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LB11872H Folha de dados(PDF) 1 Page - Sanyo Semicon Device

Nome de Peças LB11872H
Descrição Electrónicos  Three-Phase Brushless Motor Driver for Polygonal Mirror Motors
Download  13 Pages
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Fabricante Electrônico  SANYO [Sanyo Semicon Device]
Página de início  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LB11872H Folha de dados(HTML) 1 Page - Sanyo Semicon Device

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Ordering number : ENN7257A
91002AS (OT) No. 7257 -1/13
Overview
The LB11872H is a three-phase brushless motor driver
developed for driving the motors used for the polygonal
mirror in laser printers and similar applications. It can
implement, with a single IC chip, all the circuits required
for polygonal mirror drive, including speed control and
driver functions. The LB11872H can implement motor
drive within minimal drive noise due to its use of current
linear drive.
Functions and Features
• Three-phase bipolar current linear drive + midpoint
control circuit
• PLL speed control circuit
• Speed is controlled by an external clock signal.
• Supports Hall FG operation.
• Built-in output saturation prevention circuit
• Phase lock detection output (with masking function)
• Includes current limiter, thermal protection, rotor
constraint protection, and low-voltage protection circuits
on chip.
• On-chip output diodes.
Package Dimensions
unit: mm
3233A-HSOP28H
(6.2)
28
15
114
0.8
15.2
2.7
0.3
0.25
(0.8)
2.0
SANYO: HSOP28H
[LB11872H]
LB11872H
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Three-Phase Brushless Motor Driver
for Polygonal Mirror Motors
Monolithic Digital IC
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.
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage
VCC max
30
V
Output current
IO max
T
≤ 500 ms
1.2
A
Allowable power dissipation 1
Pd max1
Independent IC
0.8
W
Allowable power dissipation 2
Pd max2
Mounted on a PCB (114.3
× 76.1 × 1.6 mm, glass epoxy)
2.0
W
Operating temperature
Topr
–20 to +80
°C
Storage temperature
Tstg
–55 to +150
°C
Specifications
Absolute Maximum Ratings at Ta = 25°C


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