Description

TP5100 Dual Battery Protection Board – NDBC BY LOFTY AGROTECH

The TP5100 Dual Battery Protection Board by NDBC BY LOFTY AGROTECH is an advanced lithium battery charging and management module, engineered to offer high-efficiency, multi-stage charging, and comprehensive protection for both single-cell (4.2V) and dual-cell (8.4V) lithium battery systems. Whether you are a hobbyist, professional developer, or an OEM seeking high-performance battery management, the TP5100 Dual Battery Protection Board delivers reliability, compact design, and intelligent charging features for all modern portable and embedded applications.

With its ultra-compact QFN16 package, simple external circuitry, and powerful built-in protections, the TP5100 Dual Battery Protection Board ensures safe, fast, and thermally stable charging even for high-current scenarios, making it ideal for a wide array of electronics and battery-powered systems.

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Why Choose the TP5100 Dual Battery Protection Board

High-Efficiency Multi-Stage Charging

The TP5100 Dual Battery Protection Board implements a three-phase charging algorithm to maximize efficiency while safeguarding battery health:

1. Trickle / Pre-Charge Stage

   • Slowly charges deeply discharged cells

   • Prevents stress and thermal damage to lithium cells

   • Prepares battery to accept higher current safely

2. Constant Current (CC) Stage

   • Provides adjustable charging current from 0.1A to 2A

   • Rapidly restores battery capacity without overheating

   • Ensures consistent current delivery during charging

3. Constant Voltage (CV) Stage

   • Stabilizes battery voltage to maximum safe limit

   • Prevents overcharging and electrolyte loss

   • Extends lithium cell lifespan

The TP5100 Dual Battery Protection Board automatically transitions between these stages based on voltage and current, delivering safe, intelligent charging without manual intervention.

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Built-In Protections for Complete Battery Safety

Safety is a primary concern for lithium battery applications. The TP5100 Dual Battery Protection Board integrates multiple protections to ensure reliable and safe operation:

• Over-Temperature Protection: Stops charging if internal temperature exceeds safe thresholds

• Over-Current Protection: Prevents excess current draw from damaging batteries

• Under-Voltage Protection: Avoids deep-discharge damage

• Reverse Battery Protection: Protects the board and battery from incorrect polarity connections

• Short-Circuit Protection: Immediate shutdown if wiring faults occur

• Battery Temperature Monitoring: Ensures thermal stability during all phases of charging

With these comprehensive safeguards, the TP5100 Dual Battery Protection Board ensures maximum battery longevity and operational reliability.

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Compact and Efficient Design for Seamless Integration

The TP5100 Dual Battery Protection Board combines high performance and small form factor, making it ideal for developers, hobbyists, and OEMs looking to integrate a reliable lithium battery charging solution into space-constrained devices. Its compact engineering ensures maximum efficiency without compromising protection or functionality.

Ultra-Compact QFN16 Package

The TP5100 Dual Battery Protection Board features an ultra-compact QFN16 package, which simplifies integration into modern portable electronics. This design allows for seamless placement on PCBs of small devices such as power banks, drones, handheld tools, and IoT gadgets. Despite its tiny footprint, the board maintains full charging and protection capabilities.

Small Dimensions and Lightweight

With dimensions of 18mm width × 5mm height and a weight of just 3 grams, the TP5100 Dual Battery Protection Board is extremely lightweight, making it perfect for battery-powered devices where every gram and millimeter counts. Its small size ensures that the board can fit in compact enclosures, reducing design complexity and enabling sleeker, more portable products.

Built-In PMOSFET Anti-Intrusion Circuit

The TP5100 Dual Battery Protection Board includes a built-in PMOSFET anti-intrusion circuit, eliminating the need for additional Schottky diodes. This not only reduces the total component count but also frees up PCB space, simplifying design and lowering production costs. The integrated anti-intrusion protection ensures that high-current charging is safe and stable.

Supports High-Current Charging with Low Thermal Stress

Even with its compact size, the TP5100 Dual Battery Protection Board is capable of handling high charging currents up to 2A while maintaining low heat generation. Its 400 kHz switching frequency and efficient internal circuitry ensure thermal stability, preventing overheating and improving battery longevity.

