LH1518AT/AAB/AABTR
1 Form A
Solid State Relay
FEATURES
•
•
•
•
•
•
•
•
•
5300 V
RMS
I/O Isolation
Current-limit Protection Built-in
Linear AC/DC Operation
High-reliability Monolithic Receptor
Low Power Consumption
Clean, Bounce-free Switching
High Surge Capability
Surface Mountable
Flammability; UL94,VØ
Package Dimensions in Inches (mm)
DIP
Pin One ID.
3
.256 (6.50)
.248 (6.30)
4
5
6
2
1
S
6
DC
5
S'
4
S
S'
1
2
3
.343 (8.70)
.335 (8.50)
.039
(1.00)
Min.
4° Typ.
.020 (.051) Min.
.022 (0.55)
.018 (0.45)
.035 (0.90)
.031 (0.80)
.100 (2.54) Typ.
.300 (7.62)
Typ.
.150 (3.81)
.130 (3.30)
18° Typ.
.014 (.35)
.010 (.25)
.347 (8.82)
.300 (7.62)
.150 (3.81)
.110 (2.79)
AGENCY APPROVALS
•
•
•
•
•
UL – File No. E52744
CSA – Certification 093751
BSI/BABT Cert. No. 7980
VDE 0884 Approval
FIMKO Approval
APPLICATIONS
• General Telecom Switching
• Instrumentation
• Industrial Controls
DESCRIPTION
Infineon Solid State Relays (SSRs) are miniature, opti-
cally-coupled relays with high-voltage MOSFET outputs.
The LH1518 relays are capable of switching AC or DC
loads from as little as nanovolts to hundreds of volts.
Likewise, the relays can switch currents in the range of
nanoamps to hundreds of milliamps. The MOSFET
switches are ideal for small signal switching and are pri-
marily suited for dc or audio frequency applications.
The LH1518 relays feature a monolithic output die that
minimizes wire bonds and permits easy integration of
high-performance circuits such as current limiting in nor-
mally-open switches. The output die integrates the pho-
todiode receptor array, turn-on and turn-off control
circuitry, and the MOSFET switches. The optically-cou-
pled input is controlled by a highly efficient GaAlAs infra-
SMD
.343 (8.71)
.335 (8.51)
Pin one I.D.
.256 (6.50)
.248 (6.30)
.050 (1.27) typ.
.052 (1.33)
.048 (1.22)
.150 (3.81)
.130 (3.30)
.0098 (.25)
.0040 (.10)
.040 (1.016)
.020 (0.508)
.395 (10.03)
.375 (9.63)
.300 (7.62)
typ.
.039
(0.99)
min.
3° to 7°
18°
.012 (0.31)
.008 (0.20)
4°
.100 (2.54)
.315 (8.00)
min.
red LED.
Part Identification
Part Number
LH1518AT
LH1518AAB
Description
6-pin DIP, Tubes
6-pin SMD, Gullwing, Tubes
2001 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA
www.infineon.com/opto • 1-888-Infineon (1-888-463-4636)
3–82
March 23, 2000-17
LH1518AABTR
6-pin SMD, Gullwing, Tape and Reel
Recommended Operating Conditions
130
120
Load Current (mA)
100
80
60
40
20
0
–40
I
Fon
=
5.0 to 20 mA
I
Fon
=2.0 mA
I
Fon
=3.0 mA
I
Fon
=4.0 mA
–20
0
20
40
60
Ambient Temperature (°C)
80
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 (
T
A
) ....................................–40 to +85
°
C
Storage Temperature Range (
T
stg
) .................................–40 to +150
°
C
Pin Soldering Temperature (t=10 s max) (
T
S
) ............................. 260
°
C
Input/Output Isolation Voltage (
V
ISO
) ..................................5300 V
RMS
LED Continuous Forward Current (
I
F
) .........................................50 mA
LED Reverse Voltage (
I
R
≤
10
µ
A) (
V
R
) ...........................................8.0 V
DC or Peak AC Load Voltage (
I
L
≤
50
µ
A) (
V
L
) ..............................250 V
Continuous DC Load Current (
I
L
)
Bidirectional Operation ............................................................155 mA
Unidirectional Operation..........................................................300 mA
Peak Load Current (t=100 ms) (single shot) (
I
P
).................................
†
Output Power Dissipation (
P
DISS
).............................................550 mW
† Refer to Current Limit Performance Application Note 58 for a discussion on relay operation during transient currents.
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
Output
ON-resistance
ac/dc: Pin 4 (±) to 6 (±)
dc: Pin 4, 6 (+) to 5 (±)
OFF-resistance
I
Fon
I
Foff
V
F
—
0.2
1.15
0.8
0.7
1.26
2.0
—
1.45
mA
mA
V
Ω
I
L
=100 mA, t=10 ms
V
L
±200 V
I
F
=10 mA
I
F
=5.0 mA,
I
L
=50 mA
I
F
=5.0 mA,
I
L
=100 mA
G
Ω
I
F
=0 mA,
V
L
=±100 V
Sym.
