5V-12V four series LiFePO battery charging chip, PW4000 support Buck-Boost fast charging PD input

2023-05-12 14:55:08
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1 Circuit board PCB description:

1.1  Name 5V-12V four series LiFePO battery charging chip,PW4000 support Buck-Boost fast charging PD input

1.2  Applications Convenient charging devices, etc.

1.3  Battery pack 12.8V LiFePO batterypack, multiple parallel or four series connection, full 14.4V

1.4  Input voltage 5V-12VWhen charging, the light will be on, and when it is fully charged,the light will turn, and the light will flash without connecting the battery Change the R5 resistancevalue to fast charging voltage 9V,15V,20VIf  you wantto check the resistance value, please check the PW6603 specificationIf R11,R12,C9,PW6603 and USB1 ports are not connected, you can  directly input DC: 5V-20V to charge the battery.

1.5  Max charging current2A

1.6   Introduction to Chip  Functions

1, Lithium battery charging circuit PW4000

PW4000 is a 1-4 lithium-ion battery charging management chip, Up to 3A charging currentsupport voltage rise and fall.

2, USB C port PD fast charge Protocol chip PW6603

PW6603 is a PD fast charge protocolchip, SINK terminal, responsible for protocol communication PD charger to  output its specified  voltage.

2, Circuit diagram



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   16V  22pF

C8

1

0603  25V  1uF

C9

1

220uF 25V Electrolytic capacitance

C10

1

Integrated molded inductor0650-6.8UH

L1

1

0603 LED Green

LED1

1

0603 LED Red

LED2

1

PW4000 Buck-Boost charging IC

PW4000

1

PW6603 charger 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‰   124k

R9

1

0603   1‰   1.2M

R10

1

0603  1%  120k

R11

1

0603  1%  220k

R12

1

USB type C  16PIN

USB1

1

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