Optimized for Space-Constrained Applications

The TP5100 Dual Battery Protection Board is designed with efficiency and space optimization in mind. Small form factor, low weight, and minimal external component requirements allow developers to integrate the board into tight, complex designs without sacrificing performance.

Ideal for Portable and Embedded Systems

Thanks to its compact and efficient design, the TP5100 Dual Battery Protection Board is perfect for applications such as:

• Portable power banks

• Miniaturized solar chargers

• Robotics and drone batteries

• Handheld electronics

• Embedded system projects

Developers and hobbyists can now rely on a TP5100 Dual Battery Protection Board that fits almost anywhere while providing robust charging, protection, and efficiency.

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Adjustable Charging Current for Optimal Battery Management

The TP5100 Dual Battery Protection Board provides a highly flexible and user-friendly charging solution by allowing adjustable charging current, enabling developers, hobbyists, and engineers to fine-tune charging parameters for maximum efficiency and battery safety. This feature ensures that the board is compatible with a wide range of lithium-ion battery configurations while maintaining stable operation.

Charging Current Adjustable from 0.1A to 2A

The TP5100 Dual Battery Protection Board allows users to set the charging current anywhere between 0.1A to 2A, providing complete control over the charging rate. This adaptability is crucial when working with sensitive or varying battery chemistries, ensuring that batteries receive just the right current to maximize lifespan while preventing overheating or stress on the cells.

Pre-Charge Current Adjustment from 10% to 100%

For deeply discharged or weak batteries, the TP5100 Dual Battery Protection Board supports a pre-charge mode, where the pre-charge current can be adjusted from 10% to 100% using a simple external resistor. This capability allows users to initiate a slow, safe charge on drained cells before transitioning to a faster constant current mode. Such control protects the battery chemistry and reduces the risk of damage due to sudden high current.

Optimizing Thermal Performance and Charging Speed

The adjustable charging current of the TP5100 Dual Battery Protection Board ensures both thermal efficiency and charging speed. Users can balance heat generation against charging time, particularly when using higher currents. By preventing excessive heat buildup, the board enhances battery safety and ensures consistent performance across multiple charge cycles.

Suitable for Single-Cell and Dual-Cell Batteries

The TP5100 Dual Battery Protection Board is compatible with 1S (4.2V) and 2S (8.4V) lithium batteries, making it versatile for a variety of applications. Users can fine-tune the charging current depending on battery size, capacity, and intended application, from small portable devices to larger dual-cell packs.

Ideal for DIY Projects and Professional Applications

This adjustable charging feature makes the TP5100 Dual Battery Protection Board ideal for multiple use cases:

• DIY electronics and hobby projects

• Portable power banks

• Robotics and drones

• Industrial equipment and testing kits

• OEM electronics development

Whether you are experimenting with small prototype batteries or designing commercial battery systems, the TP5100 Dual Battery Protection Board ensures optimized charging tailored to your specific needs.

Enhancing Battery Lifespan and Safety

By allowing precise control over both main and pre-charge currents, the TP5100 Dual Battery Protection Board protects lithium cells from overcurrent stress and thermal damage. This results in longer battery life, improved reliability, and safer operation in a variety of applications, making it an indispensable solution for developers and hobbyists alike.

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LED Charging Status Indicators

Visual monitoring of battery charge is easy with the TP5100 Dual Battery Protection Board:

• Red LED: Indicates charging in progress

• Green / Blue LED: Indicates full battery charge

• Simple visual feedback for non-technical users

• Reduces the need for external measurement tools

• Improves user experience in consumer electronics and embedded devices

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Wide Input Voltage Range for Flexible Charging

The TP5100 Dual Battery Protection Board is engineered to operate efficiently across a wide input voltage range, making it highly adaptable to multiple power sources and application scenarios. This flexibility is crucial for users seeking versatile battery charging solutions for both single-cell (4.2V) and dual-cell (8.4V) lithium setups.

5V – 15V DC Input Range

The TP5100 Dual Battery Protection Board supports a broad input voltage range from 5V to 15V DC. This wide range allows the board to seamlessly work with a variety of power sources without the risk of overvoltage damage or underperformance. Users can connect USB adapters, wall adapters, or regulated DC supplies safely and efficiently.

