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Thread: Cheap Motor drivers [OT]
face BY : Josef Hanzal email (remove spam text)

< snip >

> If someone knows of a low drop (Rds) MOSFET h-bridge, please let me know.

How about Thomson's L6203:

Supply voltage 48 V max
Current 3 A max
Rds(on) 0.3 ohm typ. (0.55 max)
Inputs TTL compatible
Operating frequency up to 100 kHz
Specified reverse source-drain diode
Short circuit protected
Thermal shutdown
Multiwatt 11 package
Except I don't know if you consider it still cheap. Here in Czech in costs
about $4 in single quantities.

Primary area of application is in driving bipolar stepper motors, but will
certainly suit for DC motors as well. For lower currents see L6202 and L6201.


Josef Hanzal

See also: www.piclist.com/techref/io/motors.htm?key=motor
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