6-channel Combo driver IC
BD7907FS
Description Dimension (Units : mm)
Features
Applications
01W138A
January, 2002
Absolute Maximum Ratings (Ta=25˚C)
SSOP-A54
0
.
1
1
1
.
4
–
0
.
2
1
3
.
4
–
0
.
3
2
.2
–
0
.1
0.10.8
1 27
54 28
22.0–0.2
4
.
0
–
0
.
2
6.0–0.2
0.36–0.1
0.15–0.1
0
.
3
M
in
.
Power MOS supply voltage
Pre/BTL power supply voltage
PWM control supply voltage
Power dissipation
Operating temperature range
Storage temperature range
Parameter Symbol Limits Unit
DVCC
VCC, SLVDD,
AVM
SPVM1,2,
SLRNF1,2
Pd
Topr
Tstg
15
15
7
2.6
+85–35 ~
+150–55 ~
˚C
˚C
V
V
V
W
*1
BD7907FS is a 6-channel driver IC that integrates all
drivers necessary for CD-ROM, and DVD-ROM systems
into a single chip. The built-in 2-channel sled motor
driver is used for the stepping motor. Low heat operation
can be achieved by applying the PWM driving system for
sled and spindle motor drivers.
1) Motor drivers for spindle, sled (2-channel) and
loading, and actuator drivers for tracking are all
integrated into a single chip.
2) ON/OFF for each driver, brake mode switching of
spindle and stand-by mode switching can be
controlled by 2-wire serial data.
3) Built-in triangular-wave generator
4) SSOP-A54 package
5) Built-in thermal shut-down circuit

6) Highly efficient by applying the PWM drive and
Low ON resistance POWER MOSFET
7) Built-in current limit, hall bias, short brake, FG 3-phase
synthesis output, and reverse protection circuit

8) Highly efficient due to the PWM drive
9) Built-in 2-channel for the stepping motor

10) Low noise due to the linear BTL driver and smooth spin
CD-ROM, DVD-ROM, and any other equipment driven by optical DISC
*Derating : 20.8mW/˚C for operation above Ta=25˚C PCB (70mm ¥ 70mm ¥ 1.6mm glass epoxy board)