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參數(shù)資料
| 型號(hào)： | L6238 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Sensorless Spindle Motor Driver(無(wú)傳感器主軸電機(jī)驅(qū)動(dòng)器) |
| 中文描述： | 傳感器主軸電機(jī)驅(qū)動(dòng)器（無(wú)傳感器主軸電機(jī)驅(qū)動(dòng)器） |
| 文件頁(yè)數(shù)： | 33/35頁(yè) |
| 文件大?。?/td> | 383K |
| 代理商： | L6238 |
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Table 9
(continued)
Status Bit #
5
Signal Name
Align
Control Function Description
Separates the alignment times during start-
up. While low, the rotor will align to phase 1.
When high, the rotor will align to phase 3
until pllaced in the Go mode.
Indication of motor Phase relative to Fref.
(Must be used in conjunction with Up).
Indication of motor Phase relative to Fref.
(Must be used in conjunction with Dn).
Indicates whether the motor‘s frequency is
greater or less than the reference
frequency.
Determines if Phase Difference is within
threshold limits as set by control bits.
This bit toggles at the zero crossing
Logic
1 = 2nd
Alignment
0 = 1st
Alignment
1 = Phase > 0
0 = Phase
≤
0
1 = Phase > 0
0 = Phase
≥
0
1 = Fref > Fmtr
Default State
1
6
Dn
1
7
Up
0
8
Updn
0 = Fref < Fmtr
1 = In Phase
0 = Out of Phase
Toggles
1
9
Lock
0
10
Spin_
Sense
Stkrtr
0
11
Detects a fault due to motor failing to spin.
If upon entering the Go mode after the
double align, no generated Bemf is
detected, a 419ms timer, (Fsystem =
10MHz) will cause the outputs to tri-state
and flag a fault.
This signalcycles once every revolution,
providing a source of feedback for the
phase detector to lock onto. This signal is
not used when
EXT/INT
or Ext/Intare a
logic 1.
Indicates an overtemperature fault. Output
stage tristates.
Early overtemperature warning signal.
1 = Normal
0 = Fault
1
12
IntFmtr
1 cycle = 1
revolution
0
13
OTshdown
1 = Normal
0 = Overtemp
1 = Normal
0 = Overtemp
1 = Normal
0 = Fault
1
14
OTwarn
1
15
Mono
Indicates a fault due to a rapid deceleration
of the rotor caused by a sudden frictional
loading.
1
L6238
33/35
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