LB1971V

Ordering number :ENN6214A Monolithic Digital IC LB1971V Three-Phase Full-Wave Sensorless CD and MD Players Spindle Motor Driver Overview The LB1971V is a bipolar sensorless motor driver that provides a reverse torque braking function and is appropriate for use as the spindle motor driver in CD and MD players. Since the LB1971V can drive motors without the use of Hall elements, this device can contribute to miniaturization, thinner form factors, and lower power dissipation in end products. Package Dimensions unit: mm 3175A-SSOP24 [LB1971V] 24 13 1.0 5.6 0.1 0.43 1.6max 0.15 Functions and Features Three-phase bipolar sensorless drive Soft switching drive technique Reverse torque braking Standby mode power saving function FG outputs Can be operated from a 3-V supply. Thermal protection circuit 1 8.0 12 0.22 0.65 SANYO: SSOP24 Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage 1 Maximum supply voltage 2 Maximum output circuit supply voltage Maximum output current Allowable power dissipation Operating temperature Storage temperature Symbol VCC1max VCC2max VS max IO max Pdmax Topr Tstg Conditions Ratings 7.0 7.0 7.0 700 0.4 –20 to +75 –55 to +150 Unit V V V mA W °C °C 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 ...