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| 型号： | 33991 |
| 厂商： | Motorola, Inc. |
| 英文描述： | Gauge Driver Integrated Circuit |
| 中文描述： | 仪表驱动集成电路 |
| 文件页数： | 20/36页 |
| 文件大小： | 660K |
| 代理商： | 33991 |
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33991
20
Go to: www.freescale.com
ST0–Gauge0—Junctionovertemperature.Alogic[1]onthis
bit indicates coil drive circuitry dedicated to drive Gauge 0 has
exceeded the maximum allowable junction temperature since
the last SPI communication. Additionally, the same indication
signals the circuitry Gauge 0 is disabled. It is recommended the
pointer be re-calibrated using the RTZ command after re-
enabling the gauge, using the PECR command. This bit
remains logic [1] until the gauge is re-enabled.
0 = Temperature within range
1 = Gauge 0 maximum allowable junction temperature
condition has been reached
DEVICE FUNCTIONAL DESCRIPTION
State Machine Operation
The two-phase stepper motor is defined as maximum
velocity and acceleration, and deceleration. It is the purpose of
the stepper motor state machine to drive the motor with
maximum performance while remaining within the motor’s
velocity and acceleration constraints.
When commanded, the motor should accelerate constantly
to its maximum velocity then decelerate and stop at the desired
position. During the deceleration phase, the motor should not
exceed the maximum deceleration. A required function of the
state
machine is to ensure the deceleration phase begins at the
correct time, or position.
During normal operation, both stepper motor rotors are
microsteppedwith24stepsper electricalrevolution. See Figure
6. A complete electrical revolution results in 2 degrees of
pointer movement. There is a second, and smaller state,
machine in the IC controlling these microsteps. This state
machine receives
clockwise
or
counter-clockwise
index
commands at intervals, stepping the motor in the appropriate
direction by adjusting the current in each coil. Normalized
values can be seen in Table 13.
F
Freescale Semiconductor, Inc.
For More Information On This Product,
n
.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 33-991 | 制造商:Ideal Industries Inc 功能描述:LTKII,350MHZ,CAT6 W/CAT6 ADPT |
| 3399-1 | 制造商:3M 功能描述:3399-1 |
| 33992 | 制造商:Ideal Industries Inc 功能描述:LTKII500MHZ,CAT6A W/CAT6A ADPT |
| 33992510000001 | 功能描述:电缆组件 CABLE KIT RoHS:否 制造商:Molex 产品:Power Assemblies 类型:Cable Assembly 连接器端口 A:No Connector 连接器端口 A 管脚计数:4 连接器端口 B:No Connector 连接器端口 B 管脚计数: 型式:Male 线规 - 美国线规（AWG）:20, 28 长度:0.305 m 颜色:Black, Red |
| 33993 | 制造商:Ideal Industries Inc 功能描述:LTKII1000MHZ,CAT7A W/CAT6AADPT |
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