SN74LVC2G02-EP: Thermal Resistance

Jejomar Ildefonso

Expert 8590 points

Part Number: SN74LVC2G02-EP
Other Parts Discussed in Thread: SN74LVC07A-EP,

Hi Team,

Can we ask for the junction-to-case and junction-to-board thermal resistance value of SN74LVC2G02-EP and SN74LVC07A-EP?

Thanks in advance!

Kind Regards,

Jejomar

over 1 year ago

0 Owen Westfall over 1 year ago

TI__Expert 4531 points

Hi Jejomar,

What are the OPN's the customer is using

Regards,

Owen

0 Jejomar Ildefonso over 1 year ago in reply to Owen Westfall

TI__Expert 8590 points

Hi Owen,

My apologies. OPNs in subject are the following:

SN74LVC2G02MDCUREP

SN74LVC07AMPWREP

Kind Regards,

Jejomar

0 Owen Westfall over 1 year ago in reply to Jejomar Ildefonso

TI__Expert 4531 points

Hi Jejomar

These numbers aren't in our system I'm going to go ahead and request them, but given it's end of year and holiday season I imagine the wait time for getting these back will be extended likely 3-4 weeks.

Regards,

Owen

+1 Owen Westfall over 1 year ago in reply to Owen Westfall

TI__Expert 4531 points

Hi Jejomar,

Turns out SN74LVC07AMPWREP was in the system under a different name so that is below

Result- Theta JA-High K (standard datasheet value)	145.2
Result-Theta JC, top (standard datasheet value)	72.8
Result-Theta JB (standard datasheet value)	87.0
Result- Psi JT (standard datasheet value)	18.5
Result- Psi JB (standard datasheet value)	86.5
Result-Theta JC, bottom (standard datasheet value)	n/a

But SN74LVC2G02MDCUREP will need to be requested

Regards,

Owen

0 Jejomar Ildefonso over 1 year ago in reply to Owen Westfall

TI__Expert 8590 points

Hi Owen,

I understand. Thanks for the initial information for SN74LVC07AMPWREP.

We'll pass this on to the customer and manage their expectations about the thermal information for SN74LVC2G02MDCUREP.

Kind Regards,

Jejomar

0 Jejomar Ildefonso over 1 year ago in reply to Jejomar Ildefonso

TI__Expert 8590 points

Hi Owen,

Just a minor follow-up query for SN74LVC07AMPWREP. The datasheet doesn't show information about its maximum junction temperature. But it seems that this FAQ shows that the device would also have a max junction temperature of 150°C. However, it's part of the absolute max ratings. Our customer wants to know the junction temperature range at which the device would remain functional and within spec. Typically it's 125°C for most devices. Would this be the case for SN74LVC07AMPWREP as well?

Kind Regards,

Jejomar

+1 Clemens Ladisch over 1 year ago in reply to Jejomar Ildefonso

Guru 243180 points

The recommended operating conditions already allow an ambient temperature of 125 °C, so the junction temperature must necessarily be higher.

In the worst case, the junction temperature would be 125 °C + 113 °C/W × (24 mA × 0.55 V) ≈ 126.5 °C.

0 Jejomar Ildefonso over 1 year ago in reply to Clemens Ladisch

TI__Expert 8590 points

Hi Clemens,

Got it! Many thanks for your help!

Hi Owen,

The only awaiting request for now is the thermal information for SN74LVC2G02MDCUREP. We've already told the customer about the expected timeline. Thank you!

Kind Regards,

Jejomar

+1 Owen Westfall over 1 year ago in reply to Jejomar Ildefonso

TI__Expert 4531 points

Hi Jejomar,

The request finished ahead of schedule the results for SN74LVC2G02MDCUREP are as follows

Result- Theta JA-High K (standard datasheet value):	201.5
Result-Theta JC, top (standard datasheet value):	91.9
Result-Theta JB (standard datasheet value):	122.6
Result- Psi JT (standard datasheet value):	31.8
Result- Psi JB (standard datasheet value):	122.1
Result-Theta JC, bottom (standard datasheet value):	n/a

Regards,

Owen

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SN74LVC2G02-EP: Thermal Resistance