BD6669FV Datasheet, PDF (1/17 Pages) Rohm – 3Phase spindle motor driver for CD-ROM

Motor driver ICs
BD6669FV
3Phase spindle motor driver for CD-ROM
BD6669FV
BD6669FV is a 3-phase spindle motor driver adopting 180° PWM direct driving system. Noise occurred from the motor
driver when the disc is driven can be reduced. Low power consumption and low heat operation are achieved by using
DMOS FET and driving directly.
zApplications
CD-ROM
zFeatures
1) Direct-PWM-Linear driving system.
2) Built in power save circuit.
3) Built in current limit circuit.
4) Built in FG-output.
5) Built in hall bias circuit.
6) Built in reverse protection circuit.
7) Built in short brake circuit.
8) Low consumption by MOS-FET.
9) Built in capacitor for oscillator.
10) Built in rotation detect.
zAbsolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Power supply voltage
VCC
7
V
Supply voltage for motor
VM
7
V
VG pin voltage
Output current
Power dissipation
VG
IOMAX
Pd
20
V
1000 ^∗1
mA
1020 ^∗2
mW
Junction temperature
TjMAX
150
°C
Operating temperature range
Topr
−20 to +75
°C
Storage temperature range
Tstg
−55 to +150
°C
∗1 However, do not exceed Pd, ASO and Tj=150°C.
∗2 70mm×70mm×1.6mm glass epoxy board.
Reduce power by 8.16mW for each degree above 25°C.
zRecommended operating conditions
Parameter
Symbol Min. Typ. Max.
Power supply voltage
VCC
4.5
−
5.5
Supply voltage for motor
VM
VG pin voltage
VG
3
−
6.5
7.5
−
14
This product described in this specification isn't judged whether it applies to cocom regulations.
Please confirm in case of export.
This product is not designed for protection against radioactive rays.
Unit
V
V
V
Rev.A 1/16