南京拓微集成电路有限公司
NanJing Top Power ASIC Corp. TP4056 1A Standalone Linear Li-lon Battery Charger with Thermal
Regulation in SOP-8
DESCRIPTION
The TP4056 is a complete constant-current/constant-voltage linear charger for single cell
lithium-ion batteries. Its SOP package and low external component count make the TP4056
ideally suited for portable applications. Furthermore, the TP4056 can work within USB and wall
adapter.
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. The charge voltage is
fixed at 4.2V, and the charge current can be programmed externally with a single resistor. The
TP4056 automatically terminates the charge cycle when the charge current drops to 1/10th the
programmed value after the final float voltage is reached.
TP4056 Other features include current monitor, under voltage lockout, automatic recharge and
two status pin to indicate charge termination and the presence of an input voltage. ABSOLUTE MAXIMUM RATINGS FEATURES Input Supply Voltage(VCC)：-0.3V～8V TEMP：-0.3V～10V CE：-0.3V～10V BAT Short-Circuit Duration：Continuous BAT Pin Current：1200mA PROG Pin Current：1200uA Maximum Junction Temperature：145℃ Operating Ambient Temperature Range：-40
℃～85℃ Lead Temp.(Soldering, 10sec)：260℃ Programmable Charge Current Up to
1000mA No MOSFET, Sense Resistor or Blocking
Diode Required Complete Linear Charger in
SOP-8
Package for Single Cell Lithium-Ion
Batteries Constant-Current/Constant-Voltage Charges Single Cell Li-Ion Batteries Directly
from USB Port Preset 4.2V Charge Voltage with 1.5% …