>> I'm going to use a SN754410 IC to drive two small motors and I'm
>> wondering if I need to put flyback diodes in my circuit?

THe SN754410 is a dual H-bridge (quad half-h bridge, actually), pin =20
compatible with the L293D and with somewhat higher current =20
capability.  The complication is that the internal schematic shows =20
diodes in the proper places, but the suggested external schematic also =20
shows additional diodes.  Rumor has it (from Adafruit, IIRC) that the =20
internal diodes are primarily for ESD-like protection and external =20
diodes should be used for flyback purposes.  But like the original =20
poster says, it would be nice to see a definitive written statement to =20
that effect...

BillW

--=20
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