International Rectifier / Infineon IRLML MOSFET are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for International. IRLML Infineon / IR MOSFET datasheet, inventory, & pricing. IRLML datasheet, IRLML pdf, IRLML data sheet, datasheet, data sheet, pdf, International Rectifier, 30V Single N-Channel HEXFET Power.
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The FET can’t get rid of that heat but will absorb it in its thermal mass instead, heating up a little. My thinking is this should lead to current peaks that easily exceed the driver’s 1A maximum peak current and damage the chip, but the evaluation board demonstrates that this is not the case, what am I missing?
On page 4, bottom right, there’s a graph showing the maximum safe operating area SOA of the device. That’s W dissipated in a SOT device. So if you just short its output to ground, it will die. In fact, the datasheet for the MIC states: The current might be internally limited. Unimportant 1 6. Mahendra Gunawardena 1, 9 Sign up using Facebook. At t 0 any capacitor will act like a short circuit. MOSFETs like the ones in the MIC’s output stage can handle large current pulses for a short time by simply absorbing the heat generated by the pulse in their thermal mass.
Email Required, but never shown. If the pulse is short enough, the FET will not heat up much and therefore survive just fine.
Home Questions Tags Users Unanswered. Sign up using Email and Password. Owing to the fact that this gate driver features adaptive dead-time and thus monitors the gate of the MOSFET to determine when it irlmp2803 fully turned off, a gate resistor prevents proper sensing of the actual gate.
DATASHEET IRLMLTRPBF – International Rectifier MOSFET P Micro3 | eBay
Without a gate resistor the only thing limiting the current is the gate driver’s output resistance, which is supposedly low, it would not be a good driver otherwise. I would place a 0 ohm resistor there for future experimentation.
As long as that doesn’t cause it to get hotter than its maximum junction temperature, no harm will be done.
30V Single N-Channel HEXFET Power MOSFET In A Micro 3 Package