• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 257 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BQ25730: Input Current Optimizer (ICO)

Yoshinobu Kagawa
Expert 2030 points
Part Number: BQ25730

1. If the input current is limited by the ICO, how is the System voltage, charging voltage, and charging current affected?

Am I correct in understanding that the behavior will be as described in 9.3.17 Input Source Dynamic Power Management?
(If the charging current is limited first, and if the charging current is further limited to 0A, but there is still insufficient power to the System, the System voltage will drop and switch to battery discharge when it falls below the battery voltage?)

2. 
9.3.18 What does "For a recognized input adapter" mean in the Input Current Optimizer (ICO) description?
 Are there special controls for some specific adapters?

3.
9.6.13 ChargeOption3 Register (I2C address = 35/34h) [reset = 0434h] About EN_ICO_MODE

Is it correct to understand that even if EN_ICO_MODE is set to Disable, the function of 9.3.17 Input Source Dynamic Power Management is still enabled?
I do not understand the difference between 9.3.17 Input Source Dynamic Power Management and 9.3.18 Input Current Optimizer.

Regards,
Kagawa

  • 0
    TI__Mastermind 33015 points

    Hi Kagawa-san,

    We have an application note for the ICO operation. Here is the link. We hope this apps note helps your understanding. As I said, I need your help to do the evaluation first to understand the basic operations with the first-hand evaluation. 

    Regards,

    Tiger