LM3914: 10 step Divider accuracy

Kai Hsiao

Guru 12675 points

Part Number: LM3914

Hi Sir

If I connect Rhi=10V / Rlo=6V

what's the accuracy voltage for each step ?

For example

10V-6V =4V

4V / 10step = 0.4

if the accuracy is 5% = 0.38V~0.4V for each step

over 6 years ago

0 Aaron Goodson over 6 years ago

TI__Expert 6330 points

Hi,

I have notified our expert regarding this topic. Please expect a response by 8/2/19.

Thanks,

Aaron

0 Liaqat Khan over 6 years ago

TI__Mastermind 18550 points

Hello Kai,

Your description above is correct.

Please note that accuracy is specified in the datasheet at 2% but under the conditions of Rhi=10V and Rlo=0V. With the conditions, you provided (Rhi=10V and Rlo=6V), I believe assumption of 5% accuracy should be ok but please do note that accuracy is only tested at the conditions provided in the datasheet.

Kind Regards,

Liaqat

Power management

Power management forum

LM3914: 10 step Divider accuracy