BQ24715: Shutdown power consumption in battery mode?

Hello Kevin,

kevin.huang_FJXM said:

 What is the current consumption of 4mA for shutdown in battery mode?

Can you explain more on what you mean: What is the current consumption of 4mA for shutdown in battery mode?

I assume that you are referring to 4mA current consumption from the IC

Please refer to section 8.3.6 Battery Over-Voltage Protection (BATOVP):

kevin.huang_FJXM said:

 The GATE on this charging tube （HDRV） also has battery voltage when it is turned off,

Can you explain more on how you have the charger set up when this occurs?

What do you mean when you say turned off, What is turned off?

What is the adapter input voltage/current?

Best Regards,

Christian.

Christian：

1. When we say shutdown, it refers to our machine processing S5 status; The 4mA we measured is the position of the battery input fuse, which is equivalent to the entire charging circuit consuming 4mA of power

2. The adapter is not connected, the input voltage is 0 V, in pure Battery mode

Hello Kevin,

kevin.huang_FJXM said:

The GATE on this charging tube （HDRV） also has battery voltage when it is turned off,

Yes, I tested on an EVM and this is normal.

kevin.huang_FJXM said:

What is the current consumption of 4mA for shutdown in battery mode?

I have to do more research, and I will give you more information tomorrow. 

Can you provide you register values.

Best Regards,

Christian

Hello Kevin,

I have a few more questions:

Can you provide me with the register values when the 4mA consumption is occurring?

Can you provide me with the battery voltage?

Why did you choose a 4.7uH inductor, we recommend using a  2.2 or 3.3uH inductor.

Best Regards,

Christian

hi:

  Can you provide me with the battery voltage?

  reply: The battery voltage is around 14.7V when it is around 10%,

2.Why did you choose a 4.7uH inductor, we recommend using a  2.2 or 3.3uH inductor.

    reply：We will modify the BOM later and choose 2.2/3.3uH

Hello Kevin,

Can you provide me with the register values when the 4mA consumption is occurring?

Best Regards,

Christian