参数资料
型号: AMIS30623C623AG
厂商: ON Semiconductor
文件页数: 17/61页
文件大小: 0K
描述: IC MOTOR DVR MICROSTP LIN 32NQFP
标准包装: 40
应用: 步进电机驱动器
评估套件: 可供
输出数: 1
电流 - 输出: 800mA
电源电压: 6.5 V ~ 29 V
工作温度: -40°C ~ 165°C
安装类型: 表面贴装
封装/外壳: 32-VQFP 裸露焊盘
供应商设备封装: 32-NQFP(7x7)
包装: 管件
AMIS ? 30623
+10000
0
+20000
ActPos = +30000
Motion direction
Hardwired Address HW2
In the drawing below, a simplified schematic diagram is
shown of the HW2 comparator circuit.
The HW2 pin is sensed via 2 switches. The DriveHS and
DriveLS control lines are alternatively closing the top and
? 20000
TagPos = ? 30000
? 10000
Figure 9. Motion Direction is Function of
Difference between ActPos and TagPos
I/R
bottom switch connecting HW2 pin with a current to resistor
converter. Closing S TOP (DriveHS = 1) will sense a current
to GND. In that case the top I 3 R converter output is low,
via the closed passing switch S PASS_T this signal is fed to the
“R” comparator which output HW2_Cmp is high. Closing
bottom switch S BOT (DriveLS = 1) will sense a current to
V BAT . The corresponding I 3 R converter output is low and
via S PASS_B fed to the comparator. The output HW2_Cmp
will be high.
S PASS_T
State
1k
S TOP
DriveHS
High
Low
1
2
1 = R2GND
2 = R2VBAT
3 = OPEN
3
HW2
S BOT
DriveLS
I/R
S PASS_B
‘‘R” ? Comp
COMP
LOGIC
Debouncer
32 m s
Debouncer
64 ms
Float
R th
HW2_Cmp
Figure 10. Simplified Schematic Diagram of the HW2 Comparator
3 cases can be distinguished (see also Figure 10 above):
? HW2 is connected to ground: R2GND or drawing 1
? HW2 is connected to VBAT: R2VBAT or drawing 2
? HW2 is floating: OPEN or drawing 3
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