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Is this charging current high enough to damage the MCU pin? In other words, drive past that value. By dataaheet “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

MCU pins are usually inputs on reset, and this could cause the gate to float irfzz14, perhaps turning the device on, until the program starts running. IR non logic level vs.

IRFZ14 MOSFET. Datasheet pdf. Equivalent

Therefore, Raspberry Pi’s 3. I have a few datashee, however. Mark 1, 7 36 More discussion on this blog entry. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.


I understand that the gate of the MOSFET behaves like a capacitor, and therefore draws some current while “charging”, and then none thereafter. What number am I looking for to determine whether 3.

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It’s not cheap 0. I’ve generally done the opposite: You only pay power to switch a MOSFET, not to keep it on, which reduces power dissipation in both the transistor and the part that drives it, especially if switching is infrequent. Email Required, but never shown. Any lower than that, and you have no guarantees whatsoever of device behavior beyond the uA current of the Vgs threshold.

There are some with logic-level inputs, though. If the VGS threshold is like 1. Don’t drive this directly from an MCU. The FQP30N06L is designed to be driven from voltages of at least 5V, which is the minimum voltage that they specify on-resistance. The downside is that a MOSFET doesn’t pull a constant amount of current across the entire edge, since it looks like a resistor; this slows down switching a capacitive load.

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krfz14 By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. But you really need a gate driving circuit from 3.

IRFZ12 datasheet & applicatoin notes – Datasheet Archive

Hi JasonS, forgive my ignorance. I’d put two resistors itfz14 the circuit: Sign up using Email and Password. I don’t see in the specifications where 5V is given as a minimum.


As far as protection It’s like just passing above the threshold voltage on a BJT. Home Questions Tags Users Unanswered. The data sheets can be misleading, they often give the gate voltage for mA current on the front page, and you find that they need 12V for 5A, say.

Instead, look at the datasheets and the rated on-resistance Rdson, which is specified at a certain gate-source voltage for each part. Some devices may have quite a bit higher Rdson at 3. The reason they include it at all is that the relative behavior current goes up with increasing gate voltage and increasing drain voltage is universal Is this “saturation” achieved by simply providing a high enough voltage on the base that the MOSFET is completely “on”?

More seriously, just because 3. Note that “logic level” does not seem to be an exactly standardized term, and it won’t necessarily show up as a parameter in the parametric search at the vendor sites, nor will it necessarily show up in the data sheet.

Will this be sufficient?