LH1531, LH1532, LH1544
Dual 1 Form A
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 operation of the
Parameter
Ambient Operating Temperature Range
Storage Temperature Range
Pin Soldering Temperature
Input/Output Isolation Test Voltage
Pole-to-Pole Isolation Voltage (S1 to S2)†
LED Continuous Forward Current
LED Reverse Voltage
dc or Peak ac Load Voltage
Continuous dc Load Current
One Pole Operating
Two Poles Operating
Peak Load Current
Output Power Dissipation (continuous)
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.
LH1531
–40 to +85
–40 to +150
260
5300
1600
50
8
350
150
110
LH1532
–40 to +85
–40 to +150
260
5300
1600
50
8
350
120
110
*
600
LH1544
–40 to + 85
–40 to +150
260
5300
1600
50
8
200
55
40
100
600
Units
°
C
°
C
°
C
Vrms
V
mA
V
V
mA
mA
mA
mW
Symbol Test Conditions
T
A
T
stg
T
S
V
ISO
—
I
F
V
R
V
L
I
L
t=1 Sec
Dry air, dust free, at
sea level
—
I
R
≤
10
µ
A
I
L
≤
50
µ
A
—
—
—
t=10 s max
I
P
P
DISS
t=100 ms
(single shot)
—
400
600
* Refer to Current-Limit Performance Application Note for a discussion on relay operation during transient currents.
† Breakdown occurs between the output pins external to the package.
SSR Recommended Operating Conditions
150
I
FON
=
5 mA to 20 mA
120
LOAD CURRENT (mA)
120
LOAD CURRENT (mA)
I
FON
=
5 mA to 20 mA
100
80
60
40
20
I
FON
= 2 mA
I
FON
= 3 mA
I
FON
= 4 mA
90
60
30
LH1531
1
I
FON
= 2 mA
I
FON
= 3 mA
I
FON
= 4 mA
0
–40
LH1532
LH1532
2
–20
0
20
40
60
80
0
–40
–20
0
20
40
60
80
AMBIENT TEMPERATURE (°C)
50
AMBIENT TEMPERATURE (
°
C)
LOAD CURRENT (mA)
40
30
20
10
0
I
FON
= 2 mA
I
FON
= 3 mA
I
FON
= 4 mA
I
FON
= 5 mA
to 20 mA
LH1544
3
–40
–20
0
20
40
60
80
AMBIENT TEMPERATURE (°C)
1
Electrical Characteristics
T
A
=25
°
C
Minimum and maximum values are testing require-
ments. Typical values are characteristics of the device
Parameter
LED Forward Current
for Switch Turn-on
LED Forward Current
for Switch Turn-off
INPUT
V
L
I
F
=10 mA
Symbol
I
Fon
Test Conditions
I
L
=100 mA
t=10 ms
—
and are the result of engineering evaluations. Typical
values are for information purposes only and are not
part of the testing requirements.
Values
Min
Typ
Max
Min
Typ
Max
±
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
±
Min
Typ
Max
Min
Typ
Max
±
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
LH1531
—
1.0
2.0
0.2
0.9
—
300
1.15
1.26
1.45
12
18
25
0.5
5000
—
—
—
—
—
—
—
—
—
—
—
—
0.02
200
—
—
1.0
350
—
55
—
—
10
—
—
0.5
—
—
0.15
—
—
1.1
—
—
0.5†
1.0†
—
0.5†
1.0†
LH1532
—
1.0
2.0
0.2
0.9
—
300
1.15
1.26
1.45
12
20
25
0.5
5000
—
—
—
—
—
—
—
170
210
250
6
—
0.02
200
—
—
1.0
350
—
55
—
—
10
—
—
0.5
—
—
0.15
—
—
1.1
—
—
1.4
2.5
—
0.7
2.5
LH1544
—
0.9
2.0
0.2
0.8
—
150
1.10*
1.19*
1.45*
70
110
160
0.5
10000
—
—
—
—
—
—
—
—
—
—
—
—
0.01
200
—
—
1.0
200
—
0
—
—
0.5
—
—
0.5
—
—
0.1
—
—
1.1
—
—
0.13‡
0.25‡
—
0.06‡
0.25‡
Units
mA
mA
mA
mA
mA
mA
V
V
V
V
Ω
Ω
Ω
G
Ω
G
Ω
G
Ω
V
V
V
V
V
V
mA
mA
mA
V
nA
nA
nA
µ
A
µ
A
µ
A
V
pF
pF
pF
pF
pF
pF
pF
pF
pF
µ
V
µ
V
µ
V
pF
pF
pF
ms
ms
ms
ms
ms
ms
I
Foff
LED Forward Voltage
V
F
ON-resistance
R
ON
I
F
=5 mA
I
L
=50 mA
I
F
=0 mA
V
L
=
±
100 V
I
L
=1 mA
OFF-resistance
R
OFF
ON-state Voltage
—
I
L
=90 mA
t=10 ms
Current Limit
I
LMT
I
F
=5 mA
t=5 ms
V
L
I
F
=0 mA
V
L
=
±
100 V
I
F
=0 mA
OUTPUT
Off-state
Leakage Current
—
Output Capacitance
—
V
L
I
F
=0 mA
V
L
=1 V
I
F
=0 mA
V
L
=50 V
Pole-to-pole
Capacitance
(S1 to S2)
Switch Offset
—
I
F
=5 mA
—
I
F
=5 mA
Input/Output Capacitance
C
ISO
V
ISO
=1 V
Turn-on Time
TRANSFER
Turn-off Time
t
on
I
F
=5 mA
I
L
=50 mA
I
F
=5 mA
I
L
=50 mA
t
off
* I
F
=5 mA, † I
F
=10 mA, ‡ I
L
=12.5 mA
The following information refers to the SSR Recommended Operation Conditions on the previous page.
1) Both relays on with equal load currents. For single relay operation, refer to the LH1530 Recommended Operating Conditions graph.
2) Both relays on with equal load currents. For single relay operation, refer to the LH1540 Recommended Operating Conditions graph.
3) Single relay operation.
LH1531, LH1532, LH1544
2
A. LED Voltage vs. Temperature
1.6
B. LED Dropout Voltage vs. Temperature
1.20
I
L
= 100 mA
LED FORWARD VOLTAGE (V)
LED FORWARD VOLTAGE (V)
1.5
I
F
= 50 mA
1.4
1.3
1.2
I
F
= 1 mA
1.1
1.0
–40
–20
0
I
F
= 2 mA
I
F
= 5 mA
I
F
= 10 mA
20
40
60
80
I
F
= 20 mA
1.15
TYP.
1.10
MIN.
1.05
1.00
0.95
–40
–20
0
20
40
60
80
AMBIENT TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
C. LED Current for Switch Turn-On vs. Temperature
LED FORWARD CURRENT FOR SWITCH
TURN-ON (%) NORMALIZED TO 25
°C
D. LED Current for Switch Turn-On vs. Temperature
(LH1544)
LED FORWARD CURRENT FOR SWITCH
TURN-ON (%) NORMALIZED TO 25
°C
160
I
L
= 50 mA
150
120
90
60
30
0
–30
–60
–40
–20
0
20
40
60
80
100
I
L
= 100 mA
80
60
40
20
0
–20
–40
–60
–40
–20
0
20
40
60
80
LH1505, LH1520, LH1522,
LH1505, LH1520, LH1522,
LH1524, LH1531, LH1532
LH1524, LH1531, LH1532
AMBIENT TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
E. Current Limit vs. Temperature
F. ON-Resistance vs. Temperature
40
CHANGE IN CURRENT LIMIT (%)
NORMALIZED TO 25
°C
30
20
10
0
–10
–20
–30
–40
–40
–20
0
20
LH1505, LH1520,
LH1505, LH1520,
LH1522, LH1524,
LH1522, LH1524,
LH1532
LH1532
CHANGE IN ON-RESISTANCE (%)
NORMALIZED TO 25°C
I
F
= 5 mA
t = 5 ms
V
L
= SEE ELEC. CHAR.
50
40
A–LH1505, LH1524
A – LH1505,LH1524
LH1532
B
A
30
B–LH1520, LH1531, LH1532
B – LH1520, LH1531,
C –LH1522
C – LH1522
20
D – LH1544
D –LH1544
10
C, D
0
–10
C
B, D
–20
I
L
= 50 mA
–30
A
40
60
80
AMBIENT TEMPERATURE (°C)
–40
–40
–20
0
20
40
60
80
AMBIENT TEMPERATURE (°C)
LH1531, LH1532, LH1544
3
A. Variation in ON-Resistance vs. LED Current
a
c/dc ON-RESISTANCE VARIATION (%) NORMALIZED TO
B. Switch Capacitance vs. Applied Voltage
80
I
F
= 0 mA
T
A
= 25
°C
f = 1 MHz
1.5
DATA SHEET R
ON
SPECIFICATION @ I
F
= 5 mA
A, C, D
I
L
= 50 mA
70
CAPACITANCE (pF)
1.0
B
A – LH1520,
LH1531,
LH1532
A – LH1520, LH1531,
LH1532
B –
LH1524
LH1524
B–
C
–LH1522
C
– LH1522
D – LH1505
A
60
50
40
30
20
10
B
A
A –LH1522
A – LH1522
B – LH1505, LH1520,
B –LH1505, LH1520, LH1531, LH1532
LH1531, LH1532
0.5
B, C
0
D
–0.5
0
4
8
12
16
20
LED FORWARD CURRENT (mA)
0
0
20
40
60
80
100
APPLIED VOLTAGE (V)
C. Switch Capacitance vs. Applied Voltage (LH1544)
6.0
5.0
I
F
= 0 mA
T
A
= 25
°C
f = 1 MHz
D. Insertion Loss vs. Frequency
0.30
0.25
R
L
= 600
Ω
B
A
INSERTION LOSS (dB)
CAPACITANCE (pF)
4.0
3.0
2.0
1.0
0.0
0
10
20
30
40
50
60
70
80
90 100
APPLIED VOLTAGE (V)
0.20
0.15
0.10
C
A LH1520, LH1531, LH1532
A
–
–LH1520, LH1531, LH1532
B – LH1505
C LH1522
B
–
–LH1505
0.05
C –LH1522
0
10
2
10
3
10
4
10
5
FREQUENCY (Hz)
E. Insertion Loss vs. Frequency (LH1544)
2.00
1.75
INSERTION LOSS (dB)
F. Output Isolation
100
V
P
= 10 V
R
L
= 50
Ω
80
ISOLATION (dB)
R
L
= 600
Ω
1.50
1.25
1.00
0.75
0.50
60
A –
LH1524, LH1544
A –
LH1524, LH1544
B – LH1505, LH1520,
B –
LH1522, LH1531,
LH1505, LH1520,
LH1532
LH1522, LH1531,
40
LH1532
A
B
20
0.25
0
10
2
0
10
2
10
3
10
4
10
5
10
6
10
7
10
3
10
4
10
5
FREQUENCY (Hz)
FREQUENCY (Hz)
LH1531, LH1532, LH1544
4
A. Leakage Current vs. Applied Voltage
100
B. Leakage Current vs. Applied Voltage at Elevated
Temperatures
3.0
OFF-STATE LEAKAGE CURRENT (pA)
OFF-STATE LEAKAGE CURRENT (nA)
90
80
70
60
50
40
30
20
10
0
0
I
F
= 0 mA
T
A
= 25
°C
LH1505, LH1520, LH1522,
LH1505, LH1520, LH1522,
LH1524, LH1531, LH1532
LH1524, LH1531, LH1532
85
°C
2.5
2.0
1.5
70
°C
1.0
0.5
0
0
50
100
150
200
250
300
350
400
50
°C
ALL OTHER
FORM A SSRs
LH1544
50
100
150
200
250
300
350 400
LOAD VOLTAGE (V)
LOAD VOLTAGE (V)
C. Leakage Current vs. Applied Voltage at Elevated
Temperatures (LH1544)
270
D. Switch Breakdown Voltage vs. Temperature
CHANGE IN BREAKDOWN VOLTAGE (%)
NORMALIZED TO 25
°C
8
6
4
2
0
–2
–4
–6
–8
–40
–20
0
20
40
60
OFF-STATE LEAKAGE CURRENT (pA)
240
210
180
150
120
90
60
30
0
0
20
40
60
85
°C
LH1505,
LH1520, LH1522,
LH1505,
LH1520, LH1522,
LH1524,
LH1531, LH1532
LH1524,
LH1531, LH1532
70
°C
50
°C
80 100 120 140 160 180 200
80
LOAD VOLTAGE (V)
AMBIENT TEMPERATURE (°C)
E. Switch Breakdown Voltage vs. Temperature (LH1544)
CHANGE IN BREAKDOWN VOLTAGE (%)
NORMALIZED TO 25
°C
8
6
4
2
0
–2
–4
–6
–8
–10
–40
–20
0
20
40
60
80
F. Switch Offset Voltage vs. Temperature
3.5
SWITCH OFFSET VOLTAGE (µV)
3.0
2.5
2.0
1.5
1.0
0.5
0
20
LH1505, LH1520,
LH1522,
LH1505, LH1520,
LH1522,
LH1531, LH1532,
LH1544
LH1531, LH1532,
LH1544
30
40
50
60
70
80
90
AMBIENT TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
LH1531, LH1532, LH1544
5
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