SparkFun Forums

[roineust]

i'm thinking of using a CD4066B CMOS Quad Bilateral Switch in an Arduino project. i understand it can handle +-7.5V or +15V as the voltage it is switching (logic is 5V and ~20mAh).
But i can't seem to understand what is the switching current for these 15volts.
Can it switch for example 11V and 900mAh per channel (it has 4 channels)??

Here is the chip datasheet:
http://www.ti.com/lit/ds/symlink/cd4066b.pdf

[lyndon]

No. Use a relay.

[roineust]

Thanks for the reply.

My problem is that there are extremely limited weight and size limitations for switching power in this project. As well there is a need to switch around 10 channels - hence i'm looking for a chip that weight ~1 gram, which can handle several channels, rather than using 10 times a solid state or a mechanical rely, which add up to more than 50 grams and 3 match boxes volume, which is a lot in this case.

Do you know of a small chip that does what the CD4066B CMOS Quad Bilateral Switch does and has the same small chip size - but rather can handle around 1-2 Amps of current?

[lyndon]

Do you have a common ground or power to these 10 channels or are they all isolated? If they're isolated, start looking at high current optocouplers. If there's a common then there are any number of high/low side switching ICs that will work.

[roineust]

They don't have a common ground.

[roineust]

The situation seems to be that all is working well with 10 of the following relays and what i need is a chip that does just the same, but is smaller and weighs less.

Here are the relays model that i want to replace with an IC:
https://www.sparkfun.com/products/100