CSD87330Q3D: which time does the rise time indicate?

Edwin Zang

Expert 6425 points

Part Number: CSD87330Q3D

hello team,

in MOSFET datasheet, I saw turn on delay time and rise time, can you tell me which time is the rise time?

edwin.

over 5 years ago

0 Ankan De over 5 years ago

TI__Prodigy 160 points

Hi Edwin,

The turn on delay time is the time lag between PWM (low to high) signal to Switch-node (high to low) voltage. Basically, after the pwm signal has been asserted low to high, the device takes some time to start switching. The time lag between the rising edge of PWM to the falling edge of the voltage across mosfet is turn on delay. This is not the rise time.

The rise time (tr) parameter mentioned in the datasheet is the actual rise time of the mosfet.

Hope this helps.

Thanks for posting,

Ankan De

0 Ankan De over 5 years ago in reply to Ankan De

TI__Prodigy 160 points

Hi Edwin,

A more detailed explanation is mentioned in the following blogpost:

e2e.ti.com/.../understanding-mosfet-data-sheets-part-5-switching-parameters

Thanks,
Ankan

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CSD87330Q3D: which time does the rise time indicate?