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LB1817W Datasheet

  • LB1817W

  • DC Motor Controller/Driver

  • 9頁

  • ETC

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Ordering number : ENN5805
LB1817W
Monolithic Digital IC
LB1817W
FDD Spindle Motor Driver
Overview
The LB1817W is a spindle motor driver for low-profile
floppy disk drives.
Package Dimensions
unit: mm
3163A-SQFP48
[LB1817W]
9.0
7.0
0.5
0.18
36
37
25
24
Functions and Features
鈥?Three-phase full-wave linear drive
(with external PNP transistor)
鈥?Low saturation voltage
鈥?Built-in digital speed control
鈥?Start/stop circuit (Low active)
鈥?Switchable rotation speed
鈥?Current limiter circuit
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Built-in index processing circuit
Index timing adjustable by VR
AGC circuit
Thermal protection circuit
9.0
7.0
0.75
0.75
0.75
0.15
0.5
48
13
1
12
0.5
Specifications
Absolute Maximum Ratings
at Ta = 25
擄
C
Parameter
Maximum supply voltage
Maximum output current
Maximum constant output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V
CC
max
I
CC
max1
I
O
max2
Pd max1
Topr
Tstg
Conditions
t
鈮?/div>
0.5s
IC only
Ratings
7.0
1.5
1.0
0.45
鈥?0 to +80
鈥?0 to +150
Unit
V
A
A
W
擄C
擄C
Allowable Operating Ranges
at Ta = 25
擄
C
Parameter
Power supply voltage
Symbol
V
CC
Conditions
Ratings
4.2 to 6.5
Unit
V
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
73099RM(KI) No. 5805-1/9
0.1
0.5
SANYO : SQFP48
1.7max
0.75

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