Ordering number : ENN*6231 LB11997H Monolithic Digital IC LB11997H Three-Phase Brushless Motor Driver for CD-ROM Spindle Drive Preliminary Overview The LB11997H is a 3-phase brushless motor driver especially suited for CD-ROM spindle motor drives.
Package Dimensions unit: mm 3234-HSOP28H-C [LB11997H] 15.
3 28 15 • 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 drop caused by this resistor reduces internal power dissipation of IC.
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