VISHAY
LH1529AB/ AAC/ AACTR/ BB/ BAC/
Document Number 83827
Rev. 1.2, 06-Oct-03
Vishay Semiconductors
www.vishay.com
1
8
1
2
3
4
S
5
6
7
S'
i179049
S1
S'
DIP
SMD
Telecom Switch - 1 Form A Solid State Relay
Features
Solid State Relay and Optocoupler in One Pack-
age
Surface Mount Package
l/O Isolation, 5300 V
RMS
LH1529A, CTR Min. = 33 %
LH1529B, CTR Min. = 100 %
Optocoupler
-Bidirectional Current Detection
Solid-state Relay (Equivalent to TS117P)
- Typical R
ON
20
- Load Voltage 350 V
- Load Current 120 mA
- Current Limit Protection
- High Surge Capability
- Linear, AC/DC Operation
- Clean Bounce Free Switching
- Low Power Consumption
- High Reliability Monolithic Receptor
Agency Approvals
UL - File No. E52744
BSI/BABT Cert. No. 7980
FIMKO Approval
Applications
General Telecom Switching
- On/off Hook Control
- Dial Pulse
- Ring Current Detection
- Loop Current Sensing
See Appnote 56
Description
The LH1529A and LH1529B Telecom switches con-
sist of an optically coupled solid state relay (SSR) and
bidirectional input optocoupler. The SSR is ideal for
performing switch hook and dial-pulse switching while
optocoupler performs ring detection and loop current
sensing functions. Both the SSR and optocoupler pro-
vide 5300 V
RMS
of input to output isolation.
Order Information
Part
Remarks
LH1529AB
DIP-8, Tubes
LH1529BB
DIP-8, Tubes
LH1529AAC
SMD-8, Tubes
LH1529BAC
SMD-8, Tubes
LH1529AACTR
SMD-8, Tape and Reel
LH1529BACTR
SMD-8, Tape and Reel
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2
Document Number 83827
Rev. 1.2, 06-Oct-03
VISHAY
LH1529AB/ AAC/ AACTR/ BB/ BAC/
Vishay Semiconductors
Absolute Maximum Ratings, T
amb
= 25 C
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 time can adversely affect reliability.
SSR
Optocoupler
Electrical Characteristics, T
amb
= 25 C
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.
SSR
Parameter
Test condition
Symbol
Value
Unit
LED continuous forward current
I
F
50
mA
LED reverse voltage
I
R
10 A
V
R
5.0
V
DC or peak AC load voltage
I
L
50 A
V
L
350
V
Continuous DC load current
I
L
120
mA
Total power dissipation
P
diss
600
mW
Ambient temperature range
T
amb
- 40 to + 85
C
Storage temperature range
T
stg
- 40 to + 150
C
Soldering temperature
t = 10 s max.
T
sld
260
C
Isolation test voltage ( for 1.0 s)
V
ISO
5300
V
RMS
Isolation resistance
V
IO
= 500 V, T
amb
= 25 C
R
IO
10
12
V
IO
= 500 V, T
amb
= 100 C
R
IO
10
11
Parameter
Test condition
Symbol
Value
Unit
LED continuous forward current
I
F
50
mA
LED reverse voltage
I
R
10 A
V
R
5.0
V
Collector to emitter breakdown
voltage
BV
CEO
30
V
Phototransistor power
dissipation
P
diss
150
mW
Parameter
Test condition
Part
Symbol
Min
Typ.
Max
Unit
LED forward current for switch
turn-on
I
L
= 100 mA, t = 10 ms
I
Fon
0.7
2.0
mA
LED forward current for switch
turn-off
V
L
= 300 V
I
Foff
0.2
0.6
mA
LED forward voltage
I
F
= 10 mA
V
F
1.15
1.26
1.45
V
ON- resistance, AC/DC,
pins 4 () to 6 ()
I
F
= 5.0 mA, I
L
= 50 mA
R
ON
12
20
25
Current limit
I
F
= 5.0 mA, t = 5.0 ms,
V
L
= 6.0 V
LH1529AB
I
limit
230
260
370
mA
LH1529AAC
I
limit
230
260
370
mA
LH1529BB
I
limit
170
210
250
mA
LH1529BAC
I
limit
170
210
250
mA
Off-state leakage current
I
F
= 0 mA, V
L
= 100 V
0.02
200
nA
I
F
= 0 mA, V
L
= 350 V
1.0
A
VISHAY
LH1529AB/ AAC/ AACTR/ BB/ BAC/
Document Number 83827
Rev. 1.2, 06-Oct-03
Vishay Semiconductors
www.vishay.com
3
Optocoupler
Typical Characteristics
(T
amb
= 25
C unless otherwise specified)
Output capacitance
pin 7 to pin 8
I
F
= 0 mA, V
L
= 1 V
55
pF
I
F
= 0 mA, V
L
= 50 V
10
pF
Input/output capacitance
V
ISO
= 1.0 V
C
ISO
1.3
pF
Turn-on time
I
F
= 5.0 mA, I
L
= 50 mA
LH1529AB
t
on
2.0
3.0
ms
LH1529AAC
t
on
2.0
3.0
ms
LH1529BB
t
on
1.3
2.5
ms
LH1529BAC
t
on
1.3
2.5
ms
Turn-off time
I
F
= 5.0 mA, I
L
= 50 mA
LH1529AB
t
off
0.6
3.0
ms
LH1529AAC
t
off
0.6
3.0
ms
LH1529AB
t
off
0.6
2.5
ms
LH1529BB
t
off
0.6
2.5
ms
Parameter
Test condition
Part
Symbol
Min
Typ.
