參數(shù)資料
型號(hào)： MCZ33977EG
廠商： 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述： Single Gauge Driver
中文描述： 單表驅(qū)動(dòng)
文件頁(yè)數(shù)： 12/37頁(yè)
文件大?。?/td> 402K
代理商： MCZ33977EG
Analog Integrated Circuit Device Data
Freescale Semiconductor
12
33977
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
STATE MACHINE OPERATION
The 33977 is ideal for use in instrumentation systems
requiring distributed and flexible stepper motor gauge driving.
The device also eases the transition to stepper motors from
air core motors by emulating the air core pointer movement
with little additional processor bandwidth utilization. The two-
phase stepper motor has maximum allowable velocities and
acceleration and deceleration. The purpose of the stepper
motor state machine is to drive the motor with the maximum
performance while remaining within the motor’s voltage,
velocity, and acceleration constraints.
A requirement of the state machine is to ensure the
deceleration phase begins at the correct time and pointer
position. When commanded, the motor [
will
deleted PV]
accelerates constantly to the maximum velocity, and then it
moves toward the commanded position at the maximum
velocity. Eventually, the pointer reaches the calculated
location where the movement has to decelerate, safely
slowing to a stop at the desired position. During the
deceleration phase, the motor does [
will
deleted PV] not
exceed the maximum deceleration.
During normal operation, both stepper motor rotors are
microstepped at 24 steps per electrical revolution, illustrated
in
Figure 7
. A complete electrical revolution results in two
degrees of pointer movement. There is a second smaller
[parentheses removed-unnecessary] state machine in the IC
controlling these microsteps. The smaller state machine
receives
clockwise
or
counter-clockwise
index commands at
timed intervals, thereby stepping the motor in the appropriate
direction by adjusting the current in each coil. Normalized
values are provided in
Table 5
.
Figure 7. Clockwise Microsteps
Table 5. Coil Step Value
Step Angle
SINE
(Angle)*
COS (Angle -30)*
PE6=0
COS (Angle -30)*
PE6=1
0
0.0
0.0
1.0
0.866
1
15
0.259
0.965
0.966
2
30
0.5
0.866
1.0
3
45
0.707
0.707
0.966
4
60
0.866
0.5
0.866
5
75
0.966
0.259
0.707
6
90
1.0
0.0
0.500
7
105
0.966
-0.259
0.259
8
120
0.866
-0.5
0.0
9
135
0.707
-0.707
-0.259
10
150
0.5
-0.866
-0.500
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCZ33977EG 制造商:Freescale Semiconductor 功能描述:IC STEPPER MOTOR GAUGE DRIVER SPI
MCZ33977EGR2 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 SINGLE GAUGE DR. LG. PTR RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類(lèi)型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
MCZ33989EG 功能描述:網(wǎng)絡(luò)控制器與處理器 IC SBC-HS RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
MCZ33989EG 制造商:Freescale Semiconductor 功能描述:IC SYSTEM BASIS W/CAN TRANCEIVER
MCZ33989EGR2 功能描述:網(wǎng)絡(luò)控制器與處理器 IC SBC-HS RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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