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TP4056 IC – 1A Li-Ion Battery Charger IC

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₹19.00 (excluding 18% GST)

1000 In stock

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Description

The TP4056 is a linear charger IC that integrates key features such as constant current (CC) and constant voltage (CV) charging, along with overcharge protection, temperature monitoring, and status indication. It is designed to charge single-cell Li-ion or LiPo batteries from an external power source such as a USB port or AC adapter. It can handle charge currents up to 1A, making it suitable for most compact battery-operated devices.

Features

  • Complete Charger IC: Provides a complete charging solution, including all the necessary protection and control features.
  • Constant Current and Constant Voltage Charging: Regulates the charging process to maintain a constant current (CC) during the initial phase and switches to constant voltage (CV) as the battery reaches full charge.
  • Charging Current: The IC can supply up to 1A of charging current (adjustable via an external resistor), making it suitable for relatively fast charging of small Li-ion or LiPo batteries.
  • Overvoltage Protection: The IC includes protection to ensure the charging voltage never exceeds the safe limits for Li-ion batteries (typically 4.2V for a single-cell battery).
  • Under-voltage Lockout (UVLO): The IC prevents charging from starting when the input voltage is too low, avoiding potential damage to the battery or charger.
  • Thermal Regulation: The charger adjusts the charging current when the chip temperature exceeds safe limits to prevent overheating.
  • Charge Status Indicators: The TP4056 provides status outputs that indicate charging, full charge, or error conditions using LEDs (for example, a red LED for charging and a green LED for full charge).
  • Integrated Protection Circuitry: Includes protections like overcharge, overdischarge, and overcurrent protection, ensuring battery safety.
  • Small Form Factor: Comes in an SMD (Surface-Mount Device) package, making it ideal for space-constrained designs.
  • Low Quiescent Current: The chip has low quiescent current, which is beneficial for battery-powered applications, minimizing the drain when not charging.

Specifications

  • Charging Voltage: 4.2V (Nominal for a single-cell Li-ion battery).
  • Charging Current: Up to 1A (adjustable with an external resistor).
  • Input Voltage Range: Typically 4.5V to 5.5V (compatible with USB power sources).
  • Output Voltage: 4.2V with a tolerance of ±1% for precision charging.
  • Thermal Shutdown: Built-in thermal protection ensures safe operation by limiting current when the IC reaches about 125°C.
  • Charge Cutoff: Charge is terminated when the battery voltage reaches 4.2V, and the IC maintains the voltage at that level until the charge cycle is complete.
  • Battery Detection: The chip can detect the presence of the battery and will not charge if no battery is connected.
  • Status Output: Provides a charge status output to show the battery’s charging state (charging, full charge, or error).
  • Efficiency: High efficiency with low heat generation, making it suitable for portable applications.
  • Package: Typically available in an SMD package, such as the QFN-16 or SOT-23.

Note

* Product Images are shown for illustrative purposes only and may differ from actual product

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