南京拓微集成电路有限公司
NanJing Top Power ASIC Corp. TP5000 (2A switching 4.2V lithium battery / 3.6V
LiFePO4 Charger)
Description
TP5000 is a switching buck single manganese lithium battery / LiFePO4 battery
charge management chip. Its QFN16 ultra-compact package with simple
peripheral circuit, making the TP5000 is ideal for portable equipment large
current charging management applications. Meanwhile, TP5000 built-in input
overcurrent, undervoltage protection, over temperature protection, short circuit
protection, battery temperature monitoring, reverse battery protection.
TP5000 has a wide input voltage, divided into three stages Trickle pre-charge,
constant current, constant voltage trickle charge the battery pre-charge current,
constant current charging current adjusted through an external resistor, the
maximum charging current of 2A. TP5000 switching frequency of 800kHz
operating mode so that it can use smaller external components and smaller
heat remains in the high current charging. TP5000 Built-power the PMOSFET,
anti-intrusion circuit, so there is no need anti-intrusion perimeter protection
Schottky diodes. TP5000 constant current function can also be used dry
batteries in 2 strings of lithium batteries or 4 string input, constant current drive
0.5-7W white LED. Characteristic
■ Single 4.2V lithium manganese or 3.6V LiFePO4 battery charge
■ Built-in power MOSFET, switching mode,
The devices less heat, simple peripheral …