Max Junction Temperature at Full Performance

Marissa Turley

Prodigy 10 points

Part Number: sn74lvt16245bdl

What is the maximum temperature the junction can operate at full performance without causing damage to the part?

over 3 years ago

0 Clemens Ladisch over 3 years ago

Guru 316690 points

150 °C; see [FAQ] What is the maximum junction temperature (TJMAX) for a device?

0 Marissa Turley over 3 years ago in reply to Clemens Ladisch

Prodigy 10 points

According to that FAQ, that is the absolute maximum junction temperature (as per the "Absolute Maximum ratings" section). I'm looking to obtain the recommended maximum operating junction temperature (i.e. for reliable operation)

0 Emrys Maier over 3 years ago in reply to Marissa Turley

TI__Guru* 97046 points

Hi Marissa,

Logic devices are not rated for a recommended junction temperature - only recommended ambient operating temperature.

0 Marissa Turley over 3 years ago in reply to Emrys Maier

Prodigy 10 points

Okay, would you be able to tell me the part's maximum power dissipation at least?

+1 Emrys Maier over 3 years ago in reply to Marissa Turley

TI__Guru* 97046 points

Hi Marissa,

If you are operating the device across the full ambient temperature range - ie from -40C to +85C, then the maximum power dissipation in the DGG package would be calculated by:

P_max = (150°C - 85°C) / (70 °C/W) = 929 mW

0 Marissa Turley over 3 years ago in reply to Emrys Maier

Prodigy 10 points

Great, thank you for clarifying. Though FYI this package is actually the DL one so it would be:

P_max = (150°C - 85°C) / (63 °C/W) = 1032 mW = 1.032W

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Max Junction Temperature at Full Performance