参数资料
| 型号： | MC3PHACVPE |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 7/36页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR CONTROLLER 28-DIP |
| 标准包装： | 13 |
| 应用： | AC 电机控制器，3 相 |
| 输出数： | 1 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 28-DIP（0.600"，15.24mm） |
| 供应商设备封装： | 28-PDIP |
| 包装： | 管件 |
| 产品目录页面： | 808 (CN2011-ZH PDF) |
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Pin Descriptions
Table 2. MC3PHAC Pin Descriptions (Sheet 2 of 2)
Pin
Number
17
18
19
20
21
22
23
24
25
26
27
28
Pin Name
RETRY_TxD
RBRAKE
DT_FAULTOUT
VBOOST_MODE
V DD
V SS
FWD
START
MUX_IN
SPEED
ACCEL
DC_BUS
Pin Function
In standalone mode, this pin is an output that drives low to indicate the
parameter mux input pin is reading an analog voltage to specify the time
to wait after a fault before re-enabling the PWM outputs. In PC master
software mode, this pin is an output that transmits UART serial data.
Output which is driven to a logic high whenever the voltage on the dc bus
input pin exceeds a preset level, indicating a high bus voltage. This
signal is intended to connect a resistor across the dc bus capacitor to
prevent excess capacitor voltage.
In standalone mode, this pin is an output which drives low to indicate the
parameter mux input pin is reading an analog voltage to specify the
dead-time between the on states of the top and bottom PWM signals for
a given motor phase. In PC master software mode, this pin is an output
which goes low whenever a fault condition occurs.
At startup, this input is sampled to determine whether to enter standalone
mode (logic high) or PC master software mode (logic low). In
standalone mode, this pin is also used as an output that drives low to
indicate the parameter mux input pin is reading an analog voltage to
specify the amount of voltage boost to apply to the motor.
+5-volt digital power supply to the MC3PHAC
Digital power supply ground return for the MC3PHAC
Input which is sampled to determine whether the motor should rotate in
the forward or reverse direction
Input which is sampled to determine whether the motor should be
running.
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 several voltage levels that specify MC3PHAC
operating parameters.
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.
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
acceleration of the motor.
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 proportional to the dc bus
voltage.
1. Correct timing of the MC3PHAC is based on a 4.00 MHz crystal or ceramic resonator. Follow the crystal/resonator
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.
MC3PHAC Monolithic Intelligent Motor Controller, Rev. 2
Freescale Semiconductor
7
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