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added note on heat sink
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sai
sai
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If you use fqp27p06, when transistor is ON, you'll have VGS=-12V, ID=15A & RDS will be ~0.07 ohm as per the datasheet (https://www.sparkfun.com/datasheets/Components/General/FQP27P06.pdf)

So, VDS drop will be ~1.05*2V (since you have 2 PMOS in series) = 2.1V. So, if you feed 12V, you'll get only 9.9V at the output. If this is ok, you can use it.

Edit: Also, you'd need a heat sink.

If you use fqp27p06, when transistor is ON, you'll have VGS=-12V, ID=15A & RDS will be ~0.07 ohm as per the datasheet (https://www.sparkfun.com/datasheets/Components/General/FQP27P06.pdf)

So, VDS drop will be ~1.05*2V (since you have 2 PMOS in series) = 2.1V. So, if you feed 12V, you'll get only 9.9V at the output. If this is ok, you can use it.

If you use fqp27p06, when transistor is ON, you'll have VGS=-12V, ID=15A & RDS will be ~0.07 ohm as per the datasheet (https://www.sparkfun.com/datasheets/Components/General/FQP27P06.pdf)

So, VDS drop will be ~1.05*2V (since you have 2 PMOS in series) = 2.1V. So, if you feed 12V, you'll get only 9.9V at the output. If this is ok, you can use it.

Edit: Also, you'd need a heat sink.

Source Link
sai
sai
  • 4.4k
  • 1
  • 3
  • 14

If you use fqp27p06, when transistor is ON, you'll have VGS=-12V, ID=15A & RDS will be ~0.07 ohm as per the datasheet (https://www.sparkfun.com/datasheets/Components/General/FQP27P06.pdf)

So, VDS drop will be ~1.05*2V (since you have 2 PMOS in series) = 2.1V. So, if you feed 12V, you'll get only 9.9V at the output. If this is ok, you can use it.