LB1895 Datasheet, PDF (1/12 Pages) Sanyo Semicon Device – 3-Phase Brushless Motor Driver for CD-ROM Spindle Motors

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
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 V_CC = 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
1
0.8
unit : mm
3196-DIP30SD
[LB1895]
15
14
2.7
0.3
0.2
15.2
0.8
SANYO : HSOP28
[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