Overview
The LB1831M is a dual low-saturation bidirectional
motor driver IC for use in low-voltage applications. It is
especially suited for use in compact low-voltage motors
in portable equipment such as printer, FDD, camera.
Features
Specifications
Absolute Maximum Ratings at Ta = 25˚C
• Capable of being operated from a low voltage (2.5V
• Low saturation voltage.
• Parallel connection avaiable.
• Logic power supply and motor power supply are
• On-chip braking function.
• On-chip spark killer diodes.
• Possible to increase the internal allowable power
Ordering number:EN3296
M
O
n I
G
A
O
S
o l l
o t
min).
1.0V max at 400mA).
0.5V max at 400mA).
1.0V max at 800mA).
separate.
dissipation because the package is compact (MFP-
16FS) and heat can be radiated easily to the outside.
u
N
p
a
p
(Upper transistor+lower transistor residual voltage
(Upper transistor+lower transistor residual voltage
(Upper transistor+lower transistor residual voltage
p t
r e
i x
t u
D
a r
w
m
t u
t a
a
g
s
p
u
b
e
u
n i
n i
s
m
e l
p
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquaters
u
g
e t
p
f
p
o l
p
s
m
y l
e t
p
u
o
w
y l
p
m
p
v
w
o -
e
l o
p
p
r e
v
a r
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
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.
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.
y l
t u
e
l o
a t
a r
u t
i d
v
a t
g
c
e r
l o
e
s s
u t
P
r u
g
a
a t
e
e r
e r
p i
a r
g
t n
t a
m
e
o i
t e
n
r e
Low-Saturation Bidirectional Motor Driver
V C
P
P
V S
S
C
V
d
d
I
y
T
G
T
V N I
O
m
m
m
o
s
N
m
U
r p
g t
m
b
a
a
D
a
T
l o
x
x
a
x
1
2
x
Mounted on specified board (20 30 1.5mm
p
C I
r e
o
c
n
h
y l
a
n
n
l e
Package Dimensions
unit:mm
3097-MFP16FS
for Low-Voltage Applications
C
o
n
d
t i
o i
n
s
3
glass epoxy)
[LB1831M]
82098HA (KT)/2070TA/TS No.3296-1/3
Monolithic Digital IC
LB1831M
SANYO : MFP16FS
R
t a
4 –
0 –
0 –
0 –
n i
2 –
0
g
3 .
3 .
3 .
V S V
0
s
o t
o t
o t
o t
o t
+
1
+
+
+
+
9
2
+
1
1
S
1
1
1
0
0
7
2
0 .
F
0
0
0
0
0
5
5
U
m
m
˚C
˚C
V
V
V
V
A
n
W
W
t i