LH1546AEF/AEFTR
1 Form A
Solid State Relay
FEATURES
• Current Limit Protection
• l/O Isolation, 3000 V
RMS
• Typical
R
ON
20
Ω
• 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
• BSI/BABT Cert. No. 7980
APPLICATIONS
• General Telecom Switching
– On/off Hook Control
– Ring Delay
– Dial Pulse
– Ground Start
– Ground Fault Protection
• Instrumentation
• Industrial Controls
• See App Note 56
DESCRIPTION
The LH1546AEF (4 Pin SOP) is robust, ideal for telecom
and ground fault applications. It is a SPST normally
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 mono-
lithic die for the switch output. The die, fabricated in a
high-voltage dielectrically isolated BCDMOS technol-
ogy, is comprised of a photodiode array, switch control
circuitry and MOSFET switches. In addition, it employs
current-limiting circuitry which meets FCC 68.302 and
other regulatory voltage surge requirements when over-
voltage protection is provided.
Dimensions in Inches (mm)
4
3
A
1
4
S
0.190 (4.83)
0.170 (4.32)
K
2
3
S1
1
2
Pin one I.D. (on chamfer side of package)
0.184 (4.67)
0.164 (4.17)
0.034 (0.86)
0.024 (0.61)
0.080 (2.03)
0.075 (1.91)
6°
0.004 (0.10)
0.000 (0.00)
0.020 (0.51)
0.010 (0.25)
0.008 (0.20)
0.004 (0.10)
0.220 (5.59)
0.200 (5.08)
40°
10°
0.018 (0.46)
0.014 (0.36)
0.105 (2.67)
0.095 (2.41)
Leads Coplanarity
0.004 (0.10) Max.
0.025 (0.63)
0.015 (0.38)
0.284 (7.21)
0.264 (6.71)
Part Identification
Part Number
LH1546AEF
LH1546AEFTR
Description
4-pin SOP, Tubes
4-pin SOP, Tape and Reel
Document Number: 83837
Revision 06-March-02
www.vishay.com
3–173
Recommended Operating Conditions
120
100
Load Current (mA)
80
I
Fon
= 4 to 10 mA
60
40
20
0
-40
-20
0
20
40
60
80
Ambient Temperature (°C)
I
Fon
= 2 mA
I
Fon
= 1 mA
Absolute Maximum Ratings,
T
A
=25
°
C
Stresses in excess of the absolute Maximum Ratings can cause permanent
damage to the device. These are absolute stress ratings only. Functional oper-
ation 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.
Ambient Temperature Range ...........................................–40 to +85°C
Storage Temperature Range ..........................................–40 to +150°C
Soldering Temperature (t=10 s. Max.) ........................................ 260°C
Isolation Test Voltage (for 1.0 s.) ......................................... 3000 V
RMS
Isolation Resistance
V
IO
=500 V,
T
A
=25°C ..............................................................
≥
10
12
Ω
V
IO
=500 V,
T
A
=100°C ............................................................
≥
10
11
Ω
SSR Output Power Dissipation (continuous)............................550 mW
LED Continuous Forward Current ...............................................50 mA
LED Reverse Voltage (
I
R
≤
10
µ
A) ..................................................6.0 V
DC or Peak AC Load Voltage (
I
L
≤
50
µ
A) .....................................350 V
Continuous DC Load Current at 25°C
Bidirectional.............................................................................120 mA
Electrical Characteristics,
T
A
=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.
