UC2844: could you tell the reason why there is a big difference of psi_JT between SOIC and PDIP?

Noriyuki Takahashi

Genius 10930 points

Part Number: UC2844

Tool/software:

Hi team,

As you can see, there is a big gap of psi_JT betwen SOIC and PDIP as below. Could you tell the reason?

Regards,

Noriyuki Takahashi

6 months ago

0 Hong Huang 6 months ago

TI__Guru 73085 points

Hi,

The latest datasheet shows the below. Please use the latest datasheet from ti.com.

0 Noriyuki Takahashi 6 months ago in reply to Hong Huang

TI__Genius 10930 points

Hong,

Thanks, but they want understand the techinical reason why psi_JT value of SOIC is largely different with PDIP.

Could you tell the reason in term of this?

Regards,

Noriyuki Takahashi

0 Hong Huang 6 months ago in reply to Noriyuki Takahashi

TI__Guru 73085 points

Hi,

The latest datasheet does not have that large difference so it is likely the old datasheet might have that as an error. Please use the latest datasheet to your reference.

Power management

Power management forum

UC2844: could you tell the reason why there is a big difference of psi_JT between SOIC and PDIP?