Supports Single-Cell and Dual-Cell Batteries

The TP5100 Dual Battery Protection Board is versatile enough to handle both single-cell (4.2V) and dual-cell (8.4V) lithium batteries. This makes it suitable for a wide spectrum of devices, from compact IoT gadgets to dual-cell portable power solutions. Its intelligent charging system automatically adjusts for different battery configurations, ensuring optimal safety and efficiency.

Compatibility with Multiple Adapters and Power Sources

With its wide input voltage tolerance, the TP5100 Dual Battery Protection Board can be powered by a variety of adapters, including USB chargers, portable battery packs, solar panels, and regulated DC power supplies. This flexibility allows designers and hobbyists to integrate the board into diverse systems without worrying about compatibility issues.

Enhanced Application Flexibility

Thanks to the broad input voltage range, the TP5100 Dual Battery Protection Board is ideal for multiple applications, including:

• Portable power banks

• Solar charge controllers

• Robotics and drones

• Handheld electronics

• IoT devices

• Battery-powered tools and toys

Users benefit from a single board that adapts to a wide variety of power configurations, reducing the need for multiple charging solutions.

Safe and Efficient Operation Across Voltage Variations

The TP5100 Dual Battery Protection Board not only supports multiple input voltages but also maintains stable charging performance. Its built-in protections for overcurrent, under-voltage, and thermal safety ensure that batteries are charged efficiently without risk of damage, even under varying input conditions.

Flexibility for Developers and Hobbyists

Whether you are developing a prototype, building a DIY project, or designing commercial battery-powered devices, the TP5100 Dual Battery Protection Board provides the flexibility to work with different power sources while maintaining consistent charging efficiency and battery safety.

By offering a wide input voltage range, the TP5100 Dual Battery Protection Board ensures reliable, adaptable, and safe battery management, making it a versatile solution for modern portable electronics, embedded systems, and renewable energy projects.

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High Switching Frequency for Efficient Charging

The TP5100 Dual Battery Protection Board stands out in battery management for its high switching frequency, which plays a critical role in efficient, safe, and compact charging design. With an integrated 400 kHz PWM switching frequency, this board provides superior performance across various applications.

Integrated 400 kHz Switching Frequency

The TP5100 Dual Battery Protection Board utilizes an integrated 400 kHz switching frequency, allowing the board to operate with exceptional precision. This high frequency ensures rapid regulation of charging current and voltage, enabling consistent energy delivery to lithium cells without overstressing the battery. The result is safer, faster charging that maintains battery longevity.

Reduced Heat Generation

High-frequency operation significantly reduces heat production during charging. The TP5100 Dual Battery Protection Board keeps thermal stress to a minimum even under high-current charging scenarios. Lower heat generation improves battery safety, prevents electrolyte degradation, and enhances the overall lifespan of lithium-ion cells.

Enables Smaller External Inductors

Thanks to the 400 kHz switching design, the TP5100 Dual Battery Protection Board allows designers to use smaller external inductors without compromising charging efficiency. This compact design reduces PCB space requirements, making the board ideal for portable devices, drones, IoT gadgets, and other size-sensitive applications.

High Efficiency at Higher Currents

Even when charging currents reach the upper limit of 2A, the TP5100 Dual Battery Protection Board maintains a high efficiency level. Its optimized PWM switching ensures stable voltage and current, preventing energy loss and minimizing heat buildup. Users benefit from rapid, reliable charging without compromising safety.

Supports Fast, Stable, and Thermally Safe Battery Management

The TP5100 Dual Battery Protection Board provides fast charging while maintaining thermal safety and stability. The high-frequency switching ensures batteries reach full charge efficiently, while the multi-level protection system monitors overcurrent, temperature, and voltage fluctuations in real-time. This guarantees that the batteries are charged safely, even during repeated high-current cycles.

Energy-Saving Advantage

High-frequency switching reduces the energy lost as heat, making the TP5100 Dual Battery Protection Board an energy-efficient solution for long-term battery operation. Lower power dissipation translates into reduced environmental impact and higher system reliability.

The combination of high switching frequency, thermal safety, compact design, and stable charging makes the TP5100 Dual Battery Protection Board an optimal choice for both hobbyist and industrial lithium battery applications. Its efficiency, reliability, and safety make it ideal for portable electronics, solar systems, robotics, and embedded systems.

