LB1913

Ordering number : EN5503 Monolithic Integrated IC LB1913 FDD Spindle Motor Driver Overview The LB1913 is a three-phase disk drive motor driver IC that is optimal for use as a 3.5-inch floppy disk drive spindle motor driver. Package Dimensions unit: mm 3222-HSOP28 [LB1913] Functions and Features Three-phase full-wave linear drive On-chip digital speed control Start and stop circuits (active low) Speed switching High: 300 rpm, Low: 360 rpm Current limiter circuit Index comparator circuit Index delay circuit Thermal protection circuit SANYO: HSOP28 Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Maximum output current Maximum steady-state output current Allowable power dissipation Operating temperature Storage temperature Symbol VCC max IO max1 IO max2 Pd max Topr Tstg Independent IC t ≤ 0.5 s Conditions Ratings 7.0 1.0 0.7 0.5 –20 to +80 –40 to +150 Unit V A A W °C °C Allowable Operating Ranges at Ta = 25°C Parameter Recommended supply voltage Symbol VCC Conditions Ratings 4.2 to 6.5 Unit V SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 83196HA (0T) No. 5503-1/6 LB1913 Electrical Characteristics at Ta = 25°C, VCC = 5.0 V Parameter Symbol ICCO ICC ISL VSLL VSLH IS/S VS/SL VS/SH IHB Vh Vdif VH IHL Vsat IOL Vlim GC ∆GC I+ I– I+/I– IDSC ∆Vsh N FD FOSC VIDL IIDL GFG VFGO VFGB ∆VSH ∆VID VID TSD ∆TSD * * * * 1.0 150 180 40 2.2 2.5 50 20...