LV8741V-TLM-E ON Semiconductor, LV8741V-TLM-E Datasheet - Page 23

• Manufacturer Part Number: LV8741V-TLM-E
• Description: Motor / Motion / Ignition Controllers & Drivers STEPPING MOTOR
• Manufacturer: ON Semiconductor

Specifications of LV8741V-TLM-E

• Motor Type: DC
• No. Of Outputs: 2
• Driver Case Style: SSOP
• No. Of Pins: 44
• Operating Temperature Range: -20°C To +85°C
• Svhc: No SVHC (20-Jun-2011)
• Base Number: 8741
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Details

Application Circuits
• Stepping motor driver application circuit example
The setting conditions for the above circuit diagram example are as follows :
The set current value is 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 = 43kΩ)
I OUT = (VREF/3 × Voltage setting ratio) /0.25Ω
ATT1
43kΩ
0.1µF
H
H
L
L
0.1µF
0.1µF
-
-
+
+
Logic input
0.1µF
ATT2
20kΩ
H
H
L
L
10
11
12
13
14
15
16
17
18
19
20
21
22
1
2
3
4
5
6
7
8
9
CP2
CP1
V CC
VREG5
ATT2
ATT1
NC
EMO
CEM
EMM
RCHOP
MONI
RST
STP/DC22
FR/DC21
MD2/DC12
NC
MD1/DC11
DM
OE
ST
VREF
LV8741V
Current setting reference voltage
OUT1A
OUT1B
OUT2A
OUT2B
PGND
VREF/3×100%
VREF/3×67%
VREF/3×50%
VREF/3×33%
GND
GND
GND
VM1
VM2
RF1
RF2
VM
VG
NC
NC
NC
NC
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
0.25Ω
0.25Ω
+ -
10µF
+
-
0.1µF
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