
6
S2'
5
2
3
4
DESCRIPTION
The LH1514 is a DPST normally open (2 form A) SSR that
can be used in balanced high-frequency applications like T1
switching. With its low on-resistance and high actuation rate,
the LH1514 is also very attractive as a general-purpose
2 form A SSR for balanced signals.
The relays are constructed using a GaAlAs LED for actuation
control and an integrated monolithic die for the switch output.
The die, fabricated in a dielectrically isolated smart power
BiCMOS, is comprised of a photodiode array, switch control
circuitry, and NMOS switches.
In balanced switching applications, internal circuitry shunts
high-frequency signals between two poles when the SSR is
off. This balanced T termination technique provides high
isolation for the load.
APPLICATIONS
• Protection switching (T1 sparing)
- Digital access cross connects
- D-type channel breaks
- Intraoffice data routing
• Transmission switching
- T1 multiplexing
- DSO (64 kbit/s)
- DS1 (1.544 mbit/s)
- E1, DS1A (2.048 mbit/s)
- DS1C (3.152 mbit/s)
- DS2 (6.312 mbit/s)
• Instrumentation
- Scanners
- Testers
- Measurement equipment
Note
See T1 switching with the LH1514 solid state relay (appnote 67)
AGENCY APPROVALS
UL1577:
CSA :
DIN EN:
file no. E52744 system code H or J, double
protection
certification no. 093751
60747-5-5 (VDE 0884)
ORDER INFORMATION
PART
LH1514AAC
LH1514AACTR
LH1514AB
REMARKS
Gullwing, tubes
Gullwing, tape and reel
Tubes
PACKAGE
SMD-8
SMD-8
DIP-8
Document Number: 83814
Rev. 1.4, 08-May-08
For technical questions, please contact: optocoupler.answers@vishay.com
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111
LH1514AB/LH1514AAC/LH1514AACTR
Vishay Semiconductors
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SSR
LED input ratings: continuous forward current
LED input ratings: reverse voltage
Output operation: DC or peak AC load voltage
Output operation: continuous dc load current,
each pole, two poles operating simultaneously
Ambient operating temperature range
Storage temperature range
Pin soldering temperature
Power dissipation
(2)
2 Form A Solid State Relay
(1)
TEST CONDITION
SYMBOL
I
F
VALUE
50
10
15
150
- 40 to + 85
- 40 to + 150
260
5300
600
UNIT
mA
V
V
mA
°C
°C
°C
V
RMS
mW
I
R
≤
10 µA
I
L
≤
1.0 µA
V
R
V
L
I
L
T
amb
T
stg
t = 10 s max.
T
sld
V
ISO
P
diss
Input to output isolation voltage
Notes
(1)
T
amb
= 25 °C, unless otherwise specified.
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.
(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
PARAMETER
INPUT
LED forward current switch turn-on
LED forward current switch turn-off
LED forward voltage
OUTPUT
On-resistance
Pole-to-pole On-resistance matching
(S1 to S2)
Output off-state bleed-through
(2)
Output off-state leakage
(1)
TEST CONDITION
I
L
= 100 mA, t = 10 ms
V
L
= ± 10 V
I
F
= 10 mA
I
F
= 10 mA, I
L
= ± 50 mA
I
F
= 10 mA, I
L
= ± 50 mA
f = 1.5 MHz square wave
t
r
/t
f
= 5.0 ns (see figure 13)
I
F
= 0 mA, V
L
= ± 5.0 V
I
F
= 0 mA, V
L
= ± 15 V
I
F
= 10 mA, Pins 7, 8 ± 3.0 V,
Pins 5, 6 Gnd
Pins 7, 8 ± 15 V, Pins 5, 6 Gnd
I
F
= 0 mA, V
L
= 0 V
I
F
= 0 mA, V
L
= 0 V
I
F
= 10 mA, V
L
= 0 V
I
F
= 10 mA, I
L
= 20 mA
I
F
= 10 mA, I
L
= 20 mA
SYMBOL
I
Fon
I
Foff
V
F
R
ON
MIN.
TYP.
2.0
MAX.
3.0
1.45
5.0
1.0
100
200 × 10
-9
1.0 ×
10
-6
UNIT
mA
mA
V
Ω
ΔΩ
mV
peak
A
A
µA
µA
pF
pF
pF
0.2
1.15
2.0
1.8
1.26
3.0
0.2
70
I
O
I
O
I
O
I
O
C
O
3 × 10
-12
20 ×
10
-12
Output off-state leakage pole-to-pole
Output capacitance pins 5 to 6, 7 to 8
Pole-to-pole capacitance (S1 to S2)
TRANSFER
Turn-on time
Turn-off time
1.0
2.0
20
20
50
5.0
50
t
on
t
off
0.4
0.6
1.0
1.0
ms
ms
Notes
(1)
T
amb
= 25 °C, unless otherwise specified.
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.
(2)
Guaranteed by component measurement during wafer probe.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
LED forward current, switch turn-on
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112
TEST CONDITION
T
amb
= - 40 °C to + 85 °C
SYMBOL
I
Fon
MIN.
10
TYP.
MAX.
