VISHAY LH1520AB, LH1520 AAC, LH1520AACTR Technical data

i179034

8765

123 4

S2'S2S1 S1'

S2'

S2

S1 S1'

DIP SMD

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VISHAY

Dual 1 Form A Solid State Relay

Features

• Dual Channel (LH1500)

• Current Limit Protection

• Isolation Test Voltage 5300 V

•Typical RON 20 Ω

• Load Voltage 350 V

• Load Current 150 mA

• High Surge Capability

• Linear, AC/DC Operation

• Clean Bounce Free Switching

• Low Power Consumption

Agency Approvals

• UL - File No. E52744 System Code H or J

• CSA - Certification 093751

• BSI/BABT Cert. No. 7980

• DIN EN 60747-5-5 (VDE 0884):2003-01 Available
with Option 1

• FIMKO Approval

Applications

General Telecom Switching

- On/off Hook Control

- Ring Delay

- Dial Pulse

- Ground Start

- Ground Fault Protection

Instrumentation
Industrial Controls

RMS

LH1520AB/ AAC/ AACTR

Vishay Semiconductors

Description

The LH1520 dual 1 Form A relays are SPST normally
open switches that can replace electromechanical
relays in many applications. They are constructed
using a GaAIAs LED for actuation control and an inte­grated monolithic die for the switch output. The die,
fabricated in a high-voltage dielectrically isolated
technology is comprised of a photodiode array, switch
control circuitry, and MOSFET switches. In addition,
the LH1520 SSRs employ current-limiting circuitry,
enabling them to pass FCC 68.302 and other regula­tory surge requirements when overvoltage protection
is provided.

Order Information

Part Remarks

LH1520AAC SMD-8, Tubes

LH1520AACTR SMD-8, Tape and Reel

LH1520AB DIP-8, Tubes

Document Number 83818

Rev. 1.2, 05-Nov-03

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1

LH1520AB/ AAC/ AACTR

Vishay Semiconductors

VISHAY

Absolute Maximum Ratings, T

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.

amb

= 25 °C

SSR

Parameter Test condition Symbol Val ue Unit

LED continuous forward current I

LED reverse voltage IR ≤ 10 µA V

DC or peak AC load voltage IL ≤ 50 µA V

Continuous DC load current ,
one pole operating

Continuous DC load current ,
two poles operating

Peak load current (single shot),
Form B

Ambient temperature range T

Storage temperature range T

Pin soldering temperature t = 10 s max T

Input/output isolation test
voltage

Pole-to-pole isolation voltage

(S1 to S2)
at sea level)

Output power dissipation
(continuous)

1)

Breakdown occurs between the output pins external to the package.

2)

Refer to Current Limit Performance Application Note for a discussion on

relay operation during transient currents.

1)

, (dry air, dust free,

t = 100 ms I

t = 1.0 s, I

= 10 µA max V

ISO

P

F

I

L

I

L

P

amb

stg

sld

ISO

diss

R

L

50 mA

8.0 V

350 V

150 mA

110 mA

2)

- 40 to + 85 °C

- 40 to + 150 °C

260 °C

5300 V

1600 V

600 mW

RMS

Electrical Characteristics, T

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.

amb

= 25 °C

Input

Parameter Test condition Symbol Min Ty p. Max Unit

LED forward current,
switch turn-on

LED forward current,
switch turn-off

LED forward voltage IF = 10 mA V

IL = 100 mA, t = 10 ms I

VL = ± 300 V I

Fon

Foff

1.0 2.0 mA

0.2 1.1 mA

F

1.15 1.26 1.45 V

Output

Parameter Test condition Symbol Min Ty p. Max Unit

ON-resistance IF = 5.0 mA, IL = 50 mA R

OFF-resistance IF = 0 mA, VL = ± 100 V R

Current limit IF = 5.0 mA, t = 5.0 ms,

V

= ± 6.0 V

L

Off-state leakage current IF = 0 mA, VL = ± 100 V 0.02 200 nA

IF = 0 mA, VL = ± 350 V 1.0 µA

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2

I

LMT

ON

OFF

12 20 25 Ω

0.5 5000 GΩ

230 270 370 mA

Document Number 83818

Rev. 1.2, 05-Nov-03

VISHAY

ilh1520ab_02

0

20

40

60

80

100

120

LED Forward Current (mA)

0 0.5 1 1.5 2

LED Forward Voltage (V)

T=85°C
T=25°C
T=-40°C

ilh1520ab_03

0

2

4

6

8

10

0 8 16 24 32 40 48

LED Reverse Current (µA)

LED Reverse Voltage (V)

T=-40°C
T=25°C
T=85°C

LH1520AB/ AAC/ AACTR

Vishay Semiconductors

Parameter Test condition Symbol Min Ty p. Max Unit

Output capacitance IF = 0 mA, VL = 1.0 V 55 pF

IF = 0 mA, VL = 50 V 10 pF

Pole-to-pole capacitance

IF = 5.0 mA 0.5 pF

(S1 to S2)

Switch offset IF = 5.0 mA 0.15 V

Transfer

Parameter Test condition Symbol Min Ty p. Max Unit

Input/output capacitance V

Turn-on time IF = 5.0 mA, IL = 50 mA t

Turn-off time IF = 5.0 mA, IL = 50 mA t

= 1.0 V C

ISO

ISO

on

off

1.1 pF

1.4 2.0 ms

0.7 2.0 ms

Typical Characteristics (T

110

100

80

60

I

= 5.0 to 20 mA

Fon

40

I

=2.0mA

Load Current (mA)

ilh1520ab_00

Fon

I

=3.0mA

Fon

20

I

=4.0mA

Fon

0

-40-20020406080
Ambient Temperature (°C)

= 25 °C unless otherwise specified)

amb

Figure 1. Recommended Operating Conditions

1.6

1.5

1.4

IF=20mA

IF=50mA

Figure 3. LED Forward Current vs. LED Forward Voltage

1.3

1.2
IF= 1.0 mA
IF= 2.0 mA

LED Forward Voltage (V)

1.1

1.0

-40 -20 0 20 40 60 80

ilh1520ab_01

Figure 2. LED Voltage vs. Temperature

Document Number 83818

Rev. 1.2, 05-Nov-03

IF= 5.0 mA
IF=10mA

Ambient Temperature (°C)

Figure 4. LED Reverse Current vs. LED Reverse Voltage

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