MITSUBISHI CONTROL / DRIVER IC M54672SP 2-PHASE STEPPER MOTOR DRIVER DESCRIPTION The M54672SP is a semiconductor IC to drive a stepper motor directly by controlling the coil current with the constant current method.
PIN CONFIGURATION (TOP VIEW) Standby input (1) Comparator input (1) Comparator reference input (1) St1 1 C1 2 VR1 3 32 St2 31 C2 Standby input (2) Comparator input (2) Comparator reference 30 VR2 input (2) power 29 Vbs2 Bootstrap supply (2) Output power 28 VMM2 supply (2) FEATURES q Wide output current control range (20 – 1200mA) q Bipolar and constant current drive q Built in a thermal shutdown circuit q Built in flywheel diodes Bootstrap power supply (1) Vbs1 4 Output...

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