LB1895D

Ordering number: EN5634 Monolithic Digital IC LB1895, 1895D 3-Phase Brushless Motor Driver for CD-ROM Spindle Motors Overview The LB1895 and LB1895D are 3-phase brushless motor drivers for use in CD-ROM spindle motors. Package Dimensions unit : mm 3222-HSOP28 [LB1895] Functions and Features . Current linear drive . V-type control amplifier built in . Because the power supply for the bias circuit on the upper . . . . . . output side is separate, output with low saturation can be attained by boosting only that power supply. (Effective when VCC = 5 V) Because current is detected on the upper side, there is no voltage loss due to the RF resistance. In addition, the RF voltage reduces the power dissipation within the IC. (Effective when VCC = 5 V) Start/Stop function built in Thermal shutdown circuit built in Overcurrent protection circuit built in Two-channel Hall signal comparator built in. (For detecting rotation direction and Hall FG output) Hall device bias built in 28 15 5.6 1.0 0.2 0.1 1 0.8 2.7 0.3 14 15.2 0.8 SANYO : HSOP28 unit : mm 3196-DIP30SD [LB1895D] SANYO : DIP30SD SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 4097HA(II) No.5634-1/12 1.8max 0.5 7.6 LB1895, 1895D Specifications Maximum Ratings at Ta = 25 °C Parameter Maximum supply voltage 1 Maximum supply voltage 2 Maximum supply voltage 3 Applied output voltage Applied input voltage Output current Allo...