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LM324: CS2957866: LM324DR

WEI XIAO
Prodigy 20 points
Part Number: LM324

Tool/software:

Adverse phenomenon: PCBA test reports fault 16: AO current signal abnormality. After replacing 3908A000/LM324, the test is OK. After replacing the removed 3908A000/LM324 with an OK board, the defect still exists. The fixture measurement on the defective board found that the AO current range of 0mA corresponds to 0.11/0.14V, and the standard requirement value cannot exceed 0.01V

Defective quantity: 4/22544=177DPPM

Application products: Inverter

  • 0
    TI__Guru* 76461 points

    Hi Wei, 

    WEI XIAO said:
    The fixture measurement on the defective board found that the AO current range of 0mA corresponds to 0.11/0.14V, and the standard requirement value cannot exceed 0.01V

    You have to show me the schematic how 0.11/0.14V signal is generated. Is this V-to-I converter? I need more information. I do not know what 0.11/0.14 mean based on a piece of requirement. 

    If you prefer to keep the conversion in private, please post "friendship" request over E2E and we can discuss the issues in the E2E private messaging system or I can provide you with our internal contact information once the communication is established. 

    Best,

    Raymond