@Radal 05
This video tries when pin 1 is used. Originally as temperature detection.
0:10 Experiment module TP4056
0:41 Removing pin 1 from ground
1:20 Module 4056 easier protection
2:48 Add potentiometer Vcc PIn 1 Ground
3:41 Test results
5:40 View pin 1 . voltage
7:50 Data sheet and block diagram TP4056
Schematic diagram of TP4056
bit.ly/3tDGblE
block diagram tp4056
bit.ly/3EkmWST
The TP4056 is a linear charger module with a dedicated constant current and voltage of 1 lithium-ion battery. This module requires only a few additional components so that power.
it is suitable for all portable applications. TP4056 can work with HP charger voltage in USB or 5V adapter or 5v power supply.
No blocking diode is required due to the internal PMOSFET architecture and has prevented negative Charge Current Circuits. Thermal feedback regulates charge current to limit
temperature during high power operation or high ambient temperature. The output voltage is fixed at 4.2V, and the charge current can be programmed externally with a single resistor.
TP4056 automatically ends the charge cycle when the charging current drops to 1/10
programmed value after the final float voltage is reached.
TP4056 detects low voltage, auto recharge and
two status pins to indicate charge termination and input voltage presence.
FEATURE
Programmable Charging Current Up to 1000mA
No MOSFETs, Current Limiting Resistors or Blocking Diodes required
Complete Linear Charger Package for Single Cell Lithium-Ion
·Constant-Current/Constant-Voltage
· Charge Single Cell Li-Ion Battery Directly
from USB Port
4.2V Preset Charging Voltage with 1.5% error
· Auto Refill
Two Pins Charging Status Output
C/10 . Charging Stop
Low Charge Voltage Threshold 2.9V (TP4056)
·Soft-Start when it is ON right
ABSOLUTE MAXIMUM RATING
· Input Voltage (VCC)：-0.3V～8V
TEMP-0.3V～10V
CE：-0.3V～10V
Continuous BAT Short Circuit Duration
BAT1200mA Pin Pin Current
·Prog Pin Current：1200uA
·Maximum Intersection Temperature：145℃
· Operating Ambient Temperature Range：-40-85℃
Lead Temperature (Soldering, 10 seconds) 260℃