TP5100 step-down 8.4V / 4.2V single lithium battery charge management IC

TP5100 2 Ampere switch buck 8.4 Volts / 4.2 Volts rechargeable lithium battery charge Management IC

TP5100 is a step-down switching double 8.4V / 4.2V single lithium battery charge management chip. QFN16 ultra small package with its simple external circuit, so that the large current charging management application TP5100 ideal for portable devices. Meanwhile, TP5100 built-in input overcurrent, under voltage protection, over temperature protection, short circuit protection, battery temperature monitoring, reverse battery protection.

TP5100 lithium battery charge management IC has a wide input voltage 5 to 18 Volts, the battery trickle charging into pre-charge, constant current, constant-voltage three phase, pre-charge current trickle charge current is adjusted through an external resistor, the maximum charging current of 2 Ampere. TP5100 lithium charge management IC uses frequency of 400kHz switching mode makes it possible to use a smaller peripheral devices, and still maintain a smaller amount of heat in the large current charging. TP5100 built-in power of the PMOSFET, anti-intrusion circuit, there is no need peripheral anti-intrusion protection Schottky diode.

Characteristic of TP5100 Lithium Charge management IC

• Dual / single 8.4V / 4.2V rechargeable lithium battery

• Built-in power MOSFET, a switching mode of operation, less heating device, a simple peripheral

• Programmable charge current, 0.1A - 2A

• Programmable precharge current, 10% - 100%

• No external Schottky diode anti-intrusion

• Wide operating voltage, maximum reach 18V

• Red and green LED indicates the state of charge

• Chip temperature protection, overcurrent, under voltage protection

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

• Switching frequency of 400KHz, and more available inductance 20uH

• PWR_ON- power, battery-powered switching control

• Charging voltage control accuracy of less than 1%

• Trickle, constant current, constant voltage charging three sections, a battery protection

• QFN16 4mm * 4mm using ultra small package