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Bourns releases new Open LED Shunt Protector products
Bourns has announced the release of the LSP Series of LED Shunt Protector products for the LED lighting market. The protectors are electronic shunts that provide a current bypass when an LED element in a string fails open circuit.
In LED lighting applications, solid-state lighting luminaires are commonly configured with long strings of multiple series LEDs driven from a relatively high voltage compliance, constant current power supply. In that configuration an open LED will cause a complete LED string to go dark, rendering the application useless or markedly compromised. This can lead to warranty returns or maintenance calls.
While low power LED string designs may have used zener diodes in this configuration, high power LEDs would require very large and expensive zener diodes. Placing the Bourns LSP device across LEDs allows the remaining LEDs in a series string to continue to work when an LED fails open circuit.
There are many cases where high reliability of the LED lighting must be maintained, such as LCD backlighting, transport lighting, avionics, intrinsically safe and low maintenance lighting.
| Series | LSP0600 |
LSP0900 |
LSP1300 |
LSP1800 |
| Type | LED Shunt Protector |
|||
| Repetitive Peak Off-state Voltage Symbol: VDRM / Unit: V | 6.0 |
9.0 |
13.0 |
18.0 |
| Typical Number of LEDs Spanned | 1 |
2 |
3 |
4 |
The devices are provided in SMB surface mount packages and meet industry standard requirements such as RoHS and Pb Free solder reflow profiles.
For more information, or details on the full range of Bourns products available from Anglia, please email info@anglia.com
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This news article was originally published in April 2011.
