PCA9955B: Is it possible to connect multiple channels to operate multiple LEDs in parallel?

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PCA9955B: Is it possible to connect multiple channels to operate multiple LEDs in parallel?

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yannick_aeby
Contributor I

We would provide all LEDs with a series resistor. The channels would be interconnected directly at the IC. If we would connect two channels together, we could sink the double amount of current through one track. Is this possible with this IC?

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TomasVaverka
NXP TechSupport
NXP TechSupport

Hi Yannick,

Yes, it is OK to connect two LED channels together to double LED current in application.

We have had a few customers using such connection in their applications without problems.

Best regards,

Tomas

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145 Views
TomasVaverka
NXP TechSupport
NXP TechSupport

Hi Yannick,

Yes, it is OK to connect two LED channels together to double LED current in application.

We have had a few customers using such connection in their applications without problems.

Best regards,

Tomas

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