參數(shù)資料
型號(hào)： AMIS-30621-AGA
元件分類： 運(yùn)動(dòng)控制電子
英文描述： STEPPER MOTOR CONTROLLER, 0.8 A, PDSO20
封裝： 300 INCH, PLASTIC, SOIC-20
文件頁(yè)數(shù)： 11/57頁(yè)
文件大?。?/td> 1017K
代理商： AMIS-30621-AGA
AMIS-30621 LIN Micro-stepping Motor Driver
Data Sheet
19
AMI Semiconductor
– Sept. 2007, Rev 1.5
www.amis.com
Table 15: State Diagram of the HW2 Comparator
Previous State
DriveLS
DriveHS
HW2_Cmp
New State
Condition
Drawing
Float
1
0
Float
R2GND or OPEN
1 or 3
Float
1
0
1
High
R2VBAT
2
Float
0
1
0
Float
R2VBAT or OPEN
2 or 3
Float
0
1
Low
R2GND
1
Low
1
0
Low
R2GND or OPEN
1 or 3
Low
1
0
1
High
R2VBAT
2
Low
0
1
0
Float
R2VBAT or OPEN
2 or 3
Low
0
1
Low
R2GND
1
High
1
0
Float
R2GND or OPEN
1 or 3
High
1
0
1
High
R2VBAT
2
High
0
1
0
High
R2VBAT or OPEN
2 or 3
High
0
1
Low
R2GND
1
The logic is controlling the correct sequence in closing the switches and in interpreting the 32
μs debounced HW2_Cmp output
accordingly. The output of this small state-machine is corresponding to:
High or address = 1
Low or address = 0
Floating
As illustrated in Table 17 the state is depending on the previous state, the condition of the two switch controls (DriveLS and DriveHS)
and the output of HW2_Cmp. Figure 12 is showing an example of a practical case where a connection to VBAT is interrupted.
Figure 12: Timing Diagram Showing the Change in States for HW2 Comparator
t
R
th
Tsw = 1024
μs
DriveHS
"R"-Comp
t
DriveLS
HW2_Cmp
State
t
Tsw_on = 64
μs
Condition
R2VBAT
OPEN
High
Lo
w
F
loat
High
R2VBAT
R2GND
F
loat
High
F
loat
F
loat
High
Lo
w
Lo
w
t
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AMIS30621C6216G 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 LIN STEPPER DRIVER RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型: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
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