Lithium battery charge and discharge board 5V0.5A charge and discharge, input can resist 40V surge

2023-05-12 15:04:53
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1 Circuit board PCB description

1.1  Name Lithium battery charge and discharge board5V0.5A charge and discharge, input can resist 40V surge

1.2  Applications Convenient charging  devices, etc.

1.3  Battery pack 3.7V lithium battery pack, multiple parallelor single series connection, full 4.2VWhen  charging, the light will be on, and when it is fully charged, the light willturn

1.4  Input USB type C 5VCharge Current 500mA

1.5  Output 5V voltage, current upto 500mA (3.7V lithium battery voltage)

1.6  Introduction to Chip Functions

1, B lithium battery charging circuitPW4054

PW4054  Lithium battery charge  management chipUp to 0.5A charging current, support 1lithium battery charging.

2, Overvoltage protection circuitPW2606B

PW2606B is a USB  input overvoltage protection chip, input overvoltage 6.1V shutdown, 40V input  withstand voltage, overcurrent 1A protection.

Function: 1Misplaced high voltage protection 2USB Hot Swap  Protection, 3Abnormal high voltage protection for  damaged fast charger.

3, C boost output chip circuitPW5100-50

PW5100-50, input  voltage 0.7V-5V, output fixed 5V, output current up to 500mA (3.7V input),static current 10uA PW5100-50.

4, 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

0603 1UF  50V

C1

1

0603 4.7UF  16V

C2

1

0603 10UF 16V

C3

1

0603 16V 2.2nF

C4

1

0603 22UF  10V

C5, C6

2

0420 Integrated molded inductor 6.8UH

L1

1

0603 LED Red

LED1

1

0603 LED Green

LED2

1

0603 2K 1%

R1

1

0603 330R 5%

R2

1

0.5R 5% 0603

R3

1

0603 5.1k 1%

R4, R5

2

PW2606B

U1

1

PW4054 PWCHIP

U2

1

PW3230 PWCHIP

U3

1

PW5100-50 PWCHIP

U4

1

USB TYPE C 6PIN

USB1

1


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