MOSFET Turn Off Time Calculator

✖MOSFET OFF delay time is the time required for the gate source capacitance of a MOSFET to discharge from applied voltage to full gate voltage.ⓘ MOSFET OFF Delay Time [T_d-off]			+10% -10%
✖Fall Time is the time taken for the collector current to reach from 90% of its maximum value to 10% of its initial value in a transistor device.ⓘ Fall Time [T_f]			+10% -10%

✖turn Off time is the sum of storage time (t_s ) and fall time (t_f ) is defined as the Turn-off time of diode in transistor device.ⓘ MOSFET Turn Off Time [T_off]

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MOSFET Turn Off Time Solution

STEP 0: Pre-Calculation Summary

Formula Used

Turn OFF Time = MOSFET OFF Delay Time+Fall Time
T_off = T_d-off+T_f
This formula uses 3 Variables

Variables Used

Turn OFF Time - (Measured in Second) - turn Off time is the sum of storage time (t_s ) and fall time (t_f ) is defined as the Turn-off time of diode in transistor device.
MOSFET OFF Delay Time - (Measured in Second) - MOSFET OFF delay time is the time required for the gate source capacitance of a MOSFET to discharge from applied voltage to full gate voltage.
Fall Time - (Measured in Second) - Fall Time is the time taken for the collector current to reach from 90% of its maximum value to 10% of its initial value in a transistor device.

STEP 1: Convert Input(s) to Base Unit

MOSFET OFF Delay Time: 1.55 Second --> 1.55 Second No Conversion Required
Fall Time: 1.85 Second --> 1.85 Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

T_off = T_d-off+T_f --> 1.55+1.85

Evaluating ... ...

T_off = 3.4

STEP 3: Convert Result to Output's Unit

3.4 Second --> No Conversion Required

FINAL ANSWER

3.4 Second <-- Turn OFF Time

(Calculation completed in 00.004 seconds)

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Credits

Created by Parminder Singh

Chandigarh University (CU), Punjab

Parminder Singh has created this Calculator and 100+ more calculators!

Verified by Rachita C

BMS College Of Engineering (BMSCE), Banglore

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< MOSFET Calculators

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LaTeX Go Input Current Distortion Factor = RMS Supply Current Fundamental Component/RMS Supply Current

Power Loss in MOSFET

LaTeX Go Average Power Loss = Drain Current^2*Drain Source Resistance

MOSFET Turn Off Time

LaTeX Go Turn OFF Time = MOSFET OFF Delay Time+Fall Time

MOSFET Turn ON Time

LaTeX Go Turn ON Time = MOSFET ON Delay Time+Rise Time

MOSFET Turn Off Time Formula

LaTeX Go

Turn OFF Time = MOSFET OFF Delay Time+Fall Time
T_off = T_d-off+T_f

How does a MOSFET turn off?

The MOSFET can be turned off with a negative or zero gate voltage. Due to this, the gate to source voltage decreases from V to Vgsp. Cgs discharges from V to Vgsp gate voltage. The drain current will be zero when the voltage Vgs < Vgst then it is said to have turned off.

How to Calculate MOSFET Turn Off Time?

MOSFET Turn Off Time calculator uses Turn OFF Time = MOSFET OFF Delay Time+Fall Time to calculate the Turn OFF Time, The MOSFET Turn Off Time formula is defined as the time till the MOSFET gets from conducting state to non-conducting state. Turn OFF Time is denoted by T_off symbol.

How to calculate MOSFET Turn Off Time using this online calculator? To use this online calculator for MOSFET Turn Off Time, enter MOSFET OFF Delay Time (T_d-off) & Fall Time (T_f) and hit the calculate button. Here is how the MOSFET Turn Off Time calculation can be explained with given input values -> 3.4 = 1.55+1.85.

FAQ

What is MOSFET Turn Off Time?

The MOSFET Turn Off Time formula is defined as the time till the MOSFET gets from conducting state to non-conducting state and is represented as T_off = T_d-off+T_f or Turn OFF Time = MOSFET OFF Delay Time+Fall Time. MOSFET OFF delay time is the time required for the gate source capacitance of a MOSFET to discharge from applied voltage to full gate voltage & Fall Time is the time taken for the collector current to reach from 90% of its maximum value to 10% of its initial value in a transistor device.

How to calculate MOSFET Turn Off Time?

The MOSFET Turn Off Time formula is defined as the time till the MOSFET gets from conducting state to non-conducting state is calculated using Turn OFF Time = MOSFET OFF Delay Time+Fall Time. To calculate MOSFET Turn Off Time, you need MOSFET OFF Delay Time (T_d-off) & Fall Time (T_f). With our tool, you need to enter the respective value for MOSFET OFF Delay Time & Fall Time and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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