Min.
Typ.
Max.
Units
Test Conditions
R
ON
10
2.5
15
3.75
5000
20
5.0
—
R
OFF
0.5
2001 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA
www.infineon.com/opto • 1-888-Infineon (1-888-463-4636)
3–83
LH1518AT/AAB/AABTR
March 23, 2000-17
Current Limit
ac/dc: Pin 4 (±) to 6 (±)
dc: Pin 4, 6 (+) to 5 (±)
Off-state Leakage Current
I
LMT
170
Figure 3. Current Limit vs. Temperature
mA, t=5.0 ms
200
280
mA
I
F
=5.0
40
V
L
=±6.0 V
—
Change in Current Limit (%)
Normalized to 25°C
—
30
0.02
20
—
200
1.0
—
—
—
V
nA
µ
A
pF
F
I
F
=5.0 mA,
V
L
=4.0 mA
t = 5.0 ms
t=5.0 ms
ELEC. CHAR
.
V =
SEE
L
I = 5.0 mA
—
—
—
I
F
=0 mA,
V
L
=±100 V
I
F
=0 mA,
V
L
=±250 V
I
F
=0 mA,
V
L
=1.0 V
I
F
=0 mA,
V
L
=50 V
I
F
=5.0 mA
V
ISO
=1.0 V
I
F
=5.0 mA,
I
L
=50 mA
20
40
60
80
—
10
55
0
Output Capacitance
Pin 4 to 6
Switch Offset
Transfer
Input/Output Capacitance
Turn-on Time
Turn-off Time
—
—
—
10
–10
–20
—
—
0.15
C
ISO
t
on
t
off
—
—
—
0.8
–30
1.4
–40
0.7
–40
—
3.0
3.0
–20
pF
ms
ms
0
I
F
=5.0 mA,
I
L
=50 mA
Ambient Temperature (°C)
Typical Performance Characteristics
Figure 1. LED Current for Switch Turn-on vs. Temperature
100
LED Forward Current for Switch
Turn-on (%), Normalized to 25
°C
80
60
40
20
0
–20
–40
–60
–40
–20
0
20
40
60
80
I
L
= 100 mA
Figure 4. 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)
Ambient Temperature (°C)
Figure 2. ON-Resistance vs. Temperature
50
Change in ON-Resistance (%)
Normalized to 25°C
40
30
20
10
0
–10
–20
–30
–40
–40
–20
0
20
40
60
80
Switch Offset Voltage (µV)
I
L
= 50 mA
Figure 5. Switch Capacitance vs. Applied Voltage
3.5
I
F
= 5.0 mA
3.0
2.5
2.0
1.5
1.0
0.5
0
Ambient Temperature ( C)
20
30
40
50
60
70
80
90
Ambient Temperature (°C)
2001 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA
www.infineon.com/opto • 1-888-Infineon (1-888-463-4636)
3–84
LH1518AT/AAB/AABTR
March 23, 2000-17
Figure 6. Switch Offset Voltage vs. Temperature
0.6
0.5
0.4
0.3
0.2
0.1
0
0
5
10
15
20
25
LED Forward Current (mA)
Figure 9. Turn-on Time vs. Temperature
60
50
Change in Turn-on Time (%)
Normalized to 25°C
I
F
=5.0 mA
I
L
=50 mA
Switch Offset Voltage (µV)
40
30
20
10
0
–10
–20
–30
–40
–40
–20
0
20
40
60
80
Ambient Temperature (°C)
Figure 7. Leakage Current vs. Applied Voltage
100
Off-state Leakage Current (pA)
90
80
70
I
F
= 0 mA
T
A
= 25
°C
Figure 10. Turn-on Time vs. LED Current
10
I
L
=50 mA
–40°C
6
25°C
85°C
8
Turn-on Time (ms)
60
50
40
30
20
10
0
4
2
0
0
50
100
150
200
250
300
350 400
0
10
20
30
40
50
Load Voltage (V)
LED Forward Current (mA)
Figure 8. Leakage Current vs. Applied Voltage at Elevated
Temperatures
3.0
Off-state Leakage Current (nA)
2.5
85°C
Figure 11. Turn-Off Time vs. LED Current
1.4
I
L
=50 mA
1.2
Turn-off Time (ms)
1.0
0.8
0.6
85°C
0.4
0.2
0
10
20
30
40
50
–40°C
2.0
1.5
1.0
0.5
0
0
50
100
150
200
250
300
350
400
70°C
25°C
50°C
Load Voltage (V)
LED Forward Current (mA)
2001 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA
www.infineon.com/opto • 1-888-Infineon (1-888-463-4636)
3–85
LH1518AT/AAB/AABTR
March 23, 2000-17
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