Elec-component
BQ24133RGYT
BQ24133RGYT

 

BQ24133RGYT

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Category: Elec-component Available (Qty:9999999)
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Description

BUY BQ24133RGYT https://www.utsource.net/itm/p/5882376.html
1.6-MHz Synchronous Switch-Mode Li-Ion and Li-Polymer Stand-Alone Battery Charger with Integrated MOSFETs and Power Path Selector

Parameter Symbol Min Typical Max Unit Description
Input Voltage VIN 3.9 6.0 V Operating input voltage range
Battery Voltage VBAT 2.5 4.5 V Operating battery voltage range
Charging Current ICHG 500 1000 mA Programmable charging current
Pre-charge Current IPRE 100 500 mA Programmable pre-charge current
Termination Current ITERM 100 500 mA Charging termination current
Thermal Regulation TREG 80 120 °C Temperature at which thermal regulation begins
Charge Timer TCHG 5 10 Hours Maximum charge time before timer expires
Battery Temperature TBAT -20 60 °C Operating temperature range for battery
Quiescent Current IQ 50 100 μA Quiescent current when charging is not active
Status Output STAT Logic Status output indicating charging state (high/low)
Fault Detection FAULT Logic Fault detection output (high/low)
Efficiency η 85 92 % Charging efficiency at typical operating conditions

Instructions for BQ24133RGYT

  1. Power Supply Connection:

    • Connect the input power source to the VIN pin.
    • Ensure the input voltage is within the specified range (3.9V to 6.0V).

  2. Battery Connection:

    • Connect the battery to the VBAT pin.
    • Ensure the battery voltage is within the specified range (2.5V to 4.5V).

  3. Programming Charging Current:

    • Set the charging current using an external resistor connected to the ICHG pin.
    • The formula to calculate the charging current is ( I_ = frac{1000 text{ kΩ}} ).

  4. Programming Pre-charge Current:

    • Set the pre-charge current using an external resistor connected to the IPRE pin.
    • The formula to calculate the pre-charge current is ( I_ = frac{1000 text{ kΩ}} ).

  5. Setting Termination Current:

    • Set the termination current using an external resistor connected to the ITERM pin.
    • The formula to calculate the termination current is ( I_ = frac{1000 text{ kΩ}} ).

  6. Thermal Regulation:

    • The device will automatically reduce the charging current if the temperature exceeds 80°C to prevent overheating.

  7. Charge Timer:

    • The device will terminate the charging process if the charge time exceeds the maximum set time (5 to 10 hours).

  8. Status Monitoring:

    • Monitor the STAT pin to determine the charging state (high indicates charging, low indicates not charging).
    • Monitor the FAULT pin to detect any faults (high indicates fault, low indicates normal operation).

  9. Quiescent Current:

    • The device consumes a small quiescent current when not actively charging to maintain system status.

  10. Efficiency:

    • The charging efficiency is typically between 85% and 92%, depending on the operating conditions.

  11. Safety Considerations:

    • Ensure the battery temperature is within the safe operating range (-20°C to 60°C).
    • Use appropriate heat dissipation measures if operating under high load conditions.

By following these instructions, you can ensure optimal performance and safety when using the BQ24133RGYT charger.

(For reference only)

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