8 HBLED driven by 7.4Vcc Li-ion battery

Ubiratan

Other Parts Discussed in Thread: TPS92390

Hi, I need to drive 8 HBLED in series with a series voltage of 28Vcc at 700mA current.

Does TI have any driver that can boost 7.4Vcc to 28V to drive these LED at the specified current ?

Thanks.

0 Patrick Yao over 2 years ago

Hi Ubiratan,

I recommend you to use TPS92390 as your LED driver.

This device has 4 channels and output current is up to 200mA per channel.

You can tight the 4 channels together and set the output current to 175mA per channel to get the total current as 700mA.

More details in TPS92390 datasheet

Best Regards,

Patrick Yao

0 Patrick Yao over 2 years ago

Hi Ubiratan,

Do you have more questions about TPS92390?

If not, I'll close this case later.

Patrick Yao

Power management forum