low voltage motor controller

[Marcus]

Any suggestions for a bidirectional motor controller ic - 3 volt dc motors,
up to 200ma or so? Thanks!

Mark

 

[Lostgallifreyan]

"Marcus" <notme@notme.com> wrote in
news:13rs3im5qq61b1c@corp.supernews.com:

Any suggestions for a bidirectional motor controller ic - 3 volt dc
motors, up to 200ma or so? Thanks!

http://www.national.com/pf/LM/LMH6672.html

And probably cheaper and better:

http://www.edn.com/archives/1996/091296/19di6.htm
http://www.intersil.com/data/an/an1111.pdf

You'll need a split rail supply, or to put an op-amp on each motor terminal
and drive them inversely so one sources when the other one sinks.

 

[Brendan Gillatt]

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Marcus wrote:

Any suggestions for a bidirectional motor controller ic - 3 volt dc motors,
up to 200ma or so? Thanks!

The L293D is a TTL H-bridge which will just about work with 3 volts.

- --
Brendan Gillatt | GPG Key: 0xBF6A0D94
brendan {a} brendangillatt (dot) co (dot) uk
http://www.brendangillatt.co.uk
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