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Applications of the TP5100 Dual Battery Protection Board

The TP5100 Dual Battery Protection Board is a versatile solution for lithium battery management, making it suitable for a wide range of applications. Its smart charging algorithm, multi-level protection, and compact design allow seamless integration into both consumer and industrial battery-powered systems.

Portable Power Banks

Portable power banks require efficient charging and safe battery management to ensure long-term usability. The TP5100 Dual Battery Protection Board allows for adjustable charging currents, thermal protection, and precise voltage regulation, making it perfect for single-cell (4.2V) or dual-cell (8.4V) battery packs. Users can rely on stable and safe power delivery, even with frequent charging cycles.

Solar Charge Controllers

Solar-powered systems often face fluctuating input voltages and inconsistent sunlight. The TP5100 Dual Battery Protection Board provides intelligent multi-stage charging, including pre-charge, constant current, and constant voltage phases, which safeguard the battery while maximizing energy storage efficiency. Its compact design makes it ideal for integrating into portable or small-scale solar systems.

Robotics and Drones

Battery reliability is critical in robotics and drones, where downtime can disrupt operations or flight. With overcurrent, short-circuit, and thermal protections, the TP5100 Dual Battery Protection Board ensures safe and efficient charging for high-drain lithium batteries. Developers can adjust charging currents for different battery sizes, enhancing both performance and battery lifespan.

Handheld Electronics

From handheld measurement devices to portable instruments, maintaining a safe and stable charge is essential. The TP5100 Dual Battery Protection Board delivers efficient energy management, protects against deep discharge, and provides LED charging indicators for easy monitoring, ensuring that handheld devices remain reliable in field conditions.

Wireless IoT Devices

IoT devices often operate in remote or unattended locations. The TP5100 Dual Battery Protection Board ensures long-term battery health with automatic recharge, sleep mode, and reverse battery protection, making it ideal for low-maintenance, reliable operation in IoT networks.

Electric Toys and Tools

High-drain toys, RC cars, and small power tools require rapid yet safe charging. The TP5100 Dual Battery Protection Board provides adjustable charging current and multi-stage protection to prevent overheating and battery degradation while supporting fast, stable charging.

Battery-Powered Testing Equipment

For laboratory and industrial testing setups, the TP5100 Dual Battery Protection Board provides controlled charging conditions, ensuring accurate and safe energy delivery to test devices, preventing damage and improving reliability.

Embedded System Projects

Engineers and hobbyists can integrate the TP5100 Dual Battery Protection Board into embedded systems for automated power management, providing compact and efficient battery protection for single or dual-cell applications.

The intelligent features, robust protections, and adaptability of the TP5100 Dual Battery Protection Board make it a perfect choice for any application where safe, reliable lithium battery management is required.

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Technical Specifications

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Deep Recharge Capability

The TP5100 Dual Battery Protection Board recovers deeply discharged cells using:

• Pre-charge / trickle charging phase until safe voltage is reached

• Automatic transition to CC and CV stages for faster charging

• Prevents battery stress and prolongs battery lifespan

• Ensures reliable operation for frequently used portable devices

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Battery Chemistry Compatibility

• Li-ion cells

• Li-polymer cells

• High-drain 18650 batteries

• Custom battery packs for DIY and industrial applications

The TP5100 Dual Battery Protection Board supports multiple lithium battery chemistries, ensuring versatility and adaptability.

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Long-Term Benefits of Using TP5100 Dual Battery Protection Board

• Protects battery from overcharging, deep discharge, and thermal stress

• Enhances battery lifespan and efficiency

• Reduces maintenance costs and device downtime

• Improves performance in high-current and repeated charge cycles

• Ideal for portable, solar, and industrial battery-powered systems

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Conclusion

The TP5100 Dual Battery Protection Board by NDBC BY LOFTY AGROTECH is an advanced, compact, and safe lithium battery charging solution. Its multi-stage charging, built-in protections, adjustable current, and intelligent monitoring make it a must-have for developers, hobbyists, and OEMs. Whether designing portable electronics, robotics, power banks, or solar systems, the TP5100 Dual Battery Protection Board ensures reliable, efficient, and safe lithium battery management every time.

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