Sanyo LB1641 Specifications

Ordering number:EN2575B

Monolithic Digital IC

LB1641

Bidirectional Motor Driver

Overview

The LB1641 is a bidirectional motor driver IC. Since it
has a 2-input logic circuit and performs the functions of
bidirectional driving and braking, it is capable of direct
driving 6V, 9V, 12V motors. The output voltage can be

varied by using an external zener diode.

Features

• 2-input logic can be used to exercise control of
bidirectional driving and braking.

• On-chip elements to absorb dash current of motor.

• Input interfaceable to MOS LSI.

• Output voltage variable by use of external zener diode.

Specifications

Absolute Maximum Ratings at Ta = 25˚C

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xam 81V

CC

NI

TUO

Package Dimensions

unit:mm

3043A-SIP10

[LA1641]

SANYO : SIP10

Vot3.0–

CC

6.1±A

V

˚C
˚C

Operating Conditions at Ta = 25˚C

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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.

VCC1 81ot7V
VCC2 81ot5V

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquaters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

73098HA (KT)/N3093TS/6247KI, TS No.2575-1/4

Operating Characteristics at Ta = 25˚C

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Test Circuit

LB1641

nimpytxam

=∞ 1.13.15.1V

L

RL=∞ 0151Aµ

NI

RL06= Ω V,

O

LO

CC

1tasVVCCI,V21=
1tasVVCCI,V21=
2tasVVCCI,V21=
2tasVVCCI,V21=

Input level 1 : 2.0V or greater

V4.7=6.62.74.7V

Z

R,DNG6,5sniP

=∞ 10.00.1Am

L

R,DNG6,5sniP

=∞ 3601Am

L

Am003=9.12.2V

TUO

Am005=9.13.2V

TUO

Am003=52.05.0V

TUO

Am005=4.056.0V

TUO

0 : 0.7V or less

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Sample Application Circuit : 6V motor circuit

No.2575-2/4

Equivalent Circuit Block Diagram

LB1641

No.2575-3/4

LB1641

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 and all SANYO products described or contained herein fall under strategic
products (including services) controlled under the Foreign Exchange and Foreign Trade Control Law of
Japan, such products must not be exported without obtaining export license from the Ministry of
International Trade and Industry 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 July, 1998. Specifications and information herein are subject to
change without notice.

PS No.2575-4/4