20
UNIT
mA
For technical questions, please contact: optocoupler.answers@vishay.com
Document Number: 83814
Rev. 1.4, 08-May-08
LH1514AB/LH1514AAC/LH1514AACTR
2 Form A Solid State Relay
Vishay Semiconductors
TYPICAL CHARACTERISTICS
T
amb
= 25 °C, unless otherwise specified
4.0
100
I
L
= 100 mA
80
n = 180
LED Forward Current (mA)
3.5
3.0
2.5
2.0
1.5
60
%
40
20
1.0
0.5
- 40 - 20
0
20
40
60
80
0
10
ilh1514ab_04
15
20
25
30
ilh1514ab_01
Ambient Temperature (°C)
Breakdown
Voltage
(V)
Fig. 1 - LED Forward Current for Switch Turn-on/off
Fig. 4 - Breakdown Voltage Distribution Typical
25
100
80
V
P
= 10
V
R
L
= 10
Ω
Leakage Current (pA)
20
Isolation (dB)
15
10
60
40
20
0
5
0
0
4
8
12
16
20
10
5
ilh1514ab_05
10
6
10
7
10
8
ilh1514ab_02
Applied
Voltage
(V)
Frequency (Hz)
Fig. 5 - Output Isolation
Fig. 2 - Leakage Current vs. Applied Voltage
8
0.5
0.4
Change in On-resistance (%)
Normalized
to 25 °C
6
4
2
0
-2
-4
-6
- 40 - 20
0
0
20
40
60
80
10
2
ilh1514ab_06
Insertion Loss (dB)
0.3
0.2
0.1
R
L
= 90
Ω
10
4
10
6
10
8
ilh1514ab_03
Ambient Temperature (°C)
Frequency (Hz)
Fig. 3 - On-Resistance vs. Temperature
Fig. 6 - Insertion Loss (per Pole) vs. Frequency
Document Number: 83814
Rev. 1.4, 08-May-08
For technical questions, please contact: optocoupler.answers@vishay.com
www.vishay.com
113
LH1514AB/LH1514AAC/LH1514AACTR
Vishay Semiconductors
2 Form A Solid State Relay
10
I
L
= 20 mA
8
85
°C
6
25 °C
4
- 40 °C
2
0
0
ilh1514ab_07
1.2
I
L
= 20 mA
1.0
- 40 °C
Turn-on Time (ms)
Turn-off Time (ms)
0.8
25 °C
0.6
85
°C
0.4
0.2
10
20
30
40
50
0
ilh1514ab_10
10
20
30
40
50
LED Forward Current (mA)
LED Forward Current (mA)
Fig. 7 - t
on
vs. LED Forward Current
Fig. 10 - t
off
vs. LED Forward Current
Peak Bleedthrough
Voltage
(mV)
100
80
Control +
Control +
60
Control –
40
Blank
20
0
0
5
10
15
20
25
30
4
5
S2'
3
1
2
DPST
6
S2
8
7
S1
S1'
ilh1514ab_11
ilh1514ab_08
Rise Time (ns)
Fig. 11 - Pin Diagram and Pin Outs
Fig. 8 - Bleed-through Voltage vs. Rise Time
+I
1.1
1.0
t
off
150 mA
I
L
(max.)
4.0
Ω
60 mA
- 0.3
V
-V
0.6
0.5
0.4
0.3
- 40 - 20
ilh1514ab_09
Turn-on/off Time (ms)
0.9
0.8
0.7
I
K
5.0
Ω
0.3
V
- 60 mA
+V
IK
t
on
I
L
(max.)
0
20
40
60
80
-I
ilh1514ab_12
- 150 mA
Ambient Temperature (°C)
Fig. 9 - t
on
/t
off
vs. Temperature
Fig. 12 - Typical On Characteristics
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114
For technical questions, please contact: optocoupler.answers@vishay.com
Document Number: 83814
Rev. 1.4, 08-May-08
LH1514AB/LH1514AAC/LH1514AACTR
2 Form A Solid State Relay
Vishay Semiconductors
T1
interface 1
LH1514
Interface
spare
LH1514
LH1514
1:2
100
Ω
Z0
164
Ω
800
Ω
Inter-
face 1
LH1514 LH1514
LH1514 LH1514
Interface
2
(etc.)
LH1514
90
Ω
LH1514
1:2
164
Ω
Receive
data
Line
interface
LH1514
LH1514
800
Ω
Inter- 2
face
T1line 1
ilh1514ab_14
ilh1514ab_15
Fig. 13 - Protection Switching Application:
T1 Interface Operating; Spare in Test Loopback Mode
Fig. 14 - Multiplex Receive Data (Interface 1, Operating) Features
tr 5.0 ns
tf 5.0 ns
NC
NC
3.0
V
NC
1
2
3
4
8
7
50
Ω
*
6
5
100 mV
max.
100 mV
max.
f = 1.5 MHz
NC
* 50
Ω
load is derived from T1 applications
wher
e a 100
Ω
load is paralleled
with
a 100
Ω
line.
ilh1514ab_13
Fig. 15 - Off-state Bleed-through
Document Number: 83814
Rev. 1.4, 08-May-08
For technical questions, please contact: optocoupler.answers@vishay.com
www.vishay.com
115
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