Parameter
Input
LED Forward Current, Switch Turn-on
LED Forward Current, Switch Turn-off
LED Forward Voltage
Current Limit
Output
ON-resistance, ac/dc: Pin 3 (±) to 4 (±)
OFF-resistance
Off-state Leakage Current
R
ON
R
OFF
I
O
—
0.5
—
—
Output Capacitance, Pin 3 to 4
C
O
—
—
Transfer
Input/Output Capacitance
Turn-on Time
Turn-off Time
C
ISO
t
on
t
off
—
—
—
0.6
2.0
0.08
—
3.0
3.0
pF
ms
ms
V
ISO
=1.0 V
I
F
=5.0 mA,
I
L
=50 mA
I
F
=5.0 mA,
I
L
=50 mA
20
5000
0.32
—
55
10
35
—
200
1.0
—
—
Ω
G
Ω
nA
µ
A
pF
pF
I
F
=5.0 mA,
I
L
=50 mA
I
F
=0 mA,
V
L
=±100 V
I
F
=0 mA,
V
L
=±100 V
I
F
=0 mA,
V
L
=±350 V
I
F
=0 mA,
V
L
=1.0 V
I
F
=0 mA,
V
L
=50 V
I
Fon
I
Foff
V
F
I
limit
—
0.2
1.0
230
1.1
0.6
1.18
260
2.0
—
1.45
370
mA
mA
V
mA
I
L
=100 mA, t=10 ms
V
L
±300 V
I
F
=10 mA
I
F
=5.0 mA, t=5.0 ms,
V
L
=±6.0 V
Sym.
Min.
Typ.
Max.
Units
Test Conditions
Document Number: 83837
Revision 06-March-02
www.vishay.com
3–174
Typical Performance Characteristics
Figure 1. LED Voltage vs. Temperature
1.6
1.5
LED Forward Voltage (V)
1.4
1.3
1.2
1.1
I
F
=1.0 mA
I
F
=2.0 mA
I
F
=5.0 mA
I
F
=10 mA
–20
0
20
40
60
Ambient Temperature (°C)
80
I
F
=20 mA
Change in Current Limit (%)
Normalized to 25°C
Figure 4. Current Limit vs. Temperature
40
30
20
10
0
–10
–20
–30
–40
–40
–20
0
20
40
60
80
I
F
= 5.0 mA
t = 5.0 ms
V
L
=
SEE ELEC. CHAR
.
I
F
=50 mA
1.0
–40
Ambient Temperature (°C)
Figure 2. LED Current for Switch Turn-on vs. Temperature
1100
LED Forward Current for Switch
Turn-on (%), Normalized to 25°C
900
700
I
L
= 100 mA
500
300
100
-100
-40
-20
0
20
40
60
80
Ambient Temperature (°C)
Figure 5. Switch Breakdown Voltage vs. Temperature
8
Change in Breakdown Voltage (%)
Normalized to 25°C
6
4
2
0
–2
–4
–6
–8
–40
–20
0
20
40
60
80
Ambient Temperature (°C)
Figure 3. ON-Resistance vs. Temperature
40
30
Change in R
ON
(%)
20
10
0
–10
–20
–30
–40
–40
–20
0
20
40
60
80
I
F
= 5.0 mA
I
L
= 50 mA
Figure 6. Switch Capacitance vs. Applied Voltage
80
70
60
Capacitance (pF)
50
40
30
20
10
0
0
20
40
60
80
100
Ambient Temperature (°C)
Document Number: 83837
Revision 06-March-02
Applied Voltage (V)
www.vishay.com
3–175
Figure 7. Leakage Current vs. Applied Voltage
100
T=85°C
Figure 9. Turn-off Time vs. Temperature
80
I
F
=10 mA
60
Change in Toff (%)
Normalized to 25°C
40
20
0
–20
–40
–60
I
F
=5.0 mA
I
F
=4.0 mA
I
F
=3.0 mA
I
F
=2.0 mA
–20
0
20
40
60
80
I
F
=8.0 mA
I
F
=6.0 mA
10
Leakage (pA)
T=50°C
T=70°C
1.0
T=25°C
0.1
0
50
100
150
200
250
300
350
400
–80
–40
Load Voltage (V)
Ambient Temperature (°C)
Figure 8. Leakage Current vs. Applied Voltage
10000
Figure 10. Turn-on Time vs. LED Current
7
6
1000
Leakage (pA)
Ton (ms)
5
4
3
2
1
100
10
T=85°C
T=25°C
T=–45°C
1
0
50
100
150
200
250
300
350
400
Load Voltage (V)
0
0
5
10
15
20
25
30
35
40
45
50
LED Forward Current (mA)
Document Number: 83837
Revision 06-March-02
www.vishay.com
3–176
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