參數(shù)資料
型號: BD7907FS
廠商: Rohm CO.,LTD.
英文描述: 6-channel Combo driver IC
中文描述: 6通道組合驅(qū)動器IC
文件頁數(shù): 1/3頁
文件大?。?/td> 207K
代理商: BD7907FS
6-channel Combo driver IC
BD7907FS
Description
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.
Dimension (Units : mm)
Features
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
<
Spindle driver
>
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
<
Sled motor driver
>
8) Highly efficient due to the PWM drive
9) Built-in 2-channel for the stepping motor
<
Actuator, loading driver
>
10) Low noise due to the linear BTL driver and smooth spin
Applications
CD-ROM, DVD-ROM, and any other equipment driven by optical DISC
01W138A
January, 2002
Absolute Maximum Ratings
(Ta=25C)
SSOP-A54
0
1
±
0
1
±
0
2
±
0
0.1
0.8
1
27
54
28
22.0
±
0.2
4
±
0
6.0
±
0.2
0.36
±
0.1
0.15
±
0.1
0
Power MOS supply voltage
Pre/BTL power supply voltage
PWM control supply voltage
Power dissipation
Operating temperature range
Storage temperature range
*Derating : 20.8mW/C for operation above Ta=25C PCB (70mm ¥ 70mm ¥ 1.6mm glass epoxy board)
Parameter
Symbol
SPVM1,2,
SLRNF1,2
Limits
15
15
7
2.6
Unit
V
V
V
W
DVCC
Pd
Topr
Tstg
VCC, SLVDD,
AVM
+
85
+
150
–35
–55
~
~
C
C
*
1
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