TP4056 Lithium Battery Charger | Micro USB Module Sri Lanka

TP4056 Lithium Battery Charger | Micro USB Module Sri Lanka

Power your DIY electronics with the TP4056 lithium battery charger module. Designed for 18650 cells, this module offers safe, efficient, and compact charging via Micro USB. Ideal for IoT projects and portable devices.

Specifications

Electrical Parameters

• Input Voltage: 4.5V to 5.5V DC
• Charging Voltage: 4.2V ± 1% (constant voltage)
• Charging Current: Adjustable, default 1A (via resistor configuration)
• Input Current: Up to 1A (based on the charging current setting)
• Efficiency: ~85% at 1A charging current
• Battery Type: Single-cell lithium-ion/lithium-polymer
• Termination Current: 10% of programmed charging current (e.g., 100mA for 1A setup)

Features

1. Protection Circuits:
   • Overcharge Protection
   • Overcurrent Protection
   • Short-circuit Protection
   • Reverse Polarity Protection (limited to input connections)
2. Thermal Regulation: Automatically reduces charging current to prevent overheating.
3. Soft Start: Reduces inrush current during startup.
4. Automatic Recharge: Initiates charging if the battery voltage drops below a preset level (~4.05V).

Adjustable Charging Current

• The charging current can be adjusted by replacing the onboard resistor (RPROG):
  • Default: 1.2kΩ for 1A current
  • Approximate Formula: I_CHARGE = 1200V / RPROG (Ω)

Applications

• DIY Electronics
• Power Banks
• Battery Management Systems
• Portable Devices
• Solar Charging Systems

Operating Conditions

• Operating Temperature: -10°C to +85°C
• Storage Temperature: -65°C to +125°C
• Humidity: 5% to 90% RH (non-condensing)

Safety Recommendations

• Ensure proper heat dissipation if charging at high currents.
• Do not exceed the recommended input voltage (5.5V).
• Use with batteries having built-in protection circuits for maximum safety.

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