TDA7297 - temperature. According to datasheet "Top operating temperature" of TDA7297 is in range "0 - 70 st.C". However junction temperature is "-40 to 150 st.C". So it is possible for this amplifier to work in -40 temp. environment?

[wozniakm19]

Reply below. Thanks you.

[Peter BENSCH · Accepted solution]

OK, I'll try to simplify it again:

Operating Temperature aka Operative ambient temperature

Applies when the component is installed in an application circuit and is currently operating.

In this case, the parameters specified in the data sheet under Electrical Characteristics are guaranteed (provided the remaining ambient conditions are also within the permissible range). This is therefore the permissible operating range.

Storage and Junction Temperature:

Are considered to be a statement of what temperature the component will survive, which has absolutely nothing to do with function or with maintaining parameters under that condition.

Specifically:

• TDA7297 
  • Top: 0 to 70 => Electrical Characteristics guaranteed
  • Tj: -40 to 150 => TDA7297 survives in this range

• TDA7376B.
  • Tamb: -40 to 105 => Electrical Characteristics guaranteed
  • Tj: -40 to 150 => TDA7376B survives in this range

If the problem is resolved, please mark this topic as answered by selecting Select as best. This will help other users find that answer faster.

Regards

/Peter