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What pitfalls are associated with LEDs connected in parallel?

April 26, 2017associated connected LEDs parallel pitfalls

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What pitfalls are associated with LEDs connected in parallel?

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10 Posted

If two or more LEDs with different electrical characteristics (Forward Voltage (Vf) Vs. Forward Current (If)) are connected in parallel, then the resulting voltage across the LEDs connected in parallel will tend to take on the Vf of the LED with the lowest Vf. This is called ” current-hogging” and can cause noticeable brightness differences between LEDs. This issue is detailed in Application Brief AB D 007.