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LB1997

Sanyo
Part Number LB1997
Manufacturer Sanyo
Description Three-Phase Brushless Motor Driver
Published Apr 25, 2005
Detailed Description Ordering number : EN5978A LB1997 Monolithic Digital IC LB1997 Three-Phase Brushless Motor Driver for CD-ROM Spindle Dr...
Datasheet PDF File LB1997 PDF File

LB1997
LB1997

Overview
Ordering number : EN5978A LB1997 Monolithic Digital IC LB1997 Three-Phase Brushless Motor Driver for CD-ROM Spindle Drive Overview The LB1997 is a three-phase brushless motor driver especially suited for CD-ROM spindle motor drives.
Package Dimensions unit: mm 3222-HSOP28 [LB1997] 28 15 Functions 5.
6 1.
0 0.
2 Allowable power dissipation, Pd max – W • Current linear drive • Control V type amplifier • Separate power supply for output upper side bias circuit allows low output saturation by boosting this power supply only (useful for 5V power supply types).
• Upper side current detection technique reduces loss voltage of current detection resistor.
Voltage effect of this resistor reduces internal current drain of IC.
• Built-in short braking circuit • Built-in reverse blocking circuit • Hall FG output • Built-in S/S function • Built-in current limiter circuit • Built-in Hall power supply • Built-in thermal shutdown circuit • V type control/single-side control switching pin allows CLV and CAV operation.
1 0.
8 2.
7 0.
3 14 15.
2 0.
8 2.
0 Pd max – Ta 1.
6 1.
5 With substrate 1.
2 0.
8 IC only 0.
4 0.
6 0 –20 0 Ambient temperature, Ta – °C 20 40 0.
1 1.
8max SANYO : HSOP28 60 75 80 0.
5 7.
6 100 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 ...


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