GalaxyElec TP5100 Lithium Battery Charge Management Module User Manual

1. Produto rematadoview

The GalaxyElec TP5100 is a versatile double switch buck charge management chip designed for 8.4V dual-cell and 4.2V single-cell lithium batteries. Its compact QFN16 package and simplified external circuitry make it suitable for portable equipment requiring high-current charging. The module integrates various protection features, including input overcurrent, undervoltage, over-temperature, short-circuit, battery temperature monitoring, and reverse battery protection.

Admite un amplo volume de entradatage range of 5V-18V and features a three-phase charging process: trickle charge, constant current, and constant voltage. The pre-charge and trickle charge currents are adjustable via an external resistor, with a maximum charge current of up to 2A. The 400kHz switching frequency allows for smaller external components and efficient heat management during high-current charging. The built-in power PMOSFET and anti-intrusion circuit eliminate the need for external Schottky diodes for reverse protection.

2. Características clave

• Supports double 8.4V / single 4.2V lithium battery charging.
• Programmable charge current from 0.1A to 2A.
• Programmable steady precharge current (10%-100%).
• Amplio volumen operativotage, up to 18V.
• Red and green LED indicators for charge status.
• Integrated chip temperature protection, overcurrent protection, and undervoltage protección.
• Battery temperature protection, reverse battery shutdown, and short circuit protection.
• Switching frequency of 400kHz, compatible with 20uH and larger inductances.
• PWR_ON pin for power battery switching control.

3. Compoñentes do produto

Figura 1: Arriba view of the TP5100 module. This image displays the main components including the large inductor, the TP5100 integrated circuit, and various resistors and capacitors on the green PCB.

Figura 2: En ángulo view of the TP5100 module. This perspective shows the layout of the components and the solder pads for input, output, and battery connections.

4. Configuración e conexión

Before connecting the TP5100 module, ensure all power sources are disconnected. Observe proper polarity for all connections to prevent damage to the module or connected devices.

4.1 Conexión da alimentación de entrada

• Connect a DC power source (5V-18V) to the input terminals (typically marked VIN+ and VIN- or similar).
• Asegúrese de que a entrada voltage is within the specified range to avoid overvoltage ou undervoltage condicións.

4.2 Conexión da batería

• Connect the lithium battery (single cell 4.2V or double cell 8.4V) to the battery terminals (typically marked BAT+ and BAT-).
• Verify the battery type and voltage match the module's configuration (single or double cell).
• The module automatically detects the battery configuration (4.2V or 8.4V) and adjusts charging parameters accordingly.

4.3 Output Connection (Optional)

• If the module provides a separate output for load, connect your load to these terminals.
• Note that the PWR_ON pin can be used for switching control of the power battery. Consult the datasheet for specific implementation details.

5. Instrucións de funcionamento

Once properly connected, the TP5100 module will begin the charging process automatically.

5.1 Proceso de carga

• Carga de goteo: Se a batería voltage is very low, the module will start with a low current trickle charge.
• Corrente constante (CC): Unha vez que a batería voltage reaches a certain threshold, the module switches to constant current charging, delivering the programmed charge current.
• Vol. Constantetage (CV): As the battery approaches full charge, the module enters constant voltage mode, reducing the current until the battery is fully charged.

5.2 Indicadores LED

• LED vermello: Typically indicates charging in progress.
• LED verde: Typically indicates charging complete or standby.
• Note: Specific LED behavior may vary slightly depending on the module's exact implementation.

5.3 Axuste de corrente

The charge current (0.1A-2A) and precharge current (10%-100%) are programmable via external resistors. Refer to the TP5100 datasheet for detailed resistor value calculations and connection diagrams for current setting.

6. Mantemento e coidados

• Manteña o módulo limpo e libre de po e humidade.
• Evite expoñer o módulo a temperaturas extremas ou luz solar directa.
• Do not apply excessive force or bend the PCB.
• Ensure adequate ventilation, especially during high-current charging, to prevent overheating.
• Regularly inspect connections for looseness or corrosion.

7 Solución de problemas

7.1 Module Not Charging

• Check Input Power: Verifique que a entrada voltage is within the 5V-18V range and the power supply is capable of providing sufficient current.
• Comprobar a conexión da batería: Ensure the battery is correctly connected with proper polarity to the BAT+ and BAT- terminals.
• Batería Voltage: Se a batería voltage is extremely low, the module might be in a protective state or require a very slow trickle charge.
• Indicadores LED: Observe the LED status for any error indications.

7.2 Sobrequecemento

• Reduce Charge Current: If the module is getting excessively hot, consider reducing the programmed charge current.
• Mellorar a ventilación: Ensure the module has adequate airflow.
• Comprobar carga: If an external load is connected, ensure it is not drawing excessive current.

7.3 Incorrect Charge Voltage

• Configuración da batería: Confirm the module is correctly configured for a single (4.2V) or double (8.4V) cell battery. The TP5100 typically auto-detects, but ensure the battery type is compatible.
• Faulty Battery: A damaged or unbalanced battery pack can lead to incorrect charging.

8. Especificacións

Valoracións máximas absolutas:

• Static Input Supply Voltage (VIN): 20V
• BAT Pin Voltage: -8.4 V a 20 V
• BAT Short-Circuit Duration: Continuous

9. Áreas de aplicación

• Portable electronic equipment
• Various battery chargers
• Smartphones and PDAs
• Dispositivos móbiles

10. Garantía e soporte

This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. For specific warranty terms and conditions, please refer to the product packaging or contact your retailer.

For technical support, troubleshooting assistance, or further inquiries, please contact GalaxyElec customer service through their official channels or the retailer from whom the product was purchased.