MP3429 Evaluation Board

The board used to test MP3429, see the actual picture for specific options:

VIN_SLT is the chip VIN jumper, which can be connected with a jumper cap or an external power supply;

QC_EN is the fast charge control jumper. When using the functions provided by the fast charge chip, please short-circuit it with a jumper cap;

MODE is the chip mode jumper, please refer to the circuit diagram and data sheet for details;

QC_MODE is the fast charge mode jumper. When using FS112, high-voltage fast charging is prohibited when FG is shorted with a jumper cap. When FR is shorted, the maximum fast charging voltage is 9V. If F is left floating, fast charging is normal. Use other fast charging identification chips. Please refer to the corresponding manual.

It is best to calculate the resistor and capacitor on the COMP pin according to your needs;

FS112 can be replaced with IP2161 FP6601, but the SCP fast charging function will be lost;

The 25K resistor can be replaced by a parallel connection of 27K and 330K resistors;

The windowed part on the board can be buried with copper and tin according to the current demand, and a heat sink with an area of ​​4*2CM can be pasted on the back with insulating and thermally conductive glue.

Some waveforms: (Oscilloscope: Dingyang SDS1102X-C)