TP5000 charging board module 3.6/4.2V Li ion battery Li iron phosphate battery 1A charging board

TP5000 Li ion battery Li iron phosphate battery 1A current 4.2/3.6V
function: charge Li battery and Li iron phosphate battery. Full of self-stopping. Red and green double lights indicate.
Size: 21.5*14.5*4.2mm
usage: TP4056 4057 charging board usage is the same.
1. The Li battery only needs to connect the 5V power supply and output B + B- connect the battery. The red light is on during charging, and the charging stops when it is full, and the green light is on after charging.
2. For Li iron phosphate battery 3.6V, just soldering iron to open the tin point between the two pads. The power supply battery connection method is unchanged as described above. If you need to change and recharge the 4.2V Li battery, you can use the solder pad to connect it back.

advantages: switching buck mode, the efficiency is higher than the linear charging circuit, and the heat is much smaller. The charging current is 1A, and the constant current is maintained at 1A for full charging. No additional heat dissipation is required, which reduces the influence of heat generation on the charging current. Reduce the charging time. Optional ordinary Li ion Li polymer battery or Li iron phosphate battery, only a jumper can change the setting.
Parameters:
input:4.5-9V
output voltage:4.2V/3.6V plus or minus 1% (board default Li-ion battery 4.2V)
output current: default 1A
the efficiency test will be described in detail later. If the buyer tests the efficiency by himself, it is not recommended to test the battery terminal voltage. Please skip the Rs sampling 0.1 ohm resistance test. During the test, the input power supply is close to the circuit board. Reducing the connection length will affect the efficiency test. Affect, it is recommended to increase the capacitance test at the input. It is recommended for voltage and current test that ammeters with precision are not recommended to directly read the power digital display. The current test can be directly connected in series with the positive electrode of the battery. It is only necessary to ensure that the battery is lower than 3.9V and use a large-range ammeter for testing.

Features:

the whole edition uses precious metal ceramic capacitors, X7R temperature characteristics, performance + performance + stability far exceeds tantalum capacitors!

Copper with large current small volume inductor, full closed magnetic low loss and low interference!

Single-sided machine mounting, overall 4mm, small area, good heat dissipation, exposed copper on the back for easy installation and heat sink mounting

based on the DC-DC step-down, the efficiency is much higher than the linear charging circuit, and the heat generation is much smaller. The charging current is 1A, but the input current only needs about 0.7A

optional Li iron phosphate battery or ordinary Li ion/Li polymer battery, only a jumper can be set

small size, 1 hair coin size, 1A charging without additional heat dissipation

with overheating protection, overheating will automatically reduce the current to prevent burnout

full-plate high-precision resistor, full-volume 1210 noble metal multilayer ceramic capacitor X7R stable temperature characteristics

full self-stop, two-color charging status indicator

finished product parameters:

volume: 21.5mm * 14.5mm * 4.2mm, ultra small, 1 cent coin, single-sided mount reflow soldering

input: 4.5-9V (no more than 7V is recommended)

output voltage: 4.2V/3.6V plus or minus 1% jumper selection

output current: default 1A can be customized 0.5-2A, greater than 1. Need to add heat dissipation

4 terminals, 2 inputs, 2 batteries, and a welding position with in-line LED

method of use:

 red-green or red-green light-emitting diode is included with the circuit. You need to solder it to the circuit yourself. As shown in the baby diagram, the middle of the long foot, the middle and long foot is close to the chip, and the short foot is close to the outside.

The power terminal is connected to a 4.5-7V power supply, the current is greater than the charging current, and the green light is on at this time

the battery is terminated with a Li battery or a Li iron phosphate battery. If the battery needs to be charged, the red light will turn on

if you need to adjust the current, please modify the current you need at the current sampling resistor. Sampling voltage 0.1V, current = 0.1/resistance value

the circuit has been welded with a 0.1 ohm resistor and there is still a vacancy.

 0.2 ohm resistor is welded in space and the current is set to 1.

 0.1 ohm resistor is welded in space and the current is set to 2A.

Remove the original R100(0.1 ohms) and weld a 0.2 ohm resistor with the current set to 0.

Charging current greater than 1A recommended installation of heat sink

if you need to charge ordinary Li battery (3.6 or 3.7V. The cut-off voltage is 4.2V), please connect it with a drop of tin on the solder joint marked F on the circuit board.

If you need to charge Li iron phosphate battery (3.2V. Cut-off voltage 3.6V), please remove the solder on the standard F solder joint