BQ34110: Need the temperature coefficient calculator for BQ34110

Sahaj Saxena

Part Number: BQ34110

Hello,

Can you provide the Ext temp coefficient calculator's spreadsheet for BQ34110 IC to update under Temp Model in the data flash , as the one we have "sula398" doesn't seem to work with the mentioned IC.

Thank You

over 1 year ago

0 Wyatt Keller over 1 year ago

TI__Guru** 102455 points

Hello Sahaj,

We always recommend you to use the thermistor mentioned in the datasheet or one with the same characteristics so the coefficients don't need changed.

If you can send the full table of resistance vs. temperature data I can share adjusted coefficients.

Sincerely,

Wyatt Keller

0 Sahaj Saxena over 1 year ago in reply to Wyatt Keller

Prodigy 20 points

Hello Wyatt,

We have decided to choose a different NTC thermistor from Vishay with part number NTCALUG54A103G351. I have attached a excel sheet below with the temperature v/s resistance values. Please share the external temperature coefficients.

RT_curve_NTCALUG54A103G351.xls

Thank You

0 Wyatt Keller over 1 year ago in reply to Sahaj Saxena

TI__Guru** 102455 points

Hello Sahaj,

Please see the coefficients below:

ext_coeff_1 = 38588

ext_coeff_2 = -25567

ext_coeff_3 = 6936

ext_coeff_4 = 240

Let me know if you have any issues.

Sincerely,

Wyatt Keller

Power management

Power management forum

BQ34110: Need the temperature coefficient calculator for BQ34110