MITSUBISHI
M54646AP
2-PHASE STEPPER MOTOR DRIVER
DESCRIPTION
The M54646AP is a semiconductor IC to drive bipolar stepper motors by controlling winding current with reference to a designated current level.
PIN CONFIGURATION (TOP VIEW)
FEATURES
q Wide driver voltage range (10 – 40V) q Wide output current control range (20 – 800mA) q Bipolar and constant current control q Built-in flywheel diode q Built-in thermal protection circuit
Comparator input (1) C1 → Comparator reference VR1 → voltage input (1) Output stage VMM1 supply voltage (1) Output terminal (1) MA1 ← Current sensor (1)
1 2 3 4
28 ← C2 27 ← VR2
Comparator input (2)
Comparator reference voltage input (...