LAA125L
350V, 150mA Dual Single-Pole
Current Limiting, Normally Open Relays
INTEGRATED
CIRCUITS
DIVISION
Description
Parameter
Load Voltage, AC/DC
Ratings
350
Units
VP
mArms / mADC
LAA125L is a dual normally open (1-Form-A) Solid
State Relay that has two independently controlled,
optically coupled MOSFET switches with an
Load Current
150
On-Resistance (max)
18
additional current limiting circuit. The optically coupled
combination of MOSFET switches and photovoltaic die
provide 3750Vrms of input/output isolation.
Features
• Current Limiting
• 3750Vrms Input/Output Isolation
• Low Drive Power Requirements
• Higher Reliability than Electromechanical Relays
• No EMI/RFI Generation
The optically coupled outputs, which use patented
OptoMOS architecture, are controlled by a highly
efficient infrared LED.
This dual switch OptoMOS relay provides a more
compact design solution than discrete single-pole
relays in a variety of applications, and saves board
space by incorporating both switches in a single 8-Pin
package.
• Small 8 Pin Packages
• Surface Mount and Tape & Reel Versions Available
• Flammability Rating UL 94 V-0
Applications
• Telecommunications
• Instrumentation
• Multiplexers
• Data Acquisition
• Electronic Switching
• I/O Subsystems
• Medical Equipment-Patient/Equipment Isolation
• Meters (Watt-Hour, Water, Gas)
• Security
Approvals
• UL Recognized Component: File # E76270
• CSA Certified Component: Certificate # 1175739
• TUV EN 62368-1: Certificate # B 082667 0008
Ordering Information
Part #
LAA125L
Description
8 Pin DIP (50/Tube)
• Industrial Controls
LAA125LS
LAA125LSTR
LAA125PL
LAA125PLTR
8 Pin Surface Mount (50/Tube)
8 Pin Surface Mount (1,000/Reel)
8 Pin SOIC (Flatpack) (50/Tube)
8 Pin SOIC (Flatpack) (1,000/Reel)
Pin Configuration
1
8
+ Control - Switch #1
Load - Switch #1
2
3
7
6
– Control - Switch #1
+ Control - Switch #2
Load - Switch #1
Load - Switch #2
4
5
– Control - Switch #2
Load - Switch #2
Switching Characteristics of
Normally Open (Form A) Devices
Form-A
IF
90%
10%
ILOAD
t
t
off
on
1
DS-LAA125L-R14
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