Lithium battery charging and discharging board 5V0.5A, Charging and discharging 5V1A, with input OVP
- 2023-05-12 14:58:52
- lu Original
- 281
1 Circuit board PCB description:
1.1 Name : Lithium battery charging and discharging board5V0.5A, Charging and discharging 5V1A, with input OVP
1.2 Applications : Convenient charging devices, etc.
1.3 Battery pack : 3.7V lithium batterypack, multiple parallel or single series connection, full 4.2V(Light up LED2when charging, light up LED1 when charging)
1.4 Input : USB type C 5V, Charge Current 500mA
1.5 Output : 5V voltage, current upto 1000mA (3.7V lithium battery voltage)
1.6 Introduction to Chip Functions :
1, B lithium battery charging circuit:PW4057
PW4057 is a single lithium battery charging management chip, up to 0.5Acharging current, integrated input high withstand voltage OVP overvoltageprotection.
OVP function: 1, Misplaced high voltage protection 2, USB Hot SwapProtection, 3, Abnormal high voltage protection for damaged fast charger.
2, C boost output chip circuit:PW5300A
PW5300A, input voltage 2.2V-16V, output adjustable to 20V,when 3.7V input, 5V output, current up to 1200mA.
3, A lithium battery protection circuit:PW3230
PW3230 is a l ithium battery charging and discharging protection board chip, withouta single peripheral component.
2, Circuit diagram :
3 , PCB diagram and 3D display diagram
4 , BOM Material .
Comment |
Designator |
Quantity |
0603 4.7UF 16V |
C2,C3 |
2 |
0805 16V 22UF |
C4, C5, C6, C7 |
4 |
SS34 SMB |
D1 |
1 |
Integrated molded inductor 0650 -4.7UH |
L1 |
1 |
0603 LED Red |
LED1 |
1 |
0603 LED Green |
LED2 |
1 |
0603 2K 1% |
R1 |
1 |
0603 330R 5% |
R2 |
1 |
0603 20K 1% |
R3 |
1 |
0603 5.1k 1% |
R4, R5 |
2 |
0603 11K 1% |
R6 |
1 |
0603 82K 1% |
R7 |
1 |
PW4057 PWCHIP |
U2 |
1 |
PW3230 PWCHIP |
U3 |
1 |
PW5300A PWCHIP |
U4 |
1 |
USB TYPE C 6PIN |
USB1 |
1 |
USB |
USB2 |
1 |