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BQ25155: Looking for a 2s cell li- ion Charger WITH SHIP MODE

Daniel Zanardi
Prodigy 40 points
Part Number: BQ25155
Other Parts Discussed in Thread: BQ25798, BQ25190, BQ25186, BQ25188

Tool/software:

Hello 

I'm looking for a 2s Li-ion charger with shipping mode , almost like MP2760  ok MP2733 (1 cell)

Do you have any advices ?

Thx

  • 0
    Prodigy 40 points

    It's is also called Standby mode or Storage mode , where , almost no current is drawn of the battery

  • 0 in reply to Daniel Zanardi
    TI__Genius 17725 points

    Hi Daniel,

    You may want to look at the BQ25798. It is a Buck-Boost charger with 1-4s support and an 11uA ship mode.

    Best Regards,

    Juan Ospina

  • 0 in reply to Juan Ospina
    Prodigy 40 points

    Hello Juan , 

    Thanks for your support , but BQ25798 is a little too complexe to use , i won't need OTG or can you clarify that OTG can be totaly dislabed to avoid sourcing power at the input of the charger because i will have a DC/DC converter permanently connected here.

    This dc/dc converter will be on or off sometimes but still connected to the input of the charger

    Tell me If you have simpler parts , with ship mode that can be woke up by external pin ( even 1 cell charger ) 

      

  • 0 in reply to Daniel Zanardi
    Prodigy 40 points

    Before i need to be sure that This mode (OTG)  can be disabled , because as i said above a DC/DC converter will be permently connected to VBUS and not necessary ON 

  • 0 in reply to Daniel Zanardi
    TI__Genius 17725 points

    Hi Daniel,

    For this device, OTG won't be enabled unless there is a register write to enable it (REG0x12, Bit 6, EN_OTG).

    We have multiple single-cell chargers that have an externally disabled Shipmode.

    If you are interested in a linear charger you can look at the BQ25188 or BQ25186. If you would like to integrate external rails you can look at the BQ25190. For a single-cell charger with externally disabled ship mode you can look at the BQ2562x family of devices.

    Best Regards,

    Juan Ospina