BA6665FM
Optical disc ICs
Motor driver for CD-ROMs
BA6665FM
The BA6665FM is a CD-ROM spindle motor driver supporting reverse-rotation preventing circuit. It incorporates power
save circuit, thermal shut down circuit, FG output, hall bias, etc. The 3-phasefall-wave pseudo linear driving system
achieves high-performance and multi-function.
zApplications
CD-ROM / RW, DVD-ROM
zFeatures
1) 3-phase, full-wave pseudo linear driving system
2) Built in power save
3) Built in thermal shut down circuit
4) Built in current limit circuit
5) Built in Hall Bias circuit
6) Built in FG-output ( 3 phase parallel output )
7) With switching function of regular / reverse rotations
zAbsolute maximum ratings (Ta=25°C)
Parameter Symbol Limits Unit
Supply voltage VCC
IOUT
7V
VSupply voltage VM 15
2200
∗
1
mWPower dissipation Pd
Topr −20~+75
˚C
˚C
Strage.temp.range
1300
∗
2
150
mA
Operate.temp.range
Maximum o.current
Juncition temp.
Tstg
Tjmax
−55~+150
˚C
∗1 Derating in done at 17.6mW / ˚C for operating above Ta=25˚C.
70mm×70mm×1.6mm glass epoxy board.
∗2 Do not, however exceed Pd, ASO and Tj=150˚C.
zRecommended operating conditions (Ta=25°C)
Parameter
Operating supply voltage
range
VCC 4.5 5.5−
VM 3.0 14.0
V
−
Symbol Min. Typ. Max. Unit