4-channel high current MOSFET board with high performance driver ICDesigned by Azduino by Spence Konde in United States of America
Notice: This product will be discontinued when current inventory sells out; it is replaced by this upgraded board with optional gate drivers MOSFETs are the go-to technology for controlling large loa…Read More…
Notice: This product will be discontinued when current inventory sells out; it is replaced by this upgraded board with optional gate drivers
MOSFETs are the go-to technology for controlling large loads from a microcontroller. While a directly driven MOSFET is fine for low power and/or low frequency PWM and for simple switching, driving the gate becomes more troublesome when using large MOSFETs with high-speed PWM. The gate of a MOSFET acts like a capacitor electrically, with the state of the transistor depending on the voltage on the gate. This has two consequences relevant to typical light electronics.
Where these issues are a problem, there's a demand for a way to apply a brief high current pulse to the gate of a MOSFET - this is known as a gate driver. These boards have 4 MOSFETs driven by FAN3224 gate drivers, which can provide up to 4A to the gate of the MOSFET, with rise/fall times on the order of 10nS, enabling high speed PWM of large loads. The FAN3224 has a logic threshold of around 1.8v (1.6 typ 2.0 max for logic HIGH), and will apply the full operating voltage to the gate with even a low voltage signal.
The silkscreen on this version of the board doesn't mark which of the pins is ground, and which is power. This is shown below, and will be fixed in a future revision.
Sold as an ASSEMBLED BOARD - with or without screw terminals.
Available with the IRFR3708 MOSFET (30V, up to 60A, gate voltage spec'ed down to 2.8v - however, note that the FAN3224 requires 5!) or the IRLR3110 (100V, up to 42A, 4.5v logic level gate)
Don't need the speed? Versions without a gate driver
Looking for a single FET? Check out these boards based on a single FL3100 driver
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