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.
Monolithic Digital IC
3V Camera 1.5-Channel Driver
Ordering number:ENN6195A
LB1934T
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
12502TN (KT)/62599RM (KI) No.61951/6
0.65
(0.33)
0.22
0.5
0.15
(1.0)
0.08
1.2max
6.4
4.4
6.5
1
10
20
11
Package Dimensions
unit:mm
3246-TSSOP20
[LB1934T]
SANYO : TSSOP20
Overview
The LB1934T is a low-voltage, low-saturation forward/
reverse driver IC with built-in 1.5-channel bridge. Its com-
pact, low-profile package makes it ideal for use in compact
cameras powered by 3V lithium batteries.
Using direct microcontroller drive, it is possible to control
standby, forward rotation, reverse rotation, and braking of
two motors for film rewind and lens drive by means of only
three control signals. The 0.5-channel section of the 1.5-
channel bridge can be divided into sink/source output, al-
lowing configurations such as 1-channel bridge + sink out-
put + source output.
Features
Low voltage drive possible.
When using same power supply for V
CC
and V
S
:
V
CC
=V
S
=1.4V min.
When using separate power supply for V
CC
and V
S
:
V
S
=1.0V min., V
CC
=1.4V min.
Low saturation voltage : residual voltage (upper side tran-
sistor + lower side transistor) =0.5V typ. at Io=1A.
Zero power dissipation in standby mode.
Direct microcontroller drive possible (any strength rela-
tionships of voltage supported between microcontroller
control signal and V
CC
or V
S
).
Logic power supply and motor power supply can be sup-
plied at separate pins.
Built-in thermal protection circuit.
Number of control signals can be optimized for the set.
"2-motor control" or "1-motor + 2-load control" can be
implemented by 3 control signals.
In addition to the above, 4 control signals allow
implemention of a "input ignore mode" where two con-
trol signals are used in conjunction with other IC input
signals.
Built-in spark killer diode.
Compact, low-profile package (TSSOP-20 ; thickness=1.1
mm typ.)
LB1934T
No.61952/6
Electrical Characteristics
at Ta = 25C, V
S
=V
CC
=3V
C
C
Allowable Operating Ranges
at Ta = 25C
Specifications
Absolute Maximum Ratings
at Ta = 25C
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=
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A
200
0
400
600
800
850
1000
20
0
20
40
60
70
80
100
Allowable Power Dissipation,
Pd max
m
W
Pd max -
Ta
Ambient Temperature, Ta
C
With specified substrate (76.1
114.3
1.6mm
3
glass exposy)
*Specified substrate : 76.1
114.3
1.6mm
3
(glass exposy)
LB1934T
No.61955/6
Sample Application Circuits
1) 2-motor control (3 control signals)
C
P
U
VCC
S-GND
P-GND
MD1
MD2
IN1
IN2
VS
OUT1
OUT2
OUT3N
OUT3P
SW-Reg
M
M
C
P
U
VCC
S-GND
P-GND
MD1
MD2
IN1
IN2
VS
OUT1
OUT2
OUT3N
OUT3P
SW-Reg
M
C
P
U
VCC
S-GND
To other IC
P-GND
MD1
MD2
IN1
IN2
VS
OUT1
OUT2
OUT3N
OUT3P
SW-Reg
M
M
2) 1-motor + 2-load control (3 control signals)
3) 2-motor control (4 control signals)
Note : 1-motor + 2-load control can also be implemented with 4 control signals.
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 expor ted without obtaining the expor t license from the author ities
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 January, 2002. Specifications and information herein are subject
to change without notice.
LB1934T
PS No.61956/6
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