TPS62866: How to design a constant current power solution.

Hale Tan

Part Number: TPS62866

Tool/software:

Hi team,

The customers want to design a constant current output. the input is 3.3V, output is 750mA*8. so I think whether we can use TPS62866 to design a constant current power supply. Any suggestion or reference?

over 1 year ago

0 Werner Lummer over 1 year ago

TI__Expert 4438 points

Hi Hale,

This device does not support an application as constant current source.

You may take a look at our LED driver devices to find something for your application: https://www.ti.com/power-management/led-drivers/automotive-led-drivers/products.html#1129=Current%20Source&

Regards, Werner

0 Hale Tan over 1 year ago in reply to Werner Lummer

TI__Expert 3770 points

Hi Werner,

I think that we can use some system solution to solve this issue. Do you know any reference design？

0 Werner Lummer over 1 year ago in reply to Hale Tan

TI__Expert 4438 points

Hi Hale,

Can you share more details about the application? What are the 8x750mA used for?

Regards, Werner

0 Werner Lummer over 1 year ago in reply to Werner Lummer

TI__Expert 4438 points

This topic has moved to an email discussion to include application specific details.

For anyone else reading, this application note is a good start: https://www.ti.com/lit/an/slva419d/slva419d.pdf

Regards, Werner

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TPS62866: How to design a constant current power solution.