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PDF LV8713T Data sheet ( Hoja de datos )
| Número de pieza | LV8713T | |
| Descripción | PWM Constant-Current Control Stepping Motor Driver | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Ordering number : ENA1918
LV8713T
Bi-CMOS LSI
PWM Constant-Current Control
Stepping Motor Driver
http://onsemi.com
Overview
The LV8713T is a stepping motor driver of the micro-step drive corresponding to supports 8W 1-2 phase excitation. It
is the best for the drive of the stepping motor for a scanner and a small printer.
Features
• Single-channel PWM constant-current control stepping motor driver incorporated.
• Control mode can be set to 2-phase, 1-2 phase, 4W1-2 phase , or 8W1-2 phase
• Microstep can control easily by the CLK-IN input.
• Power-supply voltage of motor
: VM max = 18V
• Output current
: IO max = 0.8A
• Output ON resistance
: RON = 1.1Ω (upper and lower total, typical, Ta = 25°C )
• A thermal shutdown circuit and a low voltage detecting circuit are built into.
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Motor supply voltage
Logic supply voltage
Output peak current
Output continuousness current
Logic input voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VM max
VCC max
IO peak
IO max
VIN
Pd max
Topr
Tstg
Conditions
Each 1ch, tw ≤ 10ms, duty 20%
Each 1ch
*
* Specified circuit board : 57.0mm×57.0mm×1.7mm, glass epoxy 2-layer board.
Ratings
18
6
1.0
800
-0.3 to VCC + 0.3
1.35
-20 to +85
-55 to +150
Unit
V
V
A
mA
V
W
°C
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Semiconductor Components Industries, LLC, 2013
June, 2013
20211 SY 20110117-S00002 No.A1918-1/16
1 page  
Block Diagram
LV8713T
No.A1918-5/16
5 Page 
LV8713T
(10) Chopping frequency setting
For constant-current control, this IC performs chopping operations at the frequency determined by the capacitor
(Cchop) connected between the CHOP pin and GND.
The chopping frequency is set as shown below by the capacitor (Cchop) connected between the CHOP pin and GND.
Tchop C × V × 2 / I (s)
V : Width of suresshu voltage, typ 0.5V
I : Charge/discharge current, typ 10μA
For instance, when Cchop is 200pF, the chopping frequency will be as follows :
Fchop 1 / Tchop (Hz)
(11) Output current vector locus (one step is normalized to 90 degrees)
100.0
66.7
33.3
0.0
0.0
33.3 66.7
Channel 2 current ratio (%)
100.0
No.A1918-11/16
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet LV8713T.PDF ] | |
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