MC3PHAC Motorola, MC3PHAC Datasheet - Page 9

• Manufacturer Part Number: MC3PHAC
• Description: 3-Phase AC Motor Controller
• Manufacturer: Motorola

MOTOROLA
Number
1. Correct timing of the MC3PHAC is based on a 4.00 MHz crystal or ceramic resonator. Follow the crystal/resonator
Pin
manufacturer’s recommendations, as the crystal/resonator parameters determine the external component values required
for maximum stability and reliable starting. The load capacitance values used in the oscillator circuit design should include
all stray capacitances.
26
27
28
Pin Name
DC_BUS
SPEED
ACCEL
Table 2. MC3PHAC Pin Descriptions (Sheet 3 of 3)
Freescale Semiconductor, Inc.
For More Information On This Product,
In standalone mode, during initialization this pin is an output that is used
In standalone mode, during initialization this pin is an output that is used
In standalone mode, during initialization this pin is an output that is used
to determine PWM polarity and base frequency. Otherwise, it is an
analog input used to read a voltage level corresponding to the desired
steady-state speed of the motor.
to determine PWM polarity and base frequency. Otherwise, it is an
analog input used to read a voltage level corresponding to the desired
acceleration of the motor.
to determine PWM polarity and base frequency. Otherwise, it is an
analog input used to read a voltage level proportional to the dc bus
voltage.
3-Phase AC Motor Controller
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Pin Function
Pin Descriptions
MC3PHAC/D
9