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Original question:

BQ24610: BQ24610 Power Path Management In Removable Battery Pack Application

BQ24610: Power path management

Chester Qiu
Prodigy 210 points
Part Number: BQ24610

Hi, team

Here some questions about BQ24610 power path management(PPM):

  • What is the function of PPM in BQ24610?
  • Does PPM mean that the system can reach max power (Pmax=Pbat+Padapator) when system full load and adaptor present ?
  • Simplified system without PPM as shown in below picture. In this simplified system, can the adaptor power the system load?  If it can, and how to power?

Thanks a lot.

  • 0
    TI__Mastermind 24075 points

    Hi Chester,

    1. In Power Path if there is no adapter, the battery can then still supply the system load, meaning that system rail is not lost if adapter is removed. This part uses Direct powerpath, where either the adapter or battery is directly connected to the system load.
    2. Not necessarily. In this direct powerpath architecture when adapter is connected, it can supply both Pbat and Psys, however there is no supplement mode where the battery can supply the system if adapter is overloaded. Either battery solely provides sys, or adapter provides SYS and BAT.

  • 0 in reply to Kedar Manishankar
    TI__Prodigy 210 points

    Hi, Kedar

    Thanks for your valuable reply.

    Another question as below:

    • Simplified system without PPM as shown in below picture. In this simplified system, how do the battery and adaptor power the load?

    Thanks again.

  • 0 in reply to Chester Qiu
    TI__Genius 10385 points

    Chester,

    In the simplified schematic, without Power Path or DPM, the system would be powered directly from the battery pack.

    I hope this resolves your issue,

    Ricardo