Ordering number : EN8791
www.
DataSheet4U.
com
LB11889M
Overview
Monolithic Digital IC
For VCR Capstan
Three-Phase Brushless Motor Driver
The LB11889M is three-phase brushless motor driver for VCR capstan motors.
Features
• 3-phase full-wave current linear drive.
• Torque ripple correction circuit (fixed correction ratio).
• Current limiter circuit with control characteristics gain switching.
• Output stage upper/lower oversaturation prevention circuit (No external capacitor required).
• FG amplifier built in.
• Thermal shutdown circuit built in.
Absolute Maximum Ratings at Ta = 25°C
Parameter Maximum power supply
voltage Symbol VCC max VS max Maximum output current Allowable power diss...