MITSUBISHI CONTROL / DRIVER IC
M54678FP
2-PHASE STEPPER MOTOR DRIVER
DESCRIPTION
The M54678FP is a semiconductor integrated circuit designed for stepper motor driver used to printer, PPC and facsimile.
PIN CONFIGURATION (TOP VIEW)
P.
GND Out1 Out1B Rs1 S1 Vm 1 2 3 4 5 6 7 36 35 34 33 32 31 30 29 28 GND 27 26 25 24 23 22 21 20 19 N.
C N.
C Ph2 En2 Vref2 Fref N.
C Out2 Out2B Rs2 S2 Vm
FEATURES
q Wide supply
voltage range (10 – 35V) q Output current is controlled by PWM operation q Few external components (This IC can be operated with 1 capacitor and 2 resistances) q
Voltage stabilizer circuit (Regout = 3.
5V) q Thermal protection circuit q Flywheel diode
APPLICATION
Printers, PPC, facsimile
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