Lithium battery charge and discharge board 5V1A, charge and discharge 5V1A, input 6.5V off

2023-05-12 15:04:25
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Original
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1 Circuit board PCB description

1.1  Name Lithium battery charge and discharge board5V1A, charge and discharge 5V1A, input 6.5V off

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 1000mA

1.5  Output 5V voltage, current upto 1200mA (3.7V lithium battery voltage)

1.6  Introduction to Chip Functions

1, B lithium battery charging circuitPW4056H

PW4056H is a  lithium battery charging management chip, built-in OVP overvoltage protection,input up to 6.5V, off charging, input can withstand 28V, up to 1A charging  current, and support for charging 1 multi-parallel lithium battery. Suitable  for products with strict quality requirements.

2, C boost output chip circuitPW5300A

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 circuitPW3230

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 List                                            .

Comment

Designator

Quantity

0805 10UF  50V

C2

1

0603 10UF  10V

C3

1

0805 16V  22UF

C5, C6

3

SS34  SMB

D1

1

Integrated molded inductor 0650 -4.7UH

L1

1

0603 LED Red

LED1

1

0603 LED Green

LED2

1

0603 5.1K 1%

R1, R2

2

0603 1K 1%

R3

1

0603 88K 1%

R4

1

0603 12K 1%

R5

1

0603 2K 5%

R6

1

0603 20K 1%

R7

1

0603 100K 5%

R8

1

PW4056H PWCHIP

U1

1

PW5300A PWCHIP

U2

1

PW3230 PWCHIP

U3

1

USB TYPE C 6PIN

USB1

1

USB

USB2

1

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