lv8732v ON Semiconductor, lv8732v Datasheet - Page 24
![no-image](/images/manufacturer_photos/0/4/495/on_semiconductor_sml.jpg)
lv8732v
Manufacturer Part Number
lv8732v
Description
Bi-cmos Lsi Pwm Constant-current Control Stepping Motor Driver
Manufacturer
ON Semiconductor
Datasheet
1.LV8732V.pdf
(26 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LV8732V
Manufacturer:
SANYO/三洋
Quantity:
20 000
Company:
Part Number:
lv8732v-TLM-H
Manufacturer:
ON Semiconductor
Quantity:
1 500
Application Circuit Example
• Stepping motor driver circuit (DM = Low)
The formulae for setting the constants in the examples of the application circuits above are as follows :
Constant current (100%) setting
Chopping frequency setting
Timer latch time when the output is short-circuited
Short-circuit state
detection monitor
Position detection
When VREF = 1.5V
Logic input
monitor
Clock input
100pF
200pF
1.5V
-
+
I OUT = VREF/5/RF resistance
Fchop = Ichop/ (Cchop × Vtchop × 2)
Tcem = Ccem × Vtcem/Icem
= 1.5V/5/0.3Ω = 1.0A
= 10μA/ (200pF × 0.5V × 2) = 50kHz
= 100pF × 1V/10μA = 10μs
10
11
12
13
14
15
16
17
18
19
20
21
22
1
2
3
4
5
6
7
8
9
VG
VM
CP2
CP1
VREG5
ATT2
ATT1
EMO
CEM
EMM
CHOP
MONI
RST/BLK
STEP/DC22
FR/DC21
MD2/DC12
MD1/DC11
DM
OE
ST
VREF
GND
LV8732V
OUT1A
OUT1A
OUT1B
OUT1B
OUT2A
OUT2A
OUT2B
OUT2B
PGND
PGND
VM1
VM1
VM2
VM2
RF1
RF1
RF2
RF2
NC
NC
NC
NC
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
+ -
24V
M
No.A1483-24/26