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How to connect the remote sense when using LT8627SP in parallel for two-phase operation?

Category: Hardware
Product Number: LT8627SP

Currently, the LT8627SP design in my schematic is as shown in the figure, with the green bold lines representing the remote sense traces. Regarding the use of LT8627SP, I have the following four questions:

1.
When using multiple phases, should the resistor components for the SET pin and VC pin be placed individually on each chip, or should they be connected together and share a single set of components?
2.
How should the remote sense function be connected? I did not find any guidance on multi-phase remote sense connections in the official manual.
3.
What formula is used to calculate the resistance value for the OUTS pin? I have seen some designs with 10Ω or 40Ω. When using remote sense, is an additional resistor required to connect to the power supply end?
  • I have the same question.    Doesn't look too promising though as it has been open for more than a year. 

    1. SET引脚和VC引脚连接在一起共用一组元件,可以参考数据手册中的Figure 12.如下:

    2. 远端检测功能采用开尔文的走线及接法,走差分线保证长度及阻抗接到一个同一个负载点(或者输出电容),确保每个并联的IC Sense端看到的电压一直才能保证均流。
    3. 这个电阻值通常是一个工程经验值,如果您的输出电流很大,那您可以使用稍大一点的电阻。具体是否使用该电阻您可以结合实际情况来定,比如是否有不均流,输出抖动,噪声大等情况。或者您可以以10Ω作为一个起点开始进行测试。