Lithium battery charge and discharge board 5V2A charge and boost discharge 5V2.4A

2023-05-12 15:04:14
lu
Original
300

1 Circuit board PCB description

1.1  Name Lithium battery charge and discharge board 5V2Acharge and boost discharge 5V2.4A

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(Light up LED1when charging, LED2 lights up when fully charged, LED1 flashes when not  connected)

1.4  Input USB type C 5VCharge Current 2000mA

1.5  Output 5V voltage, current upto 2400mA (3.7V lithium battery voltage)

1.6  Introduction to Chip Functions

1, B lithium battery charging circuitPW4052

PW4052 is a Lithium  battery charge management chip, Up to 2A charging current, support 1 multi-parallel  lithium battery charging.

2, C boost output chip circuitPW6276

PW6276, input voltage 3V-4.5V,output adjustable to 5.3V, current up to 2400mA.

3, A lithium battery protection circuitDW01A

DW01A is a lithium  battery charge and discharge protection board chip, peripheral with MOS, can  expand the overcurrent protection current.


2, Circuit diagram

Note 1: In the picture above, the battery ground  is separated from the GND(Ground).

3 PCB diagram and 3D display diagram

                  

4 BOM Material List                                            .

Comment

Designator

Quantity

0603 16V  0.1UF

C1, C3, C10

3

0805 16V 22UF

C2, C5, C6, C9

4

0603 16V 3.3nF

C4

1

0805 16V 10UF

C7

1

0603 16V  4.7nF

C8

1

0650 Integrated molded inductor 3.3UH

L1, L2

2

0603 LED Red

LED1

1

0603 LED Blue

LED2

1

PW8205A8TS PWCHIP

Q1, Q2

2

0603 1% 1K

R1

1

0603 1% 100R

R2

1

0603 5% 1k

R3

1

0603 5% 0.5R

R4

1

1206 1% 50mR

R5

1

0603 1% 300K

R6

1

0603 1% 40K

R7

1

0603 1% 2.2R

R8

1

0603 5% 100K

R9

1

0603 1% 5.1K

R10, R11

2

DW01A PWCHIP

U1

1

PW4052 PWCHIP

U2

1

PW6276 PWCHIP

U3

1

PL515 USB Intelligent charging protocol

U6

1

USB TYPE C 6PIN

USB1

1

USB A

USB2

1


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