5V-24V Input single lithium battery 1A charge, discharge 5V1A power board
- 2023-05-12 14:58:28
- lu Original
- 336
1 Circuit board PCB description：
1.1 Name ： 5V-24V Input singlelithium battery 1A charge, discharge 5V1A power board
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
1.4 Input voltage ： 5V-24V(The light willturn red when charging, light will turn green when fully charged, it will flashwhen it is not connected to the battery)
1.5 Max charging current （ output）： 1A
1.6 Introduction to Chip Functions ：
1， Lithium battery charging circuit：PW4056
PW4056 is a Lithium battery charge management chip， Upto 1A charging current, support 1 lithium battery charging.
2， DC-DC synchronous step-down circuit：PW2303
PW2303 is a Synchronous Buck Chip， Input 5V-24V, output5V, up to 3A, characterized by voltage step-down voltage difference is verylow, and high efficiency.
3， Boost Output chip circuit：PW5300A
PW5300A， input voltage2.2V-16V, output adjustable to 20V, when 3.7V input, 5V output, current up to1200mA.
4， 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 ：
PCB layout is divided into two parts: signal controlcircuit + power circuit
Note1： The blue thick line is the power trace,the layout should be wide, the SW pin is a poweroutput, so the layout should be wide, and it is also a noise source, so the area should be small.
Note2： The red thick line is the power ground, the main points of the drawing board: to be wide, the shorter the distance between the connecting loops at each point, themore holes are punched in the ground
3 ， PCB diagram and 3D display diagram
4 ， BOM Material List .
|
Comment |
Designator |
Quantity |
|
100uF 25V 6.3*7.7mm Electrolytic capacitance |
C1 |
1 |
|
0603 50V 0.1uF |
C2 |
1 |
|
470uF 10V 6.3mm Electrolytic capacitance |
C3 |
1 |
|
0603 220pF 25V |
C4 |
1 |
|
0603 16V 0.1uF |
C5, C10 |
2 |
|
0603 16V 4.7uF |
C6 |
1 |
|
0805 16V 10UF |
C7 |
1 |
|
0805 16V 22UF |
C8, C9 |
2 |
|
SS34 SMB |
D1 |
1 |
|
Integrated molded inductor 0650-47UH |
L1 |
1 |
|
Integrated molded inductor 0630 -4.7UH |
L2 |
1 |
|
0603 LED Green |
LED1 |
1 |
|
0603 LED Red |
LED2 |
1 |
|
0603 1% 100K |
R1 |
1 |
|
0603 1% 25.5K |
R2 |
1 |
|
1206 1% 50mR |
R3 |
1 |
|
0603 4.7R 5% |
R4 |
1 |
|
0603 1% 1k |
R5, R6 |
2 |
|
0603 82K 1% |
R7 |
1 |
|
0603 11K 1% |
R8 |
1 |
|
0603 20K 1% |
R9 |
1 |
|
PW2303 PWCHIP |
U1 |
1 |
|
PW4056 PWCHIP |
U2 |
1 |
|
PW3230 PWCHIP |
U3 |
1 |
|
PW5300A PWCHIP |
U4 |
1 |
|
USB |
USB2 |
1 |
