VISHAY
LH1546AEF/ AEFTR
Document Number 83837
Rev. 1.2, 08-Mar-04
Vishay Semiconductors
www.vishay.com
1
18221
1
2
A
K
4
3
S
S1
S
S'
1 Form A Solid State Relay
Features
Current Limit Protection
Isolation Test Voltage 3000 V
RMS
Typical R
ON
28
Load Voltage 350 V
Load Current 120 mA
High Surge Capability
Linear, AC/DC Operation
Clean Bounce Free Switching
Low Power Consumption
High Reliability Monolithic Receptor
SMD lead available on tape and reel
Equivalent to CPC1035N
Agency Approvals
UL - File No. E52744 System Code O
BSI/BABT Cert. No. 8500 issue 2
Applications
General Telecom Switching
- On/off Hook Control
- Ring Delay
- Dial Pulse
- Ground Start
- Ground Fault Protection
Instrumentation
Industrial Controls
See "Solid State Relays" (Application Note 56)
Description
The LH1546AEF (4 Pin SOP) is robust, ideal for tele-
com and ground fault applications. It is a SPST nor-
mally open switch (1 Form A) that replaces
electromechanical relays in many applications. It is
constructed using a GaAs LED for actuation control
and an integrated monolithic die for the switch output.
The die, fabricated in a high-voltage dielectrically iso-
lated BCDMOS technology, is comprised of a photo-
diode array, switch control circuitry and MOSFET
switches. In addition, it employs current-limiting cir-
cuitry which meets FCC 68.302 and other regulatory
voltage surge requirements when overvoltage protec-
tion is provided.
Order Information
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
Part
Remarks
LH1546AEF
Tubes, SOP-4
LH1546AEFTR
Tape and Reel, SOP-4
Parameter
Test condition
Symbol
Value
Unit
SSR output power dissipation
(continuous)
P
diss
550
mW
LED continuous forward current
I
F
50
mA
LED reverse voltage
I
R
10 A
V
R
6.0
V
DC or peak AC load voltage
I
L
50 A
V
L
350
V
www.vishay.com
2
Document Number 83837
Rev. 1.2, 08-Mar-04
VISHAY
LH1546AEF/ AEFTR
Vishay Semiconductors
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.
Input
Output
Transfer
Continuous DC load current at
25 C, Bidirectional
120
mA
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
3000
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
Min
Typ.
Max
Unit
LED forward current, switch
turn-on
I
L
= 100 mA, t = 10 ms
I
Fon
1.1
2.0
mA
LED forward current, switch
turn-off
V
L
= 300 V
I
Foff
0.2
0.6
mA
LED forward voltage
I
F
= 10 mA
V
F
1.0
1.18
1.45
V
Current limit
I
F
= 5.0 mA, t = 5.0 ms,
V
L
= 6.0 V
I
limit
230
170
250
mA
Parameter
Test condition
Symbol
Min
Typ.
Max
Unit
ON-resistance, ac/dc:
Pin 3 () to 4 ()
I
F
= 5.0 mA, I
L
= 50 mA
R
ON
28
35
OFF-resistance
I
F
= 0 mA, V
L
= 100 V
R
OFF
0.5
5000
G
Off-state leakage current
I
F
= 0 mA, V
L
= 100 V
I
O
0.32
200
nA
I
F
= 0 mA, V
L
= 350 V
I
O
1.0
nA
Output capacitance Pin 3 to 4
I
F
= 0 mA, V
L
= 1.0 V
C
O
55
pF
I
F
= 0 mA, V
L
= 50 V
C
O
10
pF
Parameter
Test condition
Symbol
Min
Typ.
