BQ24050DSQT

BQ24050DSQT

Category: Elec-component

Specifications
SKU
12612469
Details

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Parameter Description Min Typ Max Unit
Input Voltage (VIN) Operating input voltage range 3.0 - 6.0 V
Output Voltage (VOUT) Battery regulation voltage 4.2 - - V
Charging Current (ICHG) Maximum charging current - 1.0 1.5 A
Quiescent Current (IQ) Operating quiescent current - 80 - 渭A
Thermal Shutdown Temperature (TSD) Temperature at which the device shuts down to prevent overheating - - 150 掳C
Battery Temperature Monitoring (TMON) Temperature monitoring range for battery -40 - 85 掳C
Battery Pre-charge Current (IPRECHG) Pre-charge current for deeply discharged batteries - 0.1 - A
Charge Termination Current (ITERM) Charge termination current - 0.1 - A
Charge Time Limit (TCHG) Maximum charge time before terminating charge - - 12 hours
Fault Response Time (TFault) Time to detect and respond to faults - 1.5 - s

Instructions:

  1. Power Supply Connection:

    • Connect the input power supply (VIN) within the specified range (3.0V to 6.0V).
    • Ensure the power supply is stable and free from noise.
  2. Battery Connection:

    • Connect the battery to the VOUT pin.
    • The battery should be capable of handling the maximum charging current (1.5A).
  3. Charging Configuration:

    • Set the charging current using an external resistor connected to the ISET pin.
    • For typical applications, set the charging current to 1.0A.
  4. Thermal Management:

    • Place the device in a well-ventilated area to avoid overheating.
    • Monitor the temperature to ensure it does not exceed 150掳C.
  5. Temperature Monitoring:

    • Use an external thermistor or other temperature sensor to monitor the battery temperature.
    • Ensure the battery temperature remains within the safe range (-40掳C to 85掳C).
  6. Pre-charge and Termination:

    • The device will automatically pre-charge the battery if the voltage is below the threshold.
    • Charging will terminate when the current drops below the termination current (0.1A) or after 12 hours.
  7. Fault Handling:

    • The device will detect and respond to faults within 1.5 seconds.
    • Check the fault status and take appropriate action if necessary.
  8. Quiescent Current:

    • The device operates with a low quiescent current of 80渭A to minimize power consumption.
  9. Safety Considerations:

    • Always follow safety guidelines for handling lithium-ion batteries.
    • Do not short-circuit the battery or connect it in reverse polarity.
  10. Testing and Validation:

    • Perform initial testing with a known good battery and verify all parameters.
    • Validate the charging process and ensure the battery is charged correctly.
(For reference only)

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