Part Number |
M54677FP |
Manufacturers |
Mitsubishi |
Logo |
|
Description |
2-PHASE STEPPER MOTOR DRIVER |
Datasheet |
M54677FP Datasheet (PDF) |
MITSUBISHI
M54677FP
2-PHASE STEPPER MOTOR DRIVER
DESCRIPTION
The M54677FP 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)
St1 C1 Vref1 1 2 3 4 5 6 7 36 35 34 33 32 31 30 St2 C2 Vref2 VM21 MA2 E2
FEATURES
q Wide output current control range (20 – 1000mA) q Bipolar and constant current q Built in a thermal shutdown circuit q Built in flywheel diodes
VM11 MA1 E1
M54677FP
8
29 28 27 26 25 24 23 22 21 20 19 N.C MB2 VM22 Vcc2 T2 Ph2 GND
APPLICATION
Office automation equipment such as printer, FDD, HDD, and FAX
9 GND 10 11
FUNCTION
The M54677FP can drive a stepper motor by the 2-phase bipolar method and also control the coil current. Furthermore, it controls the direction of the coil current by Ph input and the coil current value by Vref pin. Because two control circuits are built in this IC, a stepper motor can be driven with a single IC by the 2-pha.