Max
Unit
LED forward voltage
I
F
= 10 mA
V
F
0.9
1.2
1.5
V
Saturation voltage
I
F
= 16 mA, I
C
= 2.0 mA
V
CEsat
0.7
0.5
V
Dark current leakage
I
F
= 0 mA, V
CE
= 5.0 V
I
CEO
500
nA
Trickle current leakage
I
F
= 5.0
A, V
CE
= 5.0 V
I
CEO
1.0
A
DC current transfer ratio
I
F
= 6.0 mA, V
CE
= 0.5 V
LH1529AB
CTR
33
100
%
LH1529AAC
CTR
33
100
%
LH1529BB
CTR
100
165
%
LH1529BAC
CTR
100
165
%
Parameter
Test condition
Part
Symbol
Min
Typ.
Max
Unit
Figure 1. Recommended Operating Conditions
ilh1529ab_00
120
90
60
30
-40
-20
0
20
40
60
80
Ambient Temperature (C)
Load
current
(mA)
0
150
IFON =
5 mA to 20 mA
IFON = 2 mA
IFON = 3 mA
IFON = 4 mA
Figure 2. LED Voltage vs. Temperature
ilh1529ab_01
Ambient Temperature (C)
-40
-20
0
LED
Forward
Voltage
(V)
1.6
1.5
1.4
1.0
20
1.3
60
40
1.2
1.1
80
IF = 50 mA
IF = 20 mA
IF = 1 mA
IF = 2 mA
IF = 5 mA
IF = 10 mA
www.vishay.com
4
Document Number 83827
Rev. 1.2, 06-Oct-03
VISHAY
LH1529AB/ AAC/ AACTR/ BB/ BAC/
Vishay Semiconductors
Figure 3. Current Limit vs. Temperature
Figure 4. Switch Capacitance vs. Applied Voltage
Figure 5. LED Current for Switch Turn-off vs. Temperature
ilh1529ab_02
-40
Change
in
Current
Limit
(%)
Normalized
to
25
C
40
10
30
20
0
-20
-10
-40
-30
-20
0
20
40
60
80
Ambient Temperature (C)
IF = 5 mA
t = 5 ms
VL = SEE ELEC. CHAR.
ilh1529ab_03
0
Capacitance
(pF)
80
60
50
0
40
30
20
10
70
20
40
Applied Voltage (V)
60
100
80
IF = 0 mA
f = 1 MHz
ilh1529ab_04
Ambient Temperature (C)
100
-60
LED
Forward
C
urrent
for
Switch
Turn-ON
(%)
Normalized
to
25
C
80
60
40
-40
-40
20
-20
0
-20
0
20
40
60
80
IL = 100 mA
Figure 6. ON-Resistance vs. Temperature
Figure 7. Insertion Loss vs. Frequency
Figure 8. Leakage Current vs. Applied Voltage at Elevated
Temperatures
ilh1529ab_05
-40
Change
i
n
ON-Resistance
(%)
Normalized
t
o
2
5
C
50
10
30
20
40
-20
-30
-10
-40
0
-20
0
20
40
60
80
Ambient Temperature (C)
IL = 50 mA
ilh1529ab_06
Frequency (Hz)
0.30
0
Insertion
Loss
(dB)
0.25
0.20
0.10
0.05
10 2
10 3
10 4
10 5
0.15
RL = 600
ilh1529ab_07
Load Voltage (V)
3.0
Off-State
Leakage
Current
(nA)
2.5
2.0
1.0
0.5
1.5
0
0
50
100
150
200
250
300
350
400
85 C
70 C
50 C
VISHAY
LH1529AB/ AAC/ AACTR/ BB/ BAC/
Document Number 83827
Rev. 1.2, 06-Oct-03
Vishay Semiconductors
www.vishay.com
5
Figure 9. Output Isolation
Figure 10. Switch Breakdown Voltage vs. Temperature
Figure 11. Leakage Current vs. Applied Voltage
ilh1529ab_08
Frequency (Hz)
100
Isolation
(dB)
80
60
40
20
0
VP = 10 V
RL = 50
102
103
104
105
106
107
ilh1529ab_09
-40
-20
0
20
40
60
80
Ambient Temperature (C)
Change
in
Breakdown
Voltage
(%)
Normalized
to
25
C
8
0
4
2
6
-2
-6
-8
-4
ilh1529ab_10
10
100
1000
10000
0
50
100
150
200
250
300 350
400
Load Voltage (V)
Leakage
(
pA)
IF = 0 mA
TA = 25 C
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