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XPD618 Scheda tecnica(PDF) 13 Page - SHEN ZHEN FINE MADE ELECTRONICS GROUP CO., LTD.

Il numero della parte XPD618
Spiegazioni elettronici  USB Type-C PD and Type-A dual-port controller
PDF  14 Pages
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Produttore elettronici  SUPERCHIP [SHEN ZHEN FINE MADE ELECTRONICS GROUP CO., LTD.]
Homepage  https://www.superchip.cn
Logo SUPERCHIP - SHEN ZHEN FINE MADE ELECTRONICS GROUP CO., LTD.

XPD618 Scheda tecnica(HTML) 13 Page - SHEN ZHEN FINE MADE ELECTRONICS GROUP CO., LTD.

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深圳市富满电子集团股份有限公司
SHEN ZHEN FINE MAD ELECTRONICS GROUP CO., LTD.
XPD740
USB Type-C PD 和 Type-A 双口控制器
Version 1.4
第
13页 共 14页
Copyright©2020, 云矽半导体
9.2 DC-DC 应用图
图中所示元器件参数供参考,可以根据实际应用进行调整。
前端电源的反馈电阻网络的分压电阻
RFB1 必须接 100 kΩ。Type-A 口 VBUSA 通路上的
PMOS 推荐选用耐压值 20V 以上,电流能力 3A 以上。Type-A 口的电流检测电阻 RS 可以
选择
5%精度电阻。
9.3 PCB layout 注意事项
1.10mohm 采样电阻的走线采用开尔文连接方式,注意芯片管脚 GND 与该电阻的连
接时应先连接到电阻末端然后再与整个
PCB 的 GND 网络连在一起,走线尽量粗而
短;
2.输入电容 CVPWR 以及输出电容 CVBUS 尽量靠近芯片;
3.PCB 布局时尽量避免与主发热器件摆放在一起;
4.尽量避免 VFB 连线受到干扰;
5.USB Type-A 口的外壳禁止连接到 PCB 板上的 GND 网络,外壳可以接 ISP2。



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