參數(shù)資料
型號: L6238
廠商: 意法半導體
英文描述: Sensorless Spindle Motor Driver(無傳感器主軸電機驅動器)
中文描述: 傳感器主軸電機驅動器(無傳感器主軸電機驅動器)
文件頁數(shù): 32/35頁
文件大小: 383K
代理商: L6238
Table 6:
PhaseDelay.
Phase_Dly_2
Phase_Dly_1
Phase_Dly_0
Delay, in
Electrical Degrees
0.0
9.4
18.80
20.68
22.56
24.44 (Default)
26.32
28.20
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Table 7:
Lock Threshold (Fsys = 10MHz)
Lock_1
0
0
1
1
Lock_0
0
1
0
1
Threshold, in
μ
s
6.4
12.8
25.6
51.2 (Default)
Table 8:
Auto-StartDelay.
Auto_Start_Dly_1
Auto_Start_Dly_0
Delay, in Seconds
90Hz Input
0.711
1.422
2.133
2.844
60Hz Input
1.07
2.13
3.2
4.27 (Default)
0
0
1
1
0
1
0
1
Table 9:
StatusRegister.
Status Bit #
0
Signal Name
Control_0
Control Function Description
These two bits area wrap-around of their
corresponding control bits for test purposes.
Logic
Follows
Control_0
Follows
Control_1
1 = Detect
Bemf
0 = Mask out
Bemf
1 = Delay
Default State
0
1
Control_1
0
2
Mask
When the motor controllerdetects a zero
crossing, Mask will go low and remain low
for 15 electrical degrees after the next
commutation.
Upon detection of a zero crossing, Delay
will go high for atime determined by the
Phase Delay Control bits. Afterthe delay
period, Delay will go low, initiating the next
commutation.
Signifieswhether the rotor is in the
alignment phase of start-up or is ramping
up to speed
Separates the align
1/0
3
Delay
0 =
Commutation
0/1
4
Go
1 = Run
0 = In Start Up
1
5
Align
L6238
32/35
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