The TP4056 with Protection is a high-performance charging solution that utilizes the modern USB Type-C interface. This module combines the reliable TP4056 linear charging IC with a dedicated battery protection circuit (DW01A and MOSFET). It is designed to charge single-cell 3.7V/4.2V lithium-ion or lithium-polymer batteries while simultaneously protecting them from common electrical hazards.

Specifications

• Charging Method: Linear charging
• Charging Current: 1A (Default)
• Input Voltage: 4.5V to 5.5V
• Full Charge Voltage: 4.2V
• Input Interface: USB Type-C
• Dimensions: 2.6cm x 1.7cm
• Operating Temperature: -10°C to +85°C
• Polarity Reversal: Not Allowed (Will damage the module)

Features

• Over-Charge Protection: Stops charging automatically when the battery reaches 4.2V.
• Over-Discharge Protection: Disconnects the load if the battery voltage drops to approximately 2.4V–2.5V, preventing permanent cell damage.
• Over-Current/Short Circuit Protection: Limits output current (typically ~3A) and cuts power if a short circuit is detected at the load terminals.
• Type-C Convenience: Compatible with modern USB-C cables and power adapters, providing a more robust and reversible connection than older USB standards.
• Dual Status LEDs:
  • Red LED: Active charging.
  • Blue LED: Battery fully charged.
• Separate Battery & Load Terminals: Includes dedicated pads for the battery (B+ / B-) and the output load (OUT+ / OUT-), ensuring the protection IC can accurately monitor the discharge cycle.
• Compact Footprint: Measuring only 2.6cm x 1.7cm, it is easily embedded into small enclosures, portable power banks, and DIY electronics.