MITSUBISHI CONTROL / DRIVER IC
M54670P
2-PHASE STEPPER MOTOR DRIVER
DESCRIPTION
The M54670P is a semiconductor IC to drive a bipolar stepper motor directly by controlling the coil current with the constant current method.
PIN CONFIGURATION (TOP VIEW)
Triangular wave
CT 1
32 VCC 31 VR(B)
Circuit power supply
FEATURES
q Wide operating
voltage range (10 – 35V) q Wide output current control range (20 – 800mA) q Bipolar and constant current drive q Built in flywheel q Current level can be changed by steps or continuously.
q Built in a thermal shutdown circuit
Comparator reference input(A) VR(A) 2 Output current direction switching(A) Ph(A) 3 Output power supply(A) VMM1(A) 4 Output(A)
C...