Lithium battery charging and discharging board 5V0.5A, Charging and discharging 5V1A, with input OVP
- 2023-05-12 14:58:52
- lu Original
- 276
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 |
