USB PD charger 5V-12V single lithium battery 2A charging solution PW4000
- 2023-05-12 15:11:18
- lu Original
- 186
1 Circuit board PCB description：
1.1 Name ： USB PD charger 5V-12Vsingle lithium battery 2A charging solution PW4000
1.2 Applications: Convenient charging devices, etc.
1.3 Battery pack: 3.7V lithium battery pack, multiple parallel or singleseries connection, full 4.2V
1.4 Input voltage: 5V-12V（ When charging, the light will be on, and when it is fully charged, thelight will turn） Change the R5 resistance value to fast charging voltage 9V,15V,20V （ If you want to checkthe resistance value, please check the PW6603 specification） If R11,R12,C9,PW6603 and USB1 ports are not connected, you candirectly input DC: 5V-20V to charge the battery.
1.5 Max charging current ： 2A
1.6 Introduction to Chip Functions ：
1， Lithium battery charging circuit：PW4000
PW4000 is a1-4 lithium-ion battery charging management chip, Up to3A charging current， support voltage rise and fall.
2， USB C port PD fast charge Protocol chip： PW6603
PW6603 is a PD fast charge protocol chip, SINK terminal,responsible for protocol communication PD charger to output its specified voltage
2， Circuit diagram ：
The default voltage isfull of 4.2V. You can change the charging voltage to 4.35V or 4.4V byfine-tuning the R9.4.2V， you can check PW4000 specification for more details.
3 ， PCB diagram and 3D display diagram
4 ， BOM Material List .
|
Comment |
Designator |
Quantity |
|
100uF 35V 6.3*7.7mm Electrolytic capacitance |
C1 |
1 |
|
0805 25V 22UF |
C2, C7 |
2 |
|
0603 25V 0.1Uf |
C3, C4, C5 |
3 |
|
0603 16V 10Uf |
C6 |
1 |
|
0603 25V 22PF |
C8 |
1 |
|
0603 25V 1Uf |
C9 |
1 |
|
NC |
C10 |
1 |
|
Integrated molded inductor 0650-3.3UH |
L1 |
1 |
|
0603 LED Green |
LED1 |
1 |
|
0603 LED Red |
LED2 |
1 |
|
PW4000 PWCHIP step-down charging IC |
PW4000 |
1 |
|
PW6603 PWCHIP PD voltage protocol chip |
PW6603 |
1 |
|
PW2302A |
Q1 |
1 |
|
1206 1% 10mR |
R1 |
1 |
|
0603 1% 2k |
R2 |
1 |
|
0603 1% 1.5K |
R3 |
1 |
|
0603 1% 2.4k |
R4 |
1 |
|
0603 1% 10k |
R5 |
1 |
|
0603 5% 10k |
R6, R7 |
2 |
|
0603 5% 2k |
R8 |
1 |
|
0603 1‰ 102k |
R9 |
1 |
|
0603 1‰ 255k |
R10 |
1 |
|
0603 1% 120k |
R11 |
1 |
|
0603 1% 220k |
R12 |
1 |
|
USB type C 16PIN |
USB1 |
1 |
