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MFG:ROHM+  Package Cooled:SSOP  D/C:2003+  

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Part Number: BD7907FS

 

MFG: ROHM+

Package Cooled: SSOP

D/C: 2003+

Description: BD7907FS is a 6-channel driver IC that integrates all drivers necessary for CD-ROM, and DVD-ROM systems into a single c...


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BD7907FS General 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.    

BD7907FS Maximum Ratings

Parameter Symbol Limits Unit
POWER MOS
power suuply voltage		 SPVM1,2,SLRNF1,2 15 V
Preblock/BTL powerblock
power supply voltage		 VCC,SLVDD,AVM 15 V
PWM control block
power supply voltage		  DVCC  7 V
Power dissipation Pd 2.6 *1
 W
Operating temperature Topr 35 ~ +85  
Storage temperature Tastg 55 ~ +150  

*Derating : 20.8mW/ for operation above Ta=25?C   PCB (70mm 70mm 1.6mm glass epoxy board)

BD7907FS 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

BD7907FS Typical Application

CD-ROM, DVD-ROM, and any other equipment driven by optical DISC

BD7907FS datasheet

BD7907FS
PDF/DataSheet Download

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