I use TI TPS 23881 chips for POE power supply, can't give PD equipment power supply!!!! Figure 1 is the use of the oscilloscope measurement figure 2 (schematic) 33 pin (DRAIN6) waveform figure. Hope to get help.Thank.
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I use TI TPS 23881 chips for POE power supply, can't give PD equipment power supply!!!! Figure 1 is the use of the oscilloscope measurement figure 2 (schematic) 33 pin (DRAIN6) waveform figure. Hope to get help.Thank.
HI
我这边也没有评估板可以测试这个波形。但是对应gate驱动的MOS是导通的,DRAIN6的波形即通过MOS, sense电阻接到GND. 所以这个电压应该是一个较低的恒定电压。
或者你可以在美国E2E上要一下这个波形: https://e2e.ti.com/ 美国那边对应项目组工程师应该是有板子可以协助到你。
HI
我觉得不应该是这样,不过如上,建议你直接找美国E2E要一下。
HI
见论坛: https://e2e.ti.com/