Three series lithium battery charging and discharging board, 5V2A input and output, input 36V withstand voltage protection
- 2023-05-12 14:57:33
- lu Original
- 192
1 Circuit board PCB description：
1.1 Name ： Three series lithium battery charging anddischarging board, 5V2A input and output, input 36V withstand voltageprotection
1.2 Applications:Convenient charging devices, etc.
1.3 Battery pack: 11.1V lithium battery pack,multiple parallel or two series connection, full 12.46V
1.4 Input （ USB1）： 5V2A（ When 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）
1.5 Output（ USB2）： 5V2.4A
1.6 Introduction to Chip Functions：
1， B lithium battery charging circuit：PW4053M
PW4053M is a lithium battery charging management chip, external MOS, up to 2A chargingcurrent, 5V boost three series lithium battery charging.
2， A lithium battery protection circuit ： PW7126
PW7126 is a three series lithium battery overcharge, overdischarge, overcurrent detection protection circuit chip, parallel MOS can increase the overcurrent protection value.
3， Lithium batteryoutput circuit ： PW2163
PW2163 is a DC-DC buck constant voltage chip, input 4.5V-18V,adjustable constant voltage output voltage value, output up to 3A or 5A current.
4， Input overvoltageprotection threshold circuit ： PW2609
The PW2609 is aUSB input overvoltage protection chip, input overvoltage adjustable thresholdoff, 36V input high withstand voltage.
Function： 1， Misplaced high voltage protection 2， USB Hot SwapProtection， 3， Abnormal high voltage protection fordamaged fast charger.
5， Lithium batterypower equalization circuit ： PW2213
PW2213 is a lithium battery power equalization circuit chip. Multi-string lithium battery andmulti-parallel circuit are available.
2， Circuit diagram ：
PCB layout is divided into two parts: signal control circuit+ power circuit
Note 1： The blue thick line is the power trace, the layout should be wide,； SW part (PW2163 PIN 6 and L1, D1, Q1 three devices connected) is not onlythe power output, but also it is a noise source, the layout should be wide and the area should be small.
Note 2： The red thick line is the power ground, the main points of the drawing board: to be wide, the shorter the distance between the connecting loops at each point, the more holes are punched in the ground.
3， PCB diagram and 3Ddisplay diagram
4 ， BOM Material List
|
Comment |
Designator |
Quantity |
|
0805 16V 22UF |
C1, C2, C10, C11 |
4 |
|
0805 25V 22UF |
C3, C6, C7 |
3 |
|
0603 1UF 25V |
C4 |
1 |
|
0603 0.1UF 25V |
C5, C13 |
2 |
|
0603 0.1UF 50V |
C8, C9 |
2 |
|
0805 50V 10UF |
C12 |
1 |
|
SS34 SMB |
D1 |
1 |
|
Integrated molded inductor 0850-6.8UH |
L1 |
1 |
|
Integrated molded inductor 0850- 3.3UH |
L2 |
1 |
|
0603 LED Red |
LED1 |
1 |
|
0603 LED Green |
LED2 |
1 |
|
PW7126 PWCHIP Lithium battery protection board IC |
PW7126 |
1 |
|
PW4406 PWCHIP |
Q1, Q2, Q3 |
3 |
|
0603 0R 1% |
R1 |
1 |
|
0603 20R 1% |
R2 |
1 |
|
1210 50mR 1% |
R3 |
1 |
|
0603 330K 1% |
R4 |
1 |
|
0603 100K 1% |
R5 |
1 |
|
0603 1K 1% |
R6, R14, R15 |
3 |
|
0603 5.1K 1% |
R7, R8 |
2 |
|
0603 1K 5% |
R9, R10 |
2 |
|
NC |
R11 |
1 |
|
0603 200K 1% |
R12 |
1 |
|
0603 26K 1% |
R13 |
1 |
|
1210 25mR 1% |
R16 |
1 |
|
0603 3M 1% |
R17 |
1 |
|
PW4053M PWCHIP |
U1 |
1 |
|
PW2163 PWCHIP |
U3 |
1 |
|
PW2609PWCHIP |
U4 |
1 |
|
PL515 USB Intelligent charging protocol |
U5 |
1 |
|
USB TYPE C 6PIN |
USB1 |
1 |
|
USB A |
USB2 |
1 |
Note: The BOM for LDO and equalization circuits are not included.
