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.
Applications
CD-ROM / RW, DVD-ROM
Features
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
Absolute maximum ratings
(Ta=25°C)
Parameter
Supply voltage
Supply voltage
Power dissipation
Operate.temp.range
Strage.temp.range
Juncition temp.
Maximum o.current
Symbol
V
CC
V
M
Pd
Topr
Tstg
Tjmax
I
OUT
Limits
7
15
2200
∗
1
−20~+75
−55~+150
150
1300
∗
2
Unit
V
V
mW
˚C
˚C
˚C
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.
Recommended operating conditions
(Ta=25°C)
Parameter
Operating supply voltage
range
Symbol
V
CC
V
M
Min.
4.5
3.0
Typ.
−
−
Max.
5.5
14.0
V
Unit
ROHM [ ROHM ]
