PCB科技 - 電池電路板製造商對電路板的佈線要求

1 Conventional signal line width and line spacing requirements
Taking into account the processing capacity of the 電池電路板廠, 在設計 電路板 四層或以下, the line width and line spacing are required to be 5.mil; in the six-layer and 八層電路板 設計, 要求線寬和行距為–4.mil. 大電流引線的線寬設計與電源線相同.

2. Power line width and line spacing requirements
1. The line width requirement of VBATT electric line
The trace width requirements from the input end of the battery connector to the power end of the PA are as follows:
When the wire length is less than 60mm, 導線寬度要求為–1.5毫米;
When the trace length is greater than 60mm and less than 90mm, 線寬要求為–2mm.
確保PA正常運行, 從蓄電池接頭到PA的電源線總長度不應大於90mm.
2. The line width requirements of the remaining power leads
Depending on the current, the width of different power lines (working current less than 500mA) is generally set between 0.2mm-0.4毫米.
3. reduce the trace spacing requirements for crosstalk between traces
If crosstalk is easy to occur between two traces, 兩條記錄道之間的距離應為2W寬, 其中W是跡線的寬度, and avoid direct overlap between the upper and lower layers (for example, there is no ground layer isolation).

4. improve the high-frequency characteristics of the trace
In order to improve the high-frequency characteristics of high-speed signal wiring, 接線應採用自然R角轉彎管道. 如果不能完全實現, 應採用135度車削方法, and the use of right-angle or sharp turning wiring should be avoided;
The device grounding PIN should be directly connected to the ground. 如有必要, 應採用最近的接地管道, 但是跟踪的寬度應該是–0.5mm, 應避免使用長線接地.
5.the wiring of large devices
In order to ensure the anti-stripping characteristics of large devices, 例如鉭電容器和電池連接器, 連接到這些設備的焊盤的引線可以加上淚珠或銅, 並且應該添加更多連接到其他層的過孔.

6.the distance between the trace and the edge of the board
The distance between the trace and the edge of the board should be designed to be more than 0.25毫米.