LB1674V

Ordering number: EN4392A Monolithic Digital IC LB1674V Brushless, Sensorless Motor Driver Overview The LB1674V is a small motor driver ideal for mini-cassettes, headphone stereos and micro-cassettes. Package Dimensions unit : mm 3175A-SSOP24 [LB1674V] Functions and Features c c c c c 3-phase unipolar, brushless, sensorless motor driver Reverse function Built-in speed control function (V servo) Built-in reference voltage (0.5 V) Soft switching driver SANYO : SSOP24 Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Output transistor withstand voltage Maximum output current Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Vsus Im max Pd max Topr Tstg Tj = 125°C Conditions Ratings 5 10 0.6 0.4 0 to + 80 –40 to + 125 Unit V V A W °C °C Allowable Operating Range at Ta = 25°C Parameter Supply voltage Symbol VCC Conditions Ratings 1.0 to 3.5 Unit V SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 83096HA(II)/90793TS No.4392-1/6 LB1674V Electrical Characteristics at Ta = 25°C, VCC = 1.5 V, unless otherwise noted Parameter Supply current Reference voltage Symbol ICC START pin: high START pin: low 0.47 Conditions min typ 6.5 0 0.50 1 –0.2 –0.06 0.01 140 –5 155 170 +5 3 max 10 10 0.53 1.5 Unit mA µA V %/V mV/µA %/°C mV % %/V %/°C 100 0.27 45 0.25 0.3 65 mV ms µA V V V µA Vref ∆Vref Reference-voltage characteristic / ∆VCC...