Max
Unit
Capacitance (input-output)
V
ISO
= 1.0 V
C
IO
0.6
pF
Turn-on time
I
F
= 5.0 mA, I
L
= 50 mA
t
on
2.0
3.0
ms
Turn-off time
I
F
= 5.0 mA, I
L
= 50 mA
t
off
0.08
3.0
ms
Parameter
Test condition
Symbol
Value
Unit
VISHAY
LH1546AEF/ AEFTR
Document Number 83837
Rev. 1.2, 08-Mar-04
Vishay Semiconductors
www.vishay.com
3
Typical Characteristics
(T
amb
= 25
C unless otherwise specified)
Fig. 1 LED Voltage vs. Temperature
Fig. 2 LED Current for Switch Turn-on vs. Temperature
Fig. 3 ON-Resistance vs. Temperature
ilh1546aef_01
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 = 1.0 mA
IF = 20 mA
IF = 2.0 mA
IF = 5.0 mA
IF = 10 mA
IF = 50 mA
ilh1546aef_02
Ambient Temperature (C)
100
-60
80
60
40
-40
-40
20
-20
0
-20
0
20
40
60
80
IL = 100 mA
LED
Forward
Current
for
Switch
Turn-on
(%),
Normalized
to
25
C
ilh1546aef_03
-40
0
10
20
30
40
-10
-40
-20
-30
-20
0
20
40
60
Ambient Temperature (C)
80
IF = 5.0 mA
IF = 50 mA
Change
in
R
ON
(%)
Fig. 4 Switch Breakdown Voltage vs. Temperature
Fig. 5 Switch Capacitance vs. Applied Voltage
Fig. 6 Leakage Current vs. Applied Voltage
ilh1546aef_05
-40
-20
0
20
40
60
80
Ambient Temperature (C)
8
0
4
2
6
-2
-6
-8
-4
Change
i
n
B
reakdown
Voltage
(%)
Normalized
to
25
C
ilh1546aef_06
0
20
40
Applied Voltage (V)
80
50
70
60
40
20
0
10
60
30
100
80
Capacitance
(pF)
ilh1546aef_07
0
50
100
Load Voltage (V)
150
200 250
300
350
400
0.1
1.0
10
100
Leakage
(pA
)
T = 25 C
T = 50 C
T = 70 C
T = 85 C
www.vishay.com
4
Document Number 83837
Rev. 1.2, 08-Mar-04
VISHAY
LH1546AEF/ AEFTR
Vishay Semiconductors
Fig. 7 Leakage Current vs. Applied Voltage
Fig. 8 Turn-off Time vs. Temperature
Fig. 9 Turn-on Time vs. LED Current
ilh1546aef_08
0
50
100
Load Voltage (V)
150
200
250
300
350
400
1
10
100
1000
10000
Leakage
(pA)
ilh1546aef_09
-80
-60
-40
-20
0
20
40
60
80
Change
in
T
off
(%)
Normalized
to
25
C
-40
-20
0
20
40
60
Ambient Temperature (C)
80
IF =10 mA
IF =8.0 mA
IF = 6.0 mA
IF = 5.0 mA
IF = 4.0 mA
IF = 3.0 mA
IF = 2.0 mA
ilh1546aef_10
0
1
2
3
4
5
6
7
T
on
(ms)
0
5
10
15
20
25
30
35
40
45
LED Forward Current (mA)
50
T = 85 C
T = 25 C
T = -45 C
VISHAY
LH1546AEF/ AEFTR
Document Number 83837
Rev. 1.2, 08-Mar-04
Vishay Semiconductors
www.vishay.com
5
Package Dimensions in Inches (mm)
i178030
0.190 (4.83)
0.170 (4.32)
0.184 (4.67)
0.164 (4.17)
0.034 (0.86)
0.024 (0.61)
1
4
2
3
0.018 (0.46)
0.014 (0.36)
0.105 (2.67)
0.095 (2.41)
Leads Coplanarity
0.004 (0.10) Max.
0.020 (0.51)
0.010 (0.25)
0.025 (0.63)
0.015 (0.38)
0.220 (5.59)
0.200 (5.08)
40
10
0.008 (0.20)
0.004 (0.10)
0.004 (0.10)
0.000 (0.00)
0.284 (7.21)
0.264 (6.71)
Pin one I.D. (on chamfer
side of package)
0.080 (2.03)
0.075 (1.91)
6
ISO Method A
R .010 (.25)
.036 (.91)
.014 (.36)
.200 (5.08)
.045 (1.14)
.290 (7.37)
.100 (2.54)
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