LP8864S-Q1: spec and circuit for LP8864S-Q1 and LP8864-Q1

Yuta Nishie

Part Number: LP8864S-Q1
Other Parts Discussed in Thread: LP8864-Q1

Hi,

I have a questions.

1. The current values of LP8864S-Q1 and LP8864-Q1 are different. Can the peripheral circuits and software be used in the same way?

2.Can LP8864S-Q1 flow 200mA (ILED) to each channel? P21 of the data sheet says "For high accuracy of LED current, the ILED current is recommended to set in range from 30 mA to 200 mA."

Is the recognition that ILED = 150mA wrong?

Best Regards,

Nishie

over 4 years ago

0 Frank Qiu over 4 years ago

TI__Genius 15776 points

Hi Charles could you help in this case.

0 Yuta Nishie over 4 years ago in reply to Frank Qiu

Genius 5005 points

HI Charles,

I would appreciate it if you would update me on this matter.

Best Regards,

Nishie

+1 Charles-Chen over 4 years ago in reply to Yuta Nishie

TI__Genius 11836 points

Hi Yuta-san,

LP8864S could only support 150mA per channel. The current of hardware components will be a slightly different when you consider the bigger channel current in your application. For the register of two device, the software could write and read the value in the same way.

0 Yuta Nishie over 4 years ago in reply to Charles-Chen

Genius 5005 points

Hi Charles-san,

Thank you for your reply.

I understood that the register Read and Write methods are the same.

Is it okay to recognize that if the currents of the hardware components are different, the peripheral circuits are also different?

Best Regards,

Nishie

0 Charles-Chen over 4 years ago in reply to Yuta Nishie

TI__Genius 11836 points

Hi Yuta-san,

It's hard to say and I suggest to check by the specific application.

Power management

Power management forum

LP8864S-Q1: spec and circuit for LP8864S-Q1 and LP8864-Q1