Tp4056 Current Resistor

Adjustable charging current programmed externally with a single resistor.

Tp4056 current resistor. Maximum charging current is only 1 a. Again the charger does a cc cv charging because the charge current is lower the termination current is also lower. Replacing the standard 1 2 kohm resistor with a 2 157 kohm reduces the charge current to 470ma. Here a 0603 resistor is placed next to an old style quarter watt resistor.

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. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature.

Standard tht case output charging voltage is fixed 4 2 v no other choice for different types of batteries life etc mini datasheet. The resistor is a 0603 smd resistor i e. Here a 0603 resistor is placed next to an old style quarter watt resistor. Tp4056 current programming resistor the programming resistor r3 or rprog is set to 1k2 which provides 1a programming charge rate or 1c.

The tp4056 automatically terminates the charge cycle when the charge current drops to 1 10th the. The ic tp4056 is featured to automatically shut down the charging cycle as soon as the charge current has dropped to 1 10th the set value after the final float voltage is accomplished. Tp4056 status indicator leds. Output current controlling resistor.

A table of matching values for r prog and battery current i bat is available in tp4056 datasheet at the end of the article. It is 1 6 x 0 8 mm. The output charging current of the module can be controlled by a single resistor shown in the above module image. Not available in dip 8 package i e.

If your battery is not 1000mah 1ah then you need to remove r3 and replace it with the correct one following the information in the table on the right. Endgroup samgibson dec 25 16 at 16 59. Also note that the ic will get hot at 1a charging current and the ic may reduce the charging current to limit its own temperature. The resistor is a 0603 smd resistor i e.

Replacing the standard 1 2 kohm resistor with a 2 157 kohm reduces the charge current to 470ma. Maximum input voltage is only 8 v. Charge current by default 1a. Again the charger does a cc cv charging because the charge current is lower the termination current is also lower.

The charge voltage is fixed at 4 2v and the charge current can be programmed externally with a single resistor. It is 1 6 x 0 8 mm. However this value can be change by changing the different value resistor at left bottom corner of the board besides the in pad. Tp4056 charging module is a small size li ion battery charger module.