LV8736V-TLM-H ON Semiconductor, LV8736V-TLM-H Datasheet - Page 24

• Manufacturer Part Number: LV8736V-TLM-H
• Description: STEPPING MOTOR DRIVER
• Manufacturer: ON Semiconductor

Specifications of LV8736V-TLM-H

• Motor Type: Stepper
• No. Of Outputs: 2
• Output Current: 1A
• Supply Voltage Range: 9V To 32V
• Driver Case Style: SSOP
• No. Of Pins: 44
• Operating Temperature Range: -20°C To +85°C
• Svhc: No SVHC (20-Jun-2011)
• Rohs Compliant: Yes

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
When VREF = 1.5V
Short-circuit state
detection monitor
Position detection
Logic input
monitor
Clock input
100pF
200pF
-
I OUT = VREF/5/RF resistance
Fchop = Ichop/ (Cchop × Vtchop × 2)
Tcem = Ccem × Vtcem/Icem
+
= 1.5V/5/0.47Ω = 10.64A
= 10μA/ (200pF × 0.5V × 2) = 50kHz
= 100pF × 1V/10μA = 10μs
10
12
13
14
15
16
17
18
19
20
21
22
11
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/CMK
ST
VREF
GND
LV8736V
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
+ -
M
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