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LB1847 fiches techniques PDF

Sanyo - PWM Current Control Type Stepping Motor Driver

Numéro de référence LB1847
Description PWM Current Control Type Stepping Motor Driver
Fabricant Sanyo 
Logo Sanyo 





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LB1847 fiche technique
Ordering number : EN5982
LB1847
Monolithic Digital IC
LB1847
PWM Current Control Type Stepping Motor Driver
Overview
The LB1847 is a driver IC for stepping motors with
PWM current control bipolar drive (fixed OFF
time). A special feature of this IC is that VREF
voltage is constant while the current can be set in
15 steps, allowing drive of motors ranging from 1-
2 phase exciter types to 4W 1-2 phase exciter
types. The current decay pattern can also be
selected (SLOW DECAY, FAST DECAY, MIX
DECAY) to increase the decay of regenerative
current at chopping OFF, thereby improving
response characteristics. This is especially useful
for carriage and paper feed stepping motors in
printers and similar applications where high-
precision control and low vibrations are required.
Package Dimensions
unit: mm
3147B-DIP28H
[LB1847]
28 15
R1.7
1
20.0
27.0
14
1.93
1.78
0.6 1.0
SANYO : DIP28H
Features
• PWM current control (fixed OFF time)
• Load current digital selector (1-2, W1-2, 2W1-2, 4W1-2 phase exciter drive possible)
• Selectable current decay pattern (SLOW DECAY, FAST DECAY, MIX DECAY)
• Simultaneous ON prevention function (feedthrough current prevention)
• Noise canceler
• Built-in thermal shutdown circuit
• Built-in logic low-voltage OFF circuit
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft's
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co., Ltd. Semiconductor Business Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
11499RM(KI) No. 5982-1/16

PagesPages 16
Télécharger [ LB1847 ]


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