Other Parts Discussed in Thread: SN74LV244A
Hi,
I would like to know what is the output continuous current limit of the SN74LVT245B to not affect the device reliability (in the recommended operating condition)?
Thank you.
Pier
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Hi,
I would like to know what is the output continuous current limit of the SN74LVT245B to not affect the device reliability (in the recommended operating condition)?
Thank you.
Pier
Hello again,
The recommended maximum values for IOH and IOL are:
IOH = -32 mA
IOL = 64 mA
The datasheet doesn't include any information regarding output continuous current, so I can't guarantee anything on that, however my recommendation would be to limit current to 70mA total through Vcc or Ground to maximize reliability.
There is an application report on this family of products that has a little more detail, but I found no mention of a total current limit. LVT Family Characteristics
Hello Emrys,
Thank you very much for your answer. I saw that the information in the datasheet was limited to Ioh = -32mA and Iol = 64mA, but your recommendation to limit the current to 70mA total through Vcc or Ground is useful. Thank you also for the literature regarding the LVT Family Characteristics.
Best regards,
Pier-Emmanuel
Hi Emrys,
You commented to limit the Icc to 70mA, then where did you quote 70mA? I can't find the value of 70mA and any limitation about Icc in datasheet. I guess that it should be resulted from maximum power dissipation or junction temperature, but I can't find Cpd parameter to calculate power consumption.
Your help will be appreciated.
Best Regards,
Satoshi / Japan Disty