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参数资料
| 型号： | MC3PHACVDW |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 12/36页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR CONTROLLER 28-SOIC |
| 标准包装： | 26 |
| 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： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC W |
| 包装： | 管件 |
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Features
illustrated in Figure 6 . To compensate for this voltage loss, the voltage profile is boosted over the normal
voltage curve in Figure 5 , so that the magnetizing current remains constant over the speed range.
100%
VOLTAGE BOOST
CO
MP
E
NS
A
TIO
NF
O
RS
TA
T
OR
L
OS
SE
S
FREQUENCY
BASE FREQUENCY
Figure 5. Voltage Profiling, Including Voltage Boost
PARASITICS
X 1
R 1
X 2
R 2
MAGNETIZING CURRENT
(TRY TO KEEP CONSTANT)
X M
TORQUE CURRENT
R2 (1 –s)
s
Figure 6. AC Motor Single Phase Model Showing Parasitic Stator Impedances
The MC3PHAC allows the voltage boost to be specified as a percentage of full voltage at 0 Hz, as shown
in Figure 5 . In standalone mode, voltage boost is specified during the initialization phase by supplying
a voltage to the MUX_IN pin while the VBOOST_MODE pin is being driven low. Refer to the graph in
Figure 11 for the resistance value versus voltage boost. Figure 11 assumes a 6.8 k ? pullup resistor. In
this way, voltage boost can be specified from 0 to 40 percent, with a scaling factor of 8 percent per volt.
In PC master software mode, the voltage boost can be specified from 0 to 100 percent and can be
changed at anytime.
By using the voltage boost value, and the specified base frequency, the MC3PHAC has all the information
required to generate a voltage profile automatically based on the generated waveform frequency. An
additional feature exists in PC master software mode whereby this voltage value can be overridden and
controlled in real time. Specifying a voltage lower than the normal volts-per-hertz profile permits a softer
torque response in certain ergonomic situations. It also allows for load power factor control and higher
operating efficiencies with high inertia loads or other loads where instantaneous changes in torque
demand are not permitted. Details of this feature are discussed in the PC Master Software Operation with
PLL Clock Generation — The OSC1 pin signal is used as a reference clock for an internal PLL clocking
circuit, which is used to drive the internal clocks of the MC3PHAC. This provides excellent protection
against noise spikes that may occur on the OSC1 pin. In a clocking circuit that does not incorporate a PLL,
a noise spike on the clock input can create a clock edge, which violates the setup times of the clocking
MC3PHAC Monolithic Intelligent Motor Controller, Rev. 2
12
Freescale Semiconductor
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MC3PHACVDWE | 功能描述:马达/运动/点火控制器和驱动器 8BIT MCU 8K FLASH OTP RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| MC3PHACVFA | 制造商:Freescale Semiconductor 功能描述:MCU 8BIT HC08 CISC 8KB FLASH 5V 32LQFP - Trays 制造商:Rochester Electronics LLC 功能描述:8BIT MCU, 8K FLASH OTP - Bulk |
| MC3PHACVFAE | 功能描述:马达/运动/点火控制器和驱动器 8B MCU 8K FLASH OTP RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| MC3PHACVP | 制造商:Freescale Semiconductor 功能描述:MCU 8BIT HC08 CISC 8KB FLASH 5V 28PDIP - Rail/Tube 制造商:Freescale Semiconductor 功能描述:Controller IC |
| MC3PHACVPE | 功能描述:马达/运动/点火控制器和驱动器 8BIT MCU 8K FLASH OTP RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
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