Lithium battery charge and discharge board 5V2A charge and boost discharge 5V2.4A
- 2023-05-12 15:04:14
- lu Original
- 300
1 Circuit board PCB description:
1.1 Name : Lithium battery charge and discharge board 5V2Acharge and boost discharge 5V2.4A
1.2 Applications : Convenient charging devices, etc.
1.3 Battery pack : 3.7V lithium battery pack, multiple parallel or single series connection, full 4.2V(Light up LED1when charging, LED2 lights up when fully charged, LED1 flashes when not connected)
1.4 Input : USB type C 5V, Charge Current 2000mA
1.5 Output : 5V voltage, current upto 2400mA (3.7V lithium battery voltage)
1.6 Introduction to Chip Functions :
1, B lithium battery charging circuit:PW4052
PW4052 is a Lithium battery charge management chip, Up to 2A charging current, support 1 multi-parallel lithium battery charging.
2, C boost output chip circuit:PW6276
PW6276, input voltage 3V-4.5V,output adjustable to 5.3V, current up to 2400mA.
3, A lithium battery protection circuit:DW01A
DW01A is a lithium battery charge and discharge protection board chip, peripheral with MOS, can expand the overcurrent protection current.
2, Circuit diagram :
Note 1: In the picture above, the battery ground is separated from the GND(Ground).
3 , PCB diagram and 3D display diagram
4 , BOM Material List .
Comment |
Designator |
Quantity |
0603 16V 0.1UF |
C1, C3, C10 |
3 |
0805 16V 22UF |
C2, C5, C6, C9 |
4 |
0603 16V 3.3nF |
C4 |
1 |
0805 16V 10UF |
C7 |
1 |
0603 16V 4.7nF |
C8 |
1 |
0650 Integrated molded inductor 3.3UH |
L1, L2 |
2 |
0603 LED Red |
LED1 |
1 |
0603 LED Blue |
LED2 |
1 |
PW8205A8TS PWCHIP |
Q1, Q2 |
2 |
0603 1% 1K |
R1 |
1 |
0603 1% 100R |
R2 |
1 |
0603 5% 1k |
R3 |
1 |
0603 5% 0.5R |
R4 |
1 |
1206 1% 50mR |
R5 |
1 |
0603 1% 300K |
R6 |
1 |
0603 1% 40K |
R7 |
1 |
0603 1% 2.2R |
R8 |
1 |
0603 5% 100K |
R9 |
1 |
0603 1% 5.1K |
R10, R11 |
2 |
DW01A PWCHIP |
U1 |
1 |
PW4052 PWCHIP |
U2 |
1 |
PW6276 PWCHIP |
U3 |
1 |
PL515 USB Intelligent charging protocol |
U6 |
1 |
USB TYPE C 6PIN |
USB1 |
1 |
USB A |
USB2 |
1 |