Other Parts Discussed in Thread: TPS65983B 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。 https://e2e.ti.com/support/interface-group/interface/f/interface-forum/614133/tps65983b-tps65983b_configuration_utility-with-ti-pd-fw-v4-39 器件型号: TPS6…
Other Parts Discussed in Thread: TPS23753A 最近采用TI电源芯片TPS23753A为PD设备,参照官网demo板电路,搞一个5V1.6A POE电源板,PSE采用的是TP LINK TL-SF1005P交换机,插上网线无电压输出,测量VDD_VSS在2V-18V之间跳动,波形如下图所示,接上负载依旧无输出。采用外部适配器18V,输出5v电压;原理图参考附件,请TI或相关技术人员帮忙分析一下,谢谢。
您能否提供PD analyzer logs,以便我更好地了解何时出现此类问题?
为便于您自己参考,有一份应用说明深入介绍了如何使用EC将修补程序捆绑包加载到PD控制器。 我已经把它链接到下面:
Common TPS25751 Use Cases and Setting Using EC (Rev. A)
Part Number: TCA9617B
HI TI team:
In my application, TCA9617 is used as the I2C level converter(3.3V->1.8V), and the circuit diagram is as follows:
B side: Controller
A side: Target
During debugging, it was found that I2C communication is unstable…