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BQ24040 Charger IC schematic

Jacky Chen29
Genius 4735 points
Other Parts Discussed in Thread: BQ24040

Hola,

Below is my schematic of BQ24040 charger IC, do I need to modify it if it has any incorrect？thanks

  • 0
    TI__Mastermind 20240 points

    1. Input bypass capacitor needs to be at least 1uF.

    2. OUT bypass capacitor needs to be at lease 1uF

    3. RPRE-TERM = 2kohm sets the precharge current to 20% of the fast charge current which is 54mA

    4. The TS feature is implemented using an internal 50μA current source to bias the thermistor (designed for use with a 10k NTC β = 3370 (SEMITEC 103AT-2 or Mitsubishi TH05-3H103F) connected from the TS terminal to VSS. Please make sure the thermistor of your choice has the same β for the part to monitor the temperature correctly.

  • 0 in reply to Jing Zou
    Genius 4735 points

    Hola Jing,

    This is great and thank you very so much.