Sanyo LB1257 Specifications
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
8-Unit, Low-Saturation Driver
Ordering number:ENN993C
LB1257
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Applications
• 4-phase stepping motor driver of 2 channels.
• Especially suited for X-Y plotter driver (Meeting the requirements for Alps DPG plotter).
• General-purpose 8-unit large current & low saturation
voltage driver (Relay, LED, lamp, solenoid, etc.).
Features
• Large current capacity (400mA) and ow saturation voltage (0.5V max),
• With spark killer diode provided.
Specifications
Absolute Maximum Ratings at Ta = 25˚C
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatlovylppusmumixaMV
egatlovylppustuptuOV
egatlovylppustupnIV
tnerructuptuomumixaMI
tnerrucdrawrofmumixaMI
tnerructuo-wolfnipDNGI
niardtnerrucsuoenatnatsnII
noitapissidrewopelbawollAxamdP 31.1W
erutarepmetgnitarepOrpoT 57+ot02–
erutarepmetegarotSgtsT 521+ot04–
xam 0.7+ot3.0–V
CC
TUO
NI
TUO
MSF
DNG
PCC
tinureP 004Am
Package Dimensions
unit:mm
3007B-DIP18
[LB1257]
24.0
18
1
(1.84)
sm53<htdiwesluP 0003Am
2.54
htdiweslup,edoidrellikkrapS ≤ %5ytud,sm53004Am
%5ytud,sm53<htdiwesluP 0003Am
10
6.4
7.62
9
(3.25)
3.85max
3.3
1.20.5
0.51min
SANYO : DIP18
ot3.0–0.01+V
0.25
0.7+ot3.0–V
˚C
˚C
Allowable Operating Ranges at Ta = 25˚C
retemaraPlobmySsnoitidnoCsgnitaRtinU
egatlovylppuSV
egatlovlevel-HtupnIV
egatlovlevel-LtupnIV
CC
I
HI
I
LI
Am002= 0.7ot3.2V
TUO
≤ Aµ0017.0+ot3.0–V
TUO
13101TN (KT)/O3095YK/8037KI/8035KI/1192KI, KS No.993–1/3
0.6ot3.2V
Electrical Characteristics at Ta = 25˚C
retemaraPlobmySsnoitidnoC
V
egatlovtuptuO
egatlovniatsustuptuOV
tnerrucegakaeltuptuOI
tnerructupnII
tnerrucesreveredoidrellikkrapSI
egatlovdrawrofedoidrellikkrapSV
V
V
Equivalent Circuit
LB1257
sgnitaR
nimpytxam
VNIV=
1TUO
V
2TUO
NI
V
3TUO
NI
V
)sus(O
NI
V
ffo
NI
V
NI
NI
V
)s(kael
)s(F
TUO
I
)s(F
I,V3.2=
CC
V,V0.3=
CC
V,V5.5=
CC
I,nepo:
TUO
V,V7.0=
CC
I,V0.6=
0=0.1Am
TUO
V,V0=
CC
Am004= 0.3V
Am002=4.0V
TUO
I,V5.3=
I,V0.6=
V,V0.6=
V0.6=03Aµ
Am002=52.0V
TUO
Am004=5.0V
TUO
t,Am004= ≤ sµ0101V
V0.6=001Aµ
TUO
tinU
The loss of the following wavefor m is
allowed at Ta=60°C
No.993–2/3
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