USB input with 6.1V overvoltage off, 40V voltage protection, single lithium battery 1A charging management board
- 2023-05-12 15:11:49
- lu Original
- 480
1 Circuit board PCB description：
1.1 Name ： USB input with 6.1V overvoltage off, 40Vvoltage protection, single lithium battery 1A charging management board
1.2 Applications: Convenientcharging devices, etc.
1.3 Battery pack: 3.7Vlithium battery pack, multiple parallel or single series connection, full 4.2V
1.4 Input voltage: 5V（ When charging, the light will be on, and when it is fully charged, thelight will turn）
1.5 Max charging current ： 1A
1.6 Introduction to Chip Functions：
1， Lithium battery charging circuit：PW4056
PW4056 Lithium batterycharge management chip， Up to 2.5A charging current， support single series lithium battery charging.
2， Overvoltage protection circuit：PW2606
ThePW2606 is a USB input overvoltage protection chip, with input overvoltage 6.1Voff, 40V input protection and overcurrent 2A protection.Function： 1， Misplaced high voltage protection， 2， USB Hot Swap Protection， 3， Abnormal high voltage protection for damaged fast charger
2， Circuit diagram ：
3 ， PCB diagram and 3D display diagram
4， BOM Material List
|
Comment |
Designator |
Footprint |
Quantity |
|
0603 50V 1uF |
C1 |
0603A |
1 |
|
0603 16V 10uF |
C2, C3 |
0603A |
2 |
|
0603 LED Green |
LED1 |
0603A |
1 |
|
0603 LED Red |
LED2 |
0603A |
1 |
|
0603 1% 5.1K |
R1, R2 |
0603SL |
2 |
|
0603 1% 1K |
R3, R4 |
0603SL |
2 |
|
PW2606 |
U1 |
SOT23-6 |
1 |
|
PW4056 |
U2 |
SOP8 |
1 |
|
USB TYPE C 16PIN |
USB1 |
USB |
1 |
