LM26: Trip points mixed up in datasheet (SHA vs. SHP)?

Arnfinn,

Thanks you for bringing this to our attention. Can you explain what you mean by latest measurement results do not confirm this assumption?\

Have you ordered one of the orderables? What is the corresponding trip point measured?

Jalen

Hi Jalen & Ren,

thank you for your responses. The latest measurement results are logging data I got from a system which are not related to a component test. Due to the LM26's precision of +/-3°C and the precision of the additional thermal sensor being used the result cannot be used as a proof, but in the moment the LM26CIM5-SHA tripped, a temperature of 75°C has been reported which raises some doubts that the previous asumption of a typo in the Device Comparison Table.

It is just a formal issue but I need a statement since this value is related to a requirement. Can you please confirm, that the LM26CIM5-SHA with the top mark "TSHA" has a specified trip point of 70°C according to table 11.4 and that the specified trip point values of LM26CIM5-SHA and LM26CIM5-SPA in the Device Comparison Table are not correct?

Thank you very much for your support,

best regards,

Arnfinn

Arnfinn,

Thank you for explaining your test setup/the test condition. I very well understand where the confusion and uncertainty comes from now.

I will test both the SHA and SPA in an oil bath which has a tighter controlled temperature environment. Once I receive the data, I will be able to confirm which table is correct.

Please expect a response with the results from that data early next week.

Enjoy your weekend,

Jalen

Hi Jalen,

in the meantime I searched for older datasheets for the LM26 from National Semiconductor:

March 2005: there is no inconsistency between both tables, therefore it really seems to be just a typo.

Anyway I am looking forward to refer to you measurements. Best regards and thank you for your effort.

Arnfinn