RyreInc
Electrical
- Apr 7, 2011
- 205
Hello, probably some easy questions but ones I'd like to have clarified nonetheless.
We plan on using the LED linked below for an application. The chip is comprised of three individual diodes. Simple on/off control of the entire chip, no pulsing. Sometimes the LEDs can remain on for long periods of time.
[URL unfurl="true"]https://www.bivar.com/portals/0/products/SMTL6-RC.pdf[/url]
I assume the absolute maximum ratings are for the chip as a whole - is that correct? Is the maximum continuous forward current of 30mA for the whole chip as well then? If I wire the diodes in series, 30mA results in a power dissipation well above the 100mW stated limit. The recommended forward current is 60mA - this must be for pulsing applications?
For reasons I won't get into, the chip must be powered through a single resistor (rather than one per diode). The source voltage is 24VDC. Considering that, I conclude we should wire these in series. In that case a forward current of about 15mA results in a total power dissipation of 100mW. Is that a reasonable conclusion?
Thanks!
We plan on using the LED linked below for an application. The chip is comprised of three individual diodes. Simple on/off control of the entire chip, no pulsing. Sometimes the LEDs can remain on for long periods of time.
[URL unfurl="true"]https://www.bivar.com/portals/0/products/SMTL6-RC.pdf[/url]
I assume the absolute maximum ratings are for the chip as a whole - is that correct? Is the maximum continuous forward current of 30mA for the whole chip as well then? If I wire the diodes in series, 30mA results in a power dissipation well above the 100mW stated limit. The recommended forward current is 60mA - this must be for pulsing applications?
For reasons I won't get into, the chip must be powered through a single resistor (rather than one per diode). The source voltage is 24VDC. Considering that, I conclude we should wire these in series. In that case a forward current of about 15mA results in a total power dissipation of 100mW. Is that a reasonable conclusion?
Thanks!