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TP4083

The TP4083 is a single-cell lithium battery charger with OVP protection. It's a single-chip solution with reverse polarity protection for both the battery and the input power supply, supporting charging currents from 3mA to 500mA. Using trickle, constant current, and constant voltage control, the SOT23-6 or DFN2*2-6 package and minimal external components make the TP4083 ideal for portable applications. The TP4083 is compatible with USB power and adapter power supplies. Its 16V overvoltage protection point makes the chip suitable for applications with wider and higher input voltage requirements. When the input voltage is between 6.5V and 16V, the chip still provides a certain output current to charge the battery, reducing charging time. The chip's thermal feedback automatically adjusts the charging current to limit the chip temperature during high-power operation or high ambient temperatures. After the battery reaches the preset voltage, the charging current drops to 1/10 of the set value, and the TP4083 automatically terminates charging. When the input voltage (AC adapter or USB power) is removed, the TP4083 automatically enters a low-current state, with a battery leakage current of less than 1μA. Other features of the TP4083 include undervoltage lockout, automatic recharging, and two status pins to indicate charging completion and input voltage connection.


  • Product Description
    • Commodity name: TP4083
    • 封装: SOT-23/DFN2*2-6
    • 品牌: Topin Microelectronics

    The TP4083 is a single-cell lithium battery charger with OVP protection. It's a single-chip solution with reverse polarity protection for both the battery and the input power supply, supporting charging currents from 3mA to 500mA. Using trickle, constant current, and constant voltage control, the SOT23-6 or DFN2*2-6 package and minimal external components make the TP4083 ideal for portable applications. The TP4083 is compatible with USB power and adapter power supplies. Its 16V overvoltage protection point makes the chip suitable for applications with wider and higher input voltage requirements. When the input voltage is between 6.5V and 16V, the chip still provides a certain output current to charge the battery, reducing charging time. The chip's thermal feedback automatically adjusts the charging current to limit the chip temperature during high-power operation or high ambient temperatures. After the battery reaches the preset voltage, the charging current drops to 1/10 of the set value, and the TP4083 automatically terminates charging. When the input voltage (AC adapter or USB power) is removed, the TP4083 automatically enters a low-current state, with a battery leakage current of less than 1μA. Other features of the TP4083 include undervoltage lockout, automatic recharging, and two status pins to indicate charging completion and input voltage connection.

    Favorable
    Programmable charging current of 3mA-500mA
    Reverse connection protection for VCC input
    Lithium battery positive and negative pole protection
    VCC input OVP: 16V
    For single-cell lithium-ion batteries
    Can cut off power in case of overheating
    With trickle, constant current, and constant voltage control
    Can charge the battery from a USB port
    Automatic recharge
    2 open-drain output pins for charging status
    C/10 charge termination
    The supply current in shutdown mode is
    140uA
    Uses a 6-pin SOT-23/DFN2*2-6 package
    Precisely achieves ±1% preset charging voltage
    High thermal regulation efficiency
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