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BQ25890H: Difference between BQ25890H, BQ25895M and BQ25892

Eric Steimle
Expert 2290 points
Part Number: BQ25890H
Other Parts Discussed in Thread: BQ25892, BQ25895M, , BQ25895

I'm working on a design using the BQ25890H, can you help me understand the advantages of using either the BQ25895M or the BQ25892.  What are the basic differences?  I couldn't find an easy way to compare them and the descriptions in the parametric data list leave things out so it's a bit confusing.

Thank you

  • 0
    TI__Expert 8230 points

    Hello Eric,

    All 3 parts belong to the same family of single-cell 5A chargers with the main differences being the following:

    • bq25890H: provides D+/D- detection and includes a programmable D+/D- driver that allows the user to emulate handshaking protocols with different high voltage adjustable adapters (HVDCP) in the market.
    • bq25895M: Is similar to the bq25895 which are used typically in powerbank applications. The bq25895M supports HVDCP also, but by default the support is disabled (can be enabled by an I2C bit). Also, its default charge voltage threshold is 4.35V (vs. 4.2V of its bq25895 counterpart). Also the OTG boost functionality will operate until VBAT reaches 2.5V(2.8V on the bq25895).
    • bq25892: doesn't have D+/D- detection, instead it has a power select pin, PSEL, that can be pulled high or low to inform the charger if the input source is a USB host or a wall adapter.

    Hope this helps.

  • 0 in reply to Fernando Lopez
    Expert 2290 points

    Thank you that makes everything clear and points me to the right part.