TP5100 Datasheet – Battery Charger Chip (QFN16)

Part Number : TP5100

Function : Single lithium battery charger management chip

Package : QFN16 Type

Manufactures : Nanjing extension of Microelectronics


TP5100 datasheet circuit


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, undervoltage protection, over temperature protection, short circuit protection, battery temperature monitoring, reverse battery protection.


TP5100 schematic pinout


1. Dual / single 8.4V / 4.2V rechargeable lithium battery
2. Built-in power MOSFET, a switching mode of operation, less heating device, a simple peripheral
3. Programmable charge current, 0.1A – 2A
4. Programmable precharge current, 10% – 100%
5. No external Schottky diode anti-intrusion
6. Wide operating voltage, maximum reach 18V
7. Red and green LED indicates the state of charge


1. Portable equipment, various chargers
2. Smart phone, PDA, mobile cellular phone
3. MP4, MP5 players, tablet computers

TP5100 Datasheet


TP4054 Datasheet – Li-lon Battery Charger IC

This IC is Battery Charger.

Part Number : TP4054

Marking : 54b

Function : Linear Li-lon Battery Charger with Thermal Regulation in SOT

Package : SOT23-5 Type

Manufacturers : NanJing Top Power


TP4054 datasheet circuit

Description :

The TP4054 is a complete constant-current/constant-voltage linear charger for single cell lithium-ion batteries. Its SOT package and low external component count make the TP4054 ideally suited for portable applications. Furthermore, the TP4054 can work within USB and wall adapter. No external sense resistor is needed, and no blocking diode is required due to the internal PMOSFET architecture and have prevent to negative Charge Current Circuit. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature.


TP4054 pinout data


1. Programmable Charge Current Up to 800mA
2. No MOSFET, Sense Resistor or Blocking Diode Required
3. Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk of Overheating
4. Charges Single Cell Li-Ion Batteries Directly from USB Port



1. Cellular Telephones, PDAs, MP3 Players
2. Charging Docks and Cradles
3. Blue tooth Applications

Other data sheets within the file : TP-4054


TP4054 Datasheet PDF

TP4054 pdf