TP5100 is a switching-buck type (double 8.4V / single 4.2V) lithium battery charging management chip. Its QFN16 ultra-compact packaging and simple peripheral circuit make TP5100 ideal for portable devices with large current charging management applications. Meanwhile, TP5100 has built-in input overcurrent protection, undervoltage protection, over temperature protection, short circuit protection, battery temperature monitoring, and reversing battery protection.

■ 2S(8.4V)/1S(4.2V) rechargeable lithium battery

■ Built-in power MOSFET, switching operation mode, less heat, simple peripheral

■ Programmable charging current, 0.1A--2A

■ Programmable pre-charge current, 20% - 100%

■ No need of external Schottky diode for anti-intrusion

■ Wide operating voltage up to 12V

■ Red and green LED charging status indicator

■Chip temperature protection, overcurrent protection, undervoltage protection

■ Battery temperature protection, reverse battery shutdown, short circuit protection

■ Switching frequency: 400KHz, available inductance: 4.7uH-22uH

■ PWR_ON-power, battery charging switching control

■ Less than 1% of charging voltage control precision

■ Trickle, constant current, constant voltage charging stages to protect battery

■ QFN16 4mm * 4mm ultra-small packaging