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MFG:ROHM  Package Cooled:SOP  D/C:04+  

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Part Number: BD7905BFS

 

MFG: ROHM

Package Cooled: SOP

D/C: 04+

Description: BD7905BFS is a 6-channel driver IC that integrates all drivers necessary for optical disc driver. Low vibration, low no...


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BD7905BFS General Description


BD7905BFS is a 6-channel driver IC that integrates all drivers necessary for optical disc driver. Low vibration, low noise, and low heat operation have been realized by adopting 180° PWM driving system for spindle motor driver. The built-in 2-channel sled motor driver is used for the stepping motor. 
 

BD7905BFS Maximum Ratings

Parameter Symbol Limits Unit
POWER MOS
power suuply voltage		 SPVM1,2,SLRNF1,2 15 *1 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 *2
 W
Operating temperature Topr 40 ~ +85  
Storage temperature Tastg 55 ~ +150  

BD7905BFS Features

1) 3channel BTL driver, 2channel PWM driver and 3phase motor driver.
    - ALL of the motor and actuator for CD-ROM, DVD-ROM etc.
2) These mode is able to be selected by the two control terminals.
    - ON/OFF of loading, and other 5channels, brake mode and gain select of spindle driver and standby mode.
3) Built-in triangular-wave generator.
4) Package SSOP-A54 has large power dissipation.
5) Built in thermal-shut-down circuit. 

BD7905BFS Typical Application

CD-ROM, DVD-ROM 
 

BD7905BFS datasheet

BD7905BFS
PDF/DataSheet Download

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