SN74LVTH16244A: Junction Temperature

Amit SH

Prodigy 10 points

Part Number: SN74LVTH16244A
Other Parts Discussed in Thread: SN74LVCH244A

Can I know what is the Junction Temperature of the IC and also θJB and θJC values as only θJA value is provided.

over 4 years ago

0 Sebastian Muriel over 4 years ago

TI__Mastermind 22480 points

Hi Amit,

We currently do not have this data on file, I can submit a request for the thermals which takes about two weeks. Can you please confirm what package you are using?

Regards,

Sebastian

0 Amit SH over 4 years ago in reply to Sebastian Muriel

Prodigy 10 points

DL package

+1 Clemens Ladisch over 4 years ago

Guru 324710 points

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

The SSOP package is not designed for cooling through the board or a heat sink. If the θJA actually is too large for you, then you should use a package with thermal pad, i.e., QFN. The largest QFN buffer has eight channels, so you'd need two (e.g., 2× SN74LVCH244A).

+1 Sebastian Muriel over 4 years ago in reply to Amit SH

TI__Mastermind 22480 points

Hi Amit,

As Clemens stated the maximum junction temperature is 150 °C. I will submit a request for the θJB and θJC values which should take about two weeks. I will post the results here.

Regards,

Sebastian

0 Sebastian Muriel over 4 years ago in reply to Sebastian Muriel

TI__Mastermind 22480 points

Hi Amit,

Below are the thermal results:

	ºC/W
Theta JA-High K (standard datasheet value)	65.1
Theta JC, top (standard datasheet value)	34.3
Theta JB (standard datasheet value)	37.4
Psi JT (standard datasheet value)	12.1
Psi JB (standard datasheet value)	37.0

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SN74LVTH16244A: Junction Temperature