BQ24120: Iset2 Computation

Elisha Tarroza71

Expert 3700 points

Part Number: BQ24120

Hello,

Can you please help confirm if the denominator below should be Icharge or Iprecharge?

Thank you!

over 4 years ago

0 ezhao over 4 years ago

TI__Genius 10240 points

Hi Elisha,

Please refer to the BQ24120 datasheet page 6. The VISET2 should be 100mV. The Icharge in the equation should be Iprecharge as you pointed out. If we replace 100mV for VISET2 and the 0.133A for Iprecharge, we should get RISET2 the same value of 7.5kohm.

Power management

Power management forum

BQ24120: Iset2 Computation