BD7905BFS

更新时间： 2024-01-20 03:15:20

品牌	Logo	应用领域
罗姆 - ROHM		驱动器 DVD
页数	文件大小	规格书
18页	202K
描述
6CH Power Driver for CD-ROM, DVD-ROM

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BD7905BFS 数据手册

BD7905BFS

Optical disc ICs

6CH Power Driver for

CD-ROM, DVD-ROM

BD7905BFS

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.

!Applications

CD-ROM, DVD-ROM

!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.

〈 Spindle driver 〉

• Efficient drive by current feedback 180deg PWM drive.

• Built in current limit, hall bias, short brake, FG 3-phase mixed signal output and reverse protection circuit.

• Low ON-Resistor. (RON=0.85Ω)

〈 Sled motor driver 〉

• Efficient drive by current feedback PWM drive.

• Built in 2channel for stepping motor.

〈 Actuator driver, Loading driver 〉

• Linear BTL drive system.

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