參數(shù)資料
型號: LV8741V
廠商: SANYO SEMICONDUCTOR CO LTD
元件分類: 運(yùn)動控制電子
英文描述: STEPPER MOTOR CONTROLLER, 1.75 A, PDSO44
封裝: 0.275 INCH, SSOP-44
文件頁數(shù): 16/25頁
文件大?。?/td> 204K
代理商: LV8741V
LV8741V
No.A0814-23/25
Application Circuits
Stepping motor driver application circuit example
The setting conditions for the above circuit diagram example are as follows :
2-phase excitation (MD1/DC11 = Low, MD2/DC12 = Low)
Auto recovery-type output short-circuit protection function (EMM = Low)
Reset function fixed to normal operation (RST = High)
Chopping frequency : 37kHz (RCHOP = 43k)
ATT1
ATT2
Current setting reference voltage
L
VREF/3×100%
H
L
VREF/3×67%
L
H
VREF/3×50%
H
VREF/3×33%
The set current value is as follows :
IOUT = (VREF/3 × Voltage setting ratio) /0.25
0.1
F
VREG5
ATT2
ATT1
NC
EMO
CEM
EMM
RCHOP
MONI
RST
STP/DC22
FR/DC21
MD2/DC12
MD1/DC11
DM
OE
ST
VREF
NC
VCC
VM
VG
NC
GND
NC
OUT1A
VM1
RF1
OUT1B
OUT2A
VM2
RF2
OUT2B
NC
GND
NC
GND
NC
PGND
0.1
F
0.1
F
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
L
V8741V
-
+
+-
+
-
0.1
F
0.25
43k
20k
0.25
M
10
F
0.1
F
+
-
Logic input
Logic
input
Logic
input
CP2
CP1
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