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Anything related to transistor arrays, i.e. small-scale integrated circuits containing a limited number (usually 8÷16) of well matched transistors. They are used for applications where component matching is paramount or to simplify the layout of a design where many transistors must be used in the same configuration.
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votes
What IC is good for driving an array of smaller solenoids?
(If you're going to downvote me, I'd appreciate a comment explaining why.)
Try a quad half-H bridge like the L293D or the pin-compatible-but-slightly-more-robust SN754410. You'll need a 3.3 V -> 5 V …