Datasheet > BD7902CFS-E2

BD7902CFS-E2

更新时间： 2024-02-29 02:44:05

品牌	Logo	应用领域
