Short Circuit Current of MOSFET Calculator

✖Transconductance is defined as the ratio of the change in the output current to the change in the input voltage, with the gate-source voltage held constant.ⓘ Transconductance [g_m]			+10% -10%
✖Gate-source voltage is a critical parameter that affects the operation of an FET, and it is often used to control the device's behavior.ⓘ Gate-Source Voltage [V_gs]			+10% -10%

✖Output current is the electric current that flows from a device output terminal. It is the amount of electrical charge passing through the output per unit of time.ⓘ Short Circuit Current of MOSFET [I_out]

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Short Circuit Current of MOSFET Solution

STEP 0: Pre-Calculation Summary

Formula Used

Output Current = Transconductance*Gate-Source Voltage
I_out = g_m*V_gs
This formula uses 3 Variables

Variables Used

Output Current - (Measured in Ampere) - Output current is the electric current that flows from a device output terminal. It is the amount of electrical charge passing through the output per unit of time.
Transconductance - (Measured in Siemens) - Transconductance is defined as the ratio of the change in the output current to the change in the input voltage, with the gate-source voltage held constant.
Gate-Source Voltage - (Measured in Volt) - Gate-source voltage is a critical parameter that affects the operation of an FET, and it is often used to control the device's behavior.

STEP 1: Convert Input(s) to Base Unit

Transconductance: 0.5 Millisiemens --> 0.0005 Siemens (Check conversion here)
Gate-Source Voltage: 4 Volt --> 4 Volt No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

I_out = g_m*V_gs --> 0.0005*4

Evaluating ... ...

I_out = 0.002

STEP 3: Convert Result to Output's Unit

0.002 Ampere --> No Conversion Required

FINAL ANSWER

0.002 Ampere <-- Output Current

(Calculation completed in 00.007 seconds)

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Credits

Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

Payal Priya has created this Calculator and 600+ more calculators!

Verified by Anshika Arya

National Institute Of Technology (NIT), Hamirpur

Anshika Arya has verified this Calculator and 2500+ more calculators!

< Current Calculators

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First Drain Current of MOSFET on Large-Signal Operation given Overdrive Voltage

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Drain Current of MOSFET on Large-Signal Operation given Overdrive Voltage

LaTeX Go Drain Current = (DC Bias Current/Overdrive Voltage)*(Differential Input Signal/2)

Short Circuit Current of MOSFET Formula

LaTeX Go

Output Current = Transconductance*Gate-Source Voltage
I_out = g_m*V_gs

How do you protect a MOSFET from a short circuit?

The voltage across the internal resistance can be sensed using a simple comparator or even a transistor, which switches on at a voltage of around 0.5V. You can thus avoid the use of a sense resistor (shunt), which usually produces an undesirable extra voltage drop. The comparator can be monitored by a microcontroller.

How to Calculate Short Circuit Current of MOSFET?

Short Circuit Current of MOSFET calculator uses Output Current = Transconductance*Gate-Source Voltage to calculate the Output Current, The Short circuit current of MOSFET is the current when the maximum operating voltage of a MOSFET is exceeded, it goes into Avalanche breakdown. If the energy contained in the transient over-voltage is above the rated Avalanche energy level, then the MOSFET will fail. The device fails short circuit, initially, with no externally visible signs. Output Current is denoted by I_out symbol.

How to calculate Short Circuit Current of MOSFET using this online calculator? To use this online calculator for Short Circuit Current of MOSFET, enter Transconductance (g_m) & Gate-Source Voltage (V_gs) and hit the calculate button. Here is how the Short Circuit Current of MOSFET calculation can be explained with given input values -> 0.002 = 0.0005*4.

FAQ

What is Short Circuit Current of MOSFET?

The Short circuit current of MOSFET is the current when the maximum operating voltage of a MOSFET is exceeded, it goes into Avalanche breakdown. If the energy contained in the transient over-voltage is above the rated Avalanche energy level, then the MOSFET will fail. The device fails short circuit, initially, with no externally visible signs and is represented as I_out = g_m*V_gs or Output Current = Transconductance*Gate-Source Voltage. Transconductance is defined as the ratio of the change in the output current to the change in the input voltage, with the gate-source voltage held constant & Gate-source voltage is a critical parameter that affects the operation of an FET, and it is often used to control the device's behavior.

How to calculate Short Circuit Current of MOSFET?

The Short circuit current of MOSFET is the current when the maximum operating voltage of a MOSFET is exceeded, it goes into Avalanche breakdown. If the energy contained in the transient over-voltage is above the rated Avalanche energy level, then the MOSFET will fail. The device fails short circuit, initially, with no externally visible signs is calculated using Output Current = Transconductance*Gate-Source Voltage. To calculate Short Circuit Current of MOSFET, you need Transconductance (g_m) & Gate-Source Voltage (V_gs). With our tool, you need to enter the respective value for Transconductance & Gate-Source Voltage 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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