LH1056
HIGH VOLTAGE, SOLID STATE RELAY
OPTOCOUPLER
FEATURES
鈥?Normally Open, Single Pole Single Throw
Operation
鈥?Control 350 VAC or DC Voltage
鈥?Switch 100 mA Loads
鈥?LED Control Current, 1.5 mA
鈥?Low ON-Resistance
鈥?dv/dt, >500 V/ms
鈥?Isolation Test Voltage, 3750 VAC
RMS
鈥?Current Limiting
鈥?Underwriters Lab File # E52744
APPLICATIONS
鈥?Telephone Switch Hook
鈥?High Voltage Test Equipment
鈥?TRIAC Driver
鈥?Motor Control
鈥?Industrial Control Systems
DESCRIPTION
The LH1056 is a single pole single throw (SPST), nor-
mally open (NO), solid state relay. The relay can control
AC or DC loads currents up to 100 mA, with a supply
voltage up to 350 V. The device is packaged in a six pin
0.3 inch dual-in line package. This package offers an
insulation dielectric withstand of 7500 VAC
PK
.
The coupler consists of a AlGaAs LED that is optically
coupled to a dielectrically isolated photodiode array
which drives two series connected high voltage MOS
transistors. The typical ON-Resistance is 30
鈩?/div>
at 25 mA
and is linear up to 50 mA. The incremental resistance
drops to less than 20
鈩?/div>
beyond 50 mA while reducing
internal power dissipation at high load currents. There is
built-in current limiting circuitry in the detector chip.
Package Dimensions in Inches (mm)
Pin One ID.
2
1
3
A
1
2
6
5
S
NC
.248 (6.30)
.256 (6.50)
4
5
6
K
3
4
.335 (8.50)
.343 (8.70)
.039
(1.00)
Min.
4擄
Typ.
.018 (0.45)
.022 (0.55)
NC
S'
.300 (7.62)
Typ.
.130 (3.30)
.150 (3.81)
18擄 Typ.
.020 (.051) Min.
.031 (0.80)
.035 (0.90)
.100 (2.54) Typ.
.010 (.25)
.014 (.35)
.300 (7.62)
.347 (8.82)
.110 (2.79)
.150 (3.81)
Absolute Maximum Ratings
(T
A
=25
擄
C)
Emitter
Reverse Voltage.............................................................................6.0 V
Continuous Forward Current....................................................... 60 mA
Peak Forward Current (1
碌
s)............................................................ 1 A
Power Dissipation .....................................................................100 mW
Derate Linearly from 25
擄
C ................................................... 1.3 mW/
擄
C
Detector
Output Breakdown Voltage........................................................
鹵
350 V
Continuous Load Current........................................................
鹵
100 mA
Total Power Dissipation.............................................................500 mW
Derate Linearly from 25
擄
C ................................................ See Figure 7
Package
Isolation Test Voltage ...................................................... 3750 VAC
RMS
Isolation Resistance
V
IO
=500 V, T
A
=25
擄
C ..............................................................
鈮?/div>
10
12
鈩?/div>
V
IO
=500 V, T
A
=100
擄
C .............................................................
鈮?/div>
10
11
鈩?/div>
Power Dissipation .....................................................................500 mW
Derate Linearly from 25
擄
C ................................................... 2.5 mW/
擄
C
Storage Temperature Range.......................................... 鈥?0 to +150
擄
C
Operating Temperature Range ........................................ 鈥?0 to +85
擄
C
Junction Temperature ..................................................................100
擄
C
Soldering Temperature, 2 mm from case, 10 sec........................260
擄
C
5鈥?98
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