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參數(shù)資料
| 型號(hào)： | L9935 |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | TWO-PHASE STEPPER MOTOR DRIVER |
| 中文描述： | 兩相步進(jìn)電機(jī)驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 15/19頁 |
| 文件大?。?/td> | 159K |
| 代理商： | L9935 |
These sequences are intended to give the user a good starting point for his software development. Be-
sides these two there are further possibilities how to implement control sequences for this device (other
currents,quarters step etc.).
SDI
SDO
A
O
P
E
N
B
O
P
E
N
A1
S
H
O
R
T
VS
76
A2
S
H
O
R
T
VS
76
B1
S
H
O
R
T
VS
76
B2
S
H
O
R
T
VS
76
A1
*)
S
H
O
R
T
GND
76
A2
*)
S
H
O
R
T
GND
76
B1
*)
S
H
O
R
T
GND
76
B2
*)
S
H
O
R
T
GND
76
therm.
alarm
therm.
shut
down
(reset
operating
codes)
bit
76543210
XX111111
XX011111
XX011111
XX011111
XX011011
XX111011
XX010011
XX010111
XX010010
XX110010
XX011010
XX011110
XX011011
XX111011
XX010011
XX010111
XX010010
XX110010
76543210
previous code
11111111
11011111
11011111
11011111
11011111
11011011
11111011
11010011
11010111
11110010
11011010
11011110
11011011
11111011
11010011
11010111
11010010
76
76
76
76543210
11
11
11
11
11
01
11
11
11
01
11
11
11
01
11
11
11
11
11
11
11
11
11
11
01
11
11
11
01
11
11
11
01
11
11
11
11
11
11
01
01
01
01
01
11
11
01
01
01
01
01
11
01
01
01
01
01
11
11
11
01
01
01
01
01
11
11
11
11
11
11
11
11
11
11
01
01
01
01
01
11
11
11
01
01
11
11
11
11
01
01
01
01
11
11
11
01
01
01
01
01
11
11
10
10
10
10
01
11
11
11
11
10
01
10
01
11
11
11
11
11
11
11
11
11
10
10
10
01
11
11
11
11
10
10
10
11
11
11
11
10
10
10
01
11
11
11
11
10
10
10
01
11
11
11
11
11
11
11
11
11
10
10
10
01
11
11
11
11
10
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00111111
00111111
00111111
00111111
00111111
00111111
00111111
00111111
00111111
00111111
00111111
00111111
00111111
00111111
00111111
00111111
00111111
Double errors: Double errors will create composite codes by an AND operation between columns of the
same dominance.Openand short to VSare the least dominant error codes.(first 6 error code columns).
Short to ground is the seconddominant error code. detection of short to gnd will overwrite error codes of
the least dominant kind (open, short to VS). Temperature prealarm and thermal shut down are the most
dominant error codes. Thermal prealarm returns error code 00 but the device stillis working and returns
the appropriateoperationcode (bits 0..5).
Thermal shut down returnserror code 00 and turns off the device.The opcode returnedcorresponds the
action eventuallyperformed(bit 0..5 become1).
For example open bridge A and simultaneously open bridge B will lead to error code 01 by performing
an ANDoperation between the two correspondingcolumns.
*) Motorresistance approximatelly 10
and V
= 12V.So a short to ground only is detected on one branche of the bridge. Lower resistivity of
the motor may lead to detection of short toground on both branches of the bridge leading to code 10 on all steps.
ElectromagneticEmission classification(EME)
ElectromagneticEmission classes presentedbelow are typical datafoundon benchtest. For detailedtest de-
scriptionpleaserefer to ’ElectromagneticEmission (EME) Measurementof IntegratedCircuits, DC to 1GHz’ of
VDE/ZVEIwork group767.13andVDE/ZVEIwork group767.14orIECprojectnumber47A1967Ed.Thisdata
is targetedto boarddesignerstoallowanestimationofemissionfilteringeffortrequiredinapplication.
Pin
GND
V
CC
EME class
10
Remark
E
E
K
G
E
0
e
h
f
f
f
1
test
Blocked with 100nFclosemto the device
EN. SDI, CSN, CSK, SDO in tristate
SDO
Power output A
1
, A
2
, B
1
, B
2
Power output A
1
, A
2
, B
1
, B
2
ElectromagneticEmission is not testedin production.
SDO in low-Z state, nodata transfer
Sourcing output
Sinking output in chopping mode f
osc
=20kHz
5
6
L9935
15/19
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