參數(shù)資料
型號(hào)： L6280
廠商： 意法半導(dǎo)體
英文描述： THREE CHANNELS MULTIPOWER DRIVER SYSTEM
中文描述： 三通道移動(dòng)電站驅(qū)動(dòng)系統(tǒng)
文件頁(yè)數(shù)： 12/26頁(yè)
文件大?。?/td> 388K
代理商： L6280
Dataand Address Decoding
SPECIALWORDS
A3
0
A2
0
A1
1
A0
1
D3
1
D2
0
D1
1
D0
0
KEYWORD
This word is usedduring the start-up procedure to
enable operations; all settings arrived before the
keywordare reset.
A3
0
A2
0
A1
1
A0
1
D3
0
D2
1
D1
0
D0
1
WATCHDOG
The microprocessor must periodically generate
this word; the value of the maximum period is set
by the capacitor C
D
. The absence of the Watch-
dog is interpreted by L6280 as a microprocessor
failure.The maximum period is:
T
WD
= C
Dx
1.5 / ( 50
x
10E-6)
Except for special words (keyword and watch-
dog), the input words are organized like the fol-
lowing:
A0 A1
Operationselection
A2 A3
Channelselection
D0 D1 D2 D3 Datas
A0,A1DECODING (OPERATION SELECTION)
A0,A1select the type of operation (channelinitiali-
zation,commands, DACs loading, DAC in-
crement/decrement).
A0 A1
0 0 This configurationis used to send the infor-
mationabout the configurationof the
vchannel specifiedby A3 and A2; D0 to D3
are used to specify the configurationof the
channel (full bridge,dual half bridge, unipo-
lar motor).
A0 A1
1
0 This configurationis usedto changedriv-
ing strategyof theoutput stages of the
channel specifiedby A3 and A2 (full/half
step, slow/fast decay and so on). The driv-
ing strategyis codedin D0 to D3, and de-
pendsfrom the configurationof the output
stage.
A0 A1
0 1 This configurationis used to load the value
of a DAC of the channelselected by A3
and A2. D3 indicates rightand left DAC
just for channel1 and 2.
Figure12
: ProgramSequence
L6280
12/26
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