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LB11975 bảng dữ liệu(PDF) 1 Page - Sanyo Semicon Device

tên linh kiện LB11975
Giải thích chi tiết về linh kiện  High-Speed CD-ROM Spindle Motor Driver IC
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nhà sản xuất  SANYO [Sanyo Semicon Device]
Trang chủ  https://www.sanyo-av.com/us/
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Ordering number : ENN6497A
11201RM (OT) No. 6497-1/12
Overview
The LB11975 is a monolithic bipolar IC developed for
uses as a spindle motor driver for high-speed CD-ROM
and DVD-ROM drives. To minimize heat generation
during high-speed rotation and braking, the LB11975
adopts direct PWM drive in the output stage. During
reverse braking the upper and lower side output transistors
are both driven in PWM mode to implement dual PWM
controlled braking. The device thus controls the current to
remain under a limit value and prevent rapid heat
generation. This prevents device destruction due to rapid
heating. The absolute maximum voltage rating is 27 V,
and the maximum current is 2.5 A.
Functions and Features
• Direct PWM drive (lower side control)
• Built-in upper and lower side output diodes
• Supports the use 3.3 V DSP devices.
• Power saving function for standby mode
• Hall FG output (1 or 3 Hall device operation)
• Built-in Hall device power supply
• Reverse rotation detection output and drive cutoff circuit
• Voltage control amplifier
• Current limiter circuit
• Thermal protection circuit
Package Dimensions
unit: mm
3251-HSOP36R
(6.2)
36
1
19
18
0.8
2.0
17.8
0.3
2.7
0.25
(0.5)
SANYO: HSOP36R
[LB11975]
LB11975
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
High-Speed CD-ROM Spindle Motor Driver IC
Monolithic Digital IC
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.
0.4
0
0.8
0.9
1.2
1.6
2.0
2.1
2.4
–20
0
20
40
60
80
100
Pd max — Ta
Ambient temperature, Ta —
°C
Mounted on the specified printed circuit
(114.3
× 76.1 × 1.6 mm3 glass epoxy board)
Independent IC
0.54
1.26


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