Description
The TP5100 Lithium Battery Charger Board is a high-efficiency, dual-purpose charge management module capable of supporting both single-cell (4.2V) and two-cell series (8.4V) lithium-ion or LiPo batteries. Powered by the TP5100 dual-switch buck charging IC, this module features a wide 5V to 15V DC input voltage range and a 400kHz high-frequency switching mode, allowing for compact external components and minimal heat generation even at high charging currents.
Engineered for versatility and robust protection, the board includes a complete three-phase charging cycle (pre-charge, constant current, and constant voltage), programmable charging current up to 2A, and extensive built-in safeguards including input overcurrent, under-voltage, over-temperature, short-circuit, battery temperature monitoring, and reverse battery protection.
Note: Product images are for reference only; actual appearance or labeling may vary slightly based on manufacturing batches. Battery and cables are not included.
Key Features
- Dual-Voltage Configuration Support: Switchable or configurable for charging either single-cell (4.2V) or dual-cell series 2S (8.4V) lithium batteries.
- Wide 5V–15V DC Input Range: Compatible with diverse power sources (maximum input voltage tolerance up to 18V).
- Programmable High-Current Output: Adjustable charging current from 0.1A up to 2.0A via external resistors.
- Three-Phase Charging Cycle: Manages power delivery through pre-charge, constant current, and constant voltage phases for optimal cell health.
- Comprehensive Hardware Protections: Features built-in thermal chip protection, input overcurrent/under-voltage lockout, short-circuit safeguards, battery temperature monitoring, and reverse battery shutdown.
- Dual-Color Status Telemetry: Onboard LEDs indicate operating status (Red during active charging; Blue/Green when fully charged or unloaded).
- Compact & Lightweight Footprint: Measures 18 mm width with a 5 mm height profile and weighs just 3 grams for effortless enclosure integration.
Benefits
- Flexible Multi-Cell Charging: A single versatile board handles both 4.2V single-cell and 8.4V dual-cell battery packs, reducing inventory needs for DIY projects.
- High-Efficiency Thermal Management: 400kHz switching buck architecture significantly reduces thermal dissipation compared to traditional linear chargers.
- Enhanced Battery Lifespan: Precision three-phase charging and automated protections prevent overcharging, thermal stress, and premature cell degradation.
- Customizable Current Output: Easily adapt the charging rate to match various battery capacities by modifying the programmable sense resistor.
Applications
- Portable Industrial & Field Equipment: Robust charging module for handheld diagnostic tools and portable instruments.
- DIY Dual-Cell Power Packs: Custom power management for 2S 8.4V battery assemblies and portable lighting gear.
- Electric Tools & Hobby Models: Efficient high-current charging circuit for motorized toys, robotics, and small cordless devices.
- Maker & Prototyping Projects: Versatile single/dual-cell lithium battery charging board for custom enclosures and Arduino-powered field builds.
Package Includes
- 1 x TP5100 4.2V / 8.4V Single & Double Lithium Battery Charging Board
- 1 x Instruction Manual / Quick Guide
Specifications
| Parameter | Specification |
|---|---|
| Item Type | TP5100 Dual/Single-Cell Lithium Battery Charger Management Board |
| Input Voltage Range (V DC) | 5V to 15V DC (Max input tolerance up to 18V) |
| Battery Compatibility | Single-Cell 4.2V or Dual-Cell 2S 8.4V Lithium-Ion / LiPo Batteries |
| Charging Current Range (A) | Programmable from 0.1A to 2.0A (Adjustable via external resistor) |
| Charging Architecture | Switching Mode Buck Regulator (400 kHz Switching Frequency) |
| Charging Phases | Trickle Pre-Charge | Constant Current (CC) | Constant Voltage (CV) |
| Safety Protections | Chip Over-Temperature | Input Overcurrent & Under-Voltage | Short-Circuit | Battery Temperature Monitoring | Reverse Battery Shutdown |
| Status Indicators | Dual-Color LEDs: Red (Charging) | Blue/Green (Fully Charged / Unloaded) |
| Physical Dimensions (Width × Height) | 18 mm width × 5 mm height (Standard compact board layout) |
| Net Weight / Shipping Weight | 3 g / 0.005 kg |
| Shipping Dimensions | 10 cm × 6 cm × 5 cm |
