LB1991V

Ordering number : EN5792 Monolithic Digital IC LB1991V Three-Phase Brushless Motor Driver for Portable VCR Capstan Motors Overview The LB1991V is a 3-phase brushless motor driver IC that is optimal for driving the capstan motor in portable VCR products. Speed control technique based on motor voltage and current control. Built-in FG comparators Built-in thermal shutdown circuit Functions 3-phase full-wave voltage drive technique (120° voltage-linear technique) Torque ripple correction circuit (overlap correction) Package Dimensions unit: mm 3175A-SSOP24 [LB1991V] Allowable power dissipation, Pd max — W SANYO: SSOP24 Ambient temperature, Ta — °C Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Symbol VCC1 max Maximum supply voltage VCC2 max VS max Applied output voltage Maximum output current Allowable power dissipation Operating temperature Storage temperature VO max IO max Pd max Topr Tstg Independent IC Conditions Ratings 10 11 11 VS + 2 1.0 440 –20 to +75 –55 to +150 Unit V V V V A mW °C °C Allowable Operating Ranges at Ta = 25°C Parameter Symbol VCC1 Supply voltage VCC2 VS Hall input amplitude VHALL Between Hall effect element inputs VCC1 ≤ VCC2 Conditions Ratings 2.7 to 6.0 3.5 to 9.0 Up to VCC2 ±20 to ±80 Unit V V V mVp-p SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 53098RM (OT) No. 5792-1/7 LB1991V Electrical Characteristics at Ta = 25°C, VC...