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參數資料
| 型號： | LB1817W |
| 元件分類： | 運動控制電子 |
| 英文描述： | DISK DRIVE MOTOR CONTROLLER, 1.5 A, PQFP48 |
| 封裝： | SQFP-48 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 224K |
| 代理商： | LB1817W |
Ordering number : ENN5805
SANYO Semiconductors
DATA SHEET
LB1817W
Any and all SANYO Semiconductor 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 Semiconductor representative
nearest you before usingany SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor 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 Semiconductor
products described or contained herein.
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Monolithic Digital IC
No. 5805-1/9
Package Dimensions
unit: mm
3163A-SQFP48
73099RM(KI)
[LB1817W]
SANYO : SQFP48
Specifications
Absolute Maximum Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
7.0
V
Maximum output current
ICC max1 t ≤ 0.5s
1.5
A
Maximum constant output current
IO max2
1.0
A
Allowable power dissipation
Pd max1
IC only
0.45
W
Operating temperature
Topr
–20 to +80
°C
Storage temperature
Tstg
–40 to +150
°C
0.5
7.0
9.0
0.15
0.18
0.75
0.5
0.75
0.5
0.75
0.5
0.1
112
13
24
25
36
37
48
7.0
9.0
1.7max
Overview
The LB1817W is a spindle motor driver for low-profile
floppy disk drives.
Functions and Features
Three-phase full-wave linear drive
(with external PNP transistor)
Low saturation voltage
Built-in digital speed control
Start/stop circuit (Low active)
Switchable rotation speed
Current limiter circuit
Built-in index processing circuit
Index timing adjustable by VR
AGC circuit
Thermal protection circuit
Allowable Operating Ranges at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Power supply voltage
VCC
4.2 to 6.5
V
FDD Spindle Motor Driver
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