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TPS23372-4低温协商问题,紧急



TI的工程师们:

你们好,我在用TI的TPS2372-4芯片做50WPD时遇到如下问题

常温下工作没有问题,-10℃环境下协商耗时长。

-12℃协商时间45~60秒

-15协商时间70~80秒

附件是电路图,DCDC端接24V/15W PI加热膜,阻抗19欧姆

下图是48V对RTN协商过程波形

Interface _ PAGE01_POWER_EMC.pdf