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Topic: SMD MOSFET to power down my SMD H-Bridge (Read 5 times) previous topic - next topic

dc42

#45
Jul 09, 2013, 09:24 am Last Edit: Jul 09, 2013, 09:29 am by dc42 Reason: 1
Sorry, I've never worked with OLED displays. However, as its current consumption is so high, you can't safely drive it from an Arduino pin. Use another P-channel mosfet, although this time you can switch it directly from the Arduino instead of using an additional transistor for level shifting.

PS - don't from the data you posted, looks like the oled display is a 3.3V device, So you'll be switching 3.3V to it, not 5V. The I2C pullup resistors should be connected to the Vcc pin of the display.
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