BA6665FM Datasheet, PDF (1/9 Pages) Rohm – Motor driver for CD-ROMs

Optical disc ICs
Motor driver for CD-ROMs
BA6665FM
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
7
V
Supply voltage
VM
15
V
Power dissipation
Pd
2200∗¹
mW
Operate.temp.range
Topr
−20~+75
˚C
Strage.temp.range
Tstg
−55~+150
˚C
Juncition temp.
Tjmax
150
˚C
Maximum o.current
IOUT
1300∗²
mA
70mm×70mm×1.6mm glass epoxy board.
∗1 Derating in done at 17.6mW / ˚C for operating above Ta=25˚C.
∗2 Do not, however exceed Pd, ASO and Tj=150˚C.
zRecommended operating conditions (Ta=25°C)
Parameter
Symbol Min. Typ. Max.
Unit
Operating supply voltage
VCC
4.5
−
5.5
range
VM
3.0
−
14.0
V