| Electronics > Projects, Designs, and Technical Stuff |
| High side driver (7V-9V) with 3.3V microcontroller pin to switch it questions... |
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| poorchava:
--- Quote from: Zero999 on July 27, 2019, 09:57:33 pm ---Lots of plain MOSFET driver ICs can do this. My favourite is the TC4420 or TC4429, but there are many options. https://ww1.microchip.com/downloads/en/DeviceDoc/21419D.pdf --- End quote --- +1, I use those a lot too. Also, there are MCP1404, which are 4 Amps peak (TC are 1.5A), but TC442x parts are much more tolerant to various kinds of abuse. There is also MCP1415 and 1416 if u need only one signal. That's what I like about Microchip. They make lots of simple, useful chips that are cheap, available and just get the job done. Too bad they really suck at designing microcontrollers though. Nice "trick" with TC4428 and similar complimentary drivers is that you can connect inputs together, feed them with any random 50% pwm from a microcontroller , hook up a trafo with cap in series to it and there you have a floating power supply. Perfect for floating gate drives and similar stuff. |
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