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PDF LB11822 Data sheet ( Hoja de datos )
| Número de pieza | LB11822 | |
| Descripción | Three-Phase Brushless Motor Driver | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Ordering number : ENN7105
Monolithic Digital IC
LB11822
Three-Phase Brushless Motor Driver for OA Products
Overview
The LB11822 is a three-phase brushless motor driver that
is optimal for driving drum and paper feed motors in laser
printers and plain paper copiers. This IC adopts a direct
PWM drive technique for minimal power loss. Flexible
control of motor speed in response to an externally
provided clock frequency (corresponding to the FG
frequency) can be implemented by using the LB11822 in
conjunction with the Sanyo LB11825M.
Functions and Features
• Three-phase bipolar drive (30 V, 3.1 A)
• Direct PWM drive
• Built-in low side inductive kickback absorbing diode
• Speed discriminator + PLL speed control
• Speed locked state detection output
• Built-in forward/reverse switching circuit
• Full complement of built-in protection circuits,
including current limiter circuit, thermal protection
circuit, and motor lock protection circuit.
Package Dimensions
unit: mm
3147B-DIP28H
[LB11822]
28 15
R1.7
1 20.0 14
27.0
1.93 1.78
0.6 1.0
SANYO: DIP28H
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Supply voltage
Output current
Allowable power dissipation 1
Allowable power dissipation 2
Operating temperature
Storage temperature
Symbol
VCC max
IO max
Pd max1
Pd max2
Topr
Tstg
Conditions
T ≤ 500 ms
Independent IC
When infinitely large heat sink
Ratings
30
3.1
3
20
–20 to +80
–55 to +150
Unit
V
A
W
W
°C
°C
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 Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
N1703SI (OT) No. 7105-1/11
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LB11822
Equivalent Circuit Block Diagram and Peripheral Circuits
DataSheet4 U .com
No. 7105-5/11
5 Page 
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LB11822
Stop time (ms) ≥ 15 × C (µF)
11. Power supply stabilization
This IC has a large output current and is driven by switching, resulting in ready oscillation of the power line. It is
therefore necessary to connect a capacitor with a sufficient capacity between the VCC pin and GND for stabilization.
When a diode is inserted in the power line to prevent breakdown due to reverse connection of power supply, the power
line is particularly readily oscillated. The larger capacity need be selected.
12. Constant of integrating amplifier parts
Arrange the integrating amplifier external parts as near as possible to IC to protect them from noise effects. Arrange
them by keeping the largest possible distance from the motor.
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer’s
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer’s products or equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
In the event that any or all SANYO products (including technical data, services) described or contained
herein are controlled under any of applicable local export control laws and regulations, such products must
not be exported without obtaining the export license from the authorities concerned in accordance with the
above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co., Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the “Delivery Specification”
for the SANYO product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.
This catalog provides information as of November, 2003. Specifications and information herein are
subject to change without notice.
PS No. 7105-11/11
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| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet LB11822.PDF ] | |
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