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


Related articles across the web

BQ25A Equivalent – Battery SMBus Charge Controller – TI

Part Number : BQ24725A, Marking : BQ25A

Description : 1-4 Cell Li+ Battery SMBus Charge Controller

Package : 20-pin 3.5 × 3.5 mm2 VQFN Type

Manufactures : Texas Instruments


BQ25A Battery Charger Controller IC



The bq24725A ( Marking : BQ25A ) is a high-efficiency, synchronous battery charger, offering low component count for space-constraint, multi-chemistry battery charging applications.

The bq24725A utilizes two charge pumps to separately drive n-channel MOSFETs (ACFET, RBFET and BATFET) for automatic system power source selection.

SMBus controlled input current, charge current, and charge voltage DACs allow for very high regulation accuracies that can be easily programmed by the system power management micro-controller.

The bq24725A uses internal input current register or external ILIM pin to throttle down PWM modulation to reduce the charge current.



BQ25A datasheet pinout

1. SMBus Host-Controlled NMOS-NMOS Synchronous Buck Converter with Programmable 615kHz, 750kHz, and 885kHz Switching Frequencies

2. Automatic N-channel MOSFET Selection of System Power Source from Adapter or Battery Driven by Internal Charge Pumps

3. Enhanced Safety Features for Over Voltage Protection, Over Current Protection, Battery, Inductor and MOSFET Short Circuit Protection


Marking Information

BQ25A Packaging Information


Official Homepage :


BQ25A Equivalent


Related articles across the web