TPS3307-18: TPS3307 Min/Max Delay time in full temperature range

Hirotsugu Kobayashi

Mastermind 8485 points

Part Number: TPS3307-18

Hi, all.

Td of tps3307 is prescribed with Min140~Max280 ms by the 25 degree.

How many is Td when using the full temperature range?

Do you have a temperature dependency chart of Td?

Best Regards,

Kobayashi

over 7 years ago

0 Ryan Eslinger over 7 years ago

TI__Guru 55940 points

Please excuse a delay due to the US Holidays.

Very Respectfully,
Ryan

0 Ryan Eslinger over 7 years ago in reply to Ryan Eslinger

TI__Guru 55940 points

Hi Kobayashi,

There are several environmental factors that could affect timing. These factors include temperature, capacitance on /RESET, and overdrive (the higher Vdd is above the threshold, the faster /RESET will change states). For testing purposes we have selected the conditions stated.

I am unaware of any curves outside of what is currently provided in the datasheet.

Very Respectfully,
Ryan

0 Hirotsugu Kobayashi over 7 years ago in reply to Ryan Eslinger

Mastermind 8485 points

Hi Ryan,

Tank you for your answer.

But our customer want to any data which can confirm the temperetare denedency of Td.

Could you estimate how long do Td change at full temperature range?

Best Regards,

Kobayashi

0 Ryan Eslinger over 7 years ago in reply to Hirotsugu Kobayashi

TI__Guru 55940 points

Hi Kobayashi,

Please allow some time for me to order devices and take bench measurements for you.

Very Respectfully,

Ryan

0 Ryan Eslinger over 7 years ago in reply to Ryan Eslinger

TI__Guru 55940 points

Hi Kobayashi,

Thank you for your patience. We drifted 1 unit over temperature. Here are the results:

-40C td = 255ms
-10C td = 251ms
25C td = 253ms
55C td = 259ms
85C td = 270ms

Very Respectfully,
Ryan

Power management

Power management forum

TPS3307-18: TPS3307 Min/Max Delay time in full temperature range