TP4056 High Current 1 a precautions for use

Source: TP4056 High Current 1 a precautions for use

TP4056 is a high-current charging product in the lithium battery charging product series launched by Nanjing Extension Micro Integrated Circuit Co., Ltd. A single-cell Li-ion battery charging chip with a maximum current of 1 a, a peak current of 1.1A, agood environment and even a peak of 1.2A.

Customers in the high-current specific use please note the points:

Note that the bypass capacitance of the power input and the bat output should be close to the chip when the PCB is drawn.

       Enter the supply voltage. Voltage voltage no-load in > good. Considering the general adapter, the Fire cow output is 5-5.5v0.5 Ohms around the power resistor to buck. As long as the actual voltage to the chip is guaranteed

chip using the SOP8 with the heatsink package, please connect the heatsink and PCB board, the heatsink can be grounded or suspended potential. No other potential can be connected. A large area of copper cooling, especially without solder mask the heat effect is better.

Test Description:

Customers can use a larger battery to test the charging current, and good connection (note that the wire should not be too long and too thin). The battery voltage is controlled at a typical voltage of around 3.7V, and current values are recommended to be read directly via an input adjustable power supply. If you need to access the ammeter readings, be sure to connect to the chip power input port. Do not connect to the battery side.

TP4056 High Current 1 a precautions for use