TPS62870-Q1: Need for the information described in description

Nivethitha Harikrishnan

Prodigy 30 points

Part Number: TPS62870-Q1

Please share the following details of the IC's Internal MOSFET.

Raise time and fall time of switching frequency.
Raise time and fall time of dead time.
Internal driver current loss.

over 1 year ago

0 Excel Regidor over 1 year ago

TI__Mastermind 35591 points

Hello Nivethitha,

Thanks for reaching out to us.

May I know the reason why you need the items highlighted above? The Webench tool can be used to determine the IC's power losses and Tj. Besides, those electrical parameters are confidential in nature.

https://webench.ti.com/power-designer/

Best regards,

Excel

0 Nivethitha Harikrishnan over 1 year ago

Prodigy 30 points

This is required to calculate the internal switch high side and low side power loss . Since we are working on worst case analysis for this particular IC.

Dead time loss and internal driver loss is also needed to calculate the worst case calculation of power loss.

0 Excel Regidor over 1 year ago in reply to Nivethitha Harikrishnan

TI__Mastermind 35591 points

Hello Nivethitha,

Please refer to the attached file where you can use to calculate the IC power losses using the Webench tool. Let me know if this is enough for your worst-case analysis.

5584.IC_Pd worst-case sample calculation.pptx

Best regards,

Excel