MAX9947 high temperature

Question

Dears 
 My customer use MAX9947 to replace SN65HVD62, Customer don't change the peripheral circuits. 
 When customer put the MAX9947 board into the 70℃ environment, it can't work. But competitor SN65HVD62 can operate well. 
 Can you check it and give some advise ?

GenevaCooper · Accepted Answer

Hi, Thank you for your inquiry. Only Maxim ATE products are supported on EngineerZone at this time. Over the next several months, you will see more Maxim products being supported in EngineerZone. Please visit one of the technical support pages on our newly integrated website below for assistance with Maxim Integrated products. 
 EN - https://www.analog.com/en/support/technical-support.html# CN - https://support.analog.com/zh-CN/technical-support/ JP - https://support.analog.com/ja-JP/technical-support/)

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MAX9947 high temperature