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Part Number: LH1540AAB
Description: The LH1540 is robust, ideal for telecom and ground fault applications. It is a SPST normally open swit...
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LH1540AAB
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DataSheet
General Description
LH1540AAB General Description
The LH1540 is robust, ideal for telecom and ground fault applications. It is a SPST normally open switch (Form A) that replaces electromechanical relays in many applications. It is 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 com- prised of a photodiode array, switch control circuitry and MOSFET switches. In addition, it employs cur- rent-limiting circuitry which meets FCC 68.302 and other regulatory voltage surge requirements when overvoltage protection is provided.
LH1540AAB Maximum Ratings
Absolute Maximum Ratings, Tamb = 25 °C
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.
1) Refer to Current Limit Performance Application Note for a discussion on relay operation during transient currents.
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.
| Parameter | Test condition | Symbol | Value | Unit |
| LED continuous forward current | IF | 50 | mA | |
| LED reverse voltage | IR 10 A | VR | 8.0 | V |
| DC or peak AC load voltage | IL 50 A | VL | 350 | V |
| Continuous DC load current - unidirectional operation |
IL | 120 | mA | |
| Continuous DC load current - unidirectional operation |
IL | 250 | mA | |
| Peak load current (single shot) | t = 100 ms | IP | 1) | mA |
| Ambient temperature range | Tamb | - 40 to + 85 | ||
| Storage temperature range | Tstg | - 40 to + 150 | ||
| Pin soldering temperature | t = 10 s max | Vsld |
260 | |
| Input/output isolation voltage | VISO |
5300 | VRMS | |
| Output power dissipation (continuous) | Pdiss | 550 |
mW |
1) Refer to Current Limit Performance Application Note for a discussion on relay operation during transient currents.
LH1540AAB Features
• Current Limit Protection
• Isolation Test Voltage 5300 VRMS
• Typical RON 20 Ω, max 25 Ω
• Load Voltage 350 V
• Load Current 120 mA
• High Surge Capability
• Clean Bounce Free Switching
• Low Power Consumption
• High Reliability Monolithic Detector
• SMD lead available on tape and reel
• Lead-free component
• Component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC
• Isolation Test Voltage 5300 VRMS
• Typical RON 20 Ω, max 25 Ω
• Load Voltage 350 V
• Load Current 120 mA
• High Surge Capability
• Clean Bounce Free Switching
• Low Power Consumption
• High Reliability Monolithic Detector
• SMD lead available on tape and reel
• Lead-free component
• Component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC
LH1540AAB Typical Application
·General Telecom Switching
- On/off Hook Control
- Ring Delay
- Dial Pulse
- Ground Start
- Ground Fault Protection
·Instrumentation
·Industrial Controls
·See "Solid State Relays" (Application Note 56)
- On/off Hook Control
- Ring Delay
- Dial Pulse
- Ground Start
- Ground Fault Protection
·Instrumentation
·Industrial Controls
·See "Solid State Relays" (Application Note 56)
LH1540AAB
PDF/DataSheet Download
- Datasheet: LH1540AAB
- File Size: 187399 KB
- Manufacturer: VISAY [Vishay Siliconix]
- Click here to Download
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LH1540AAB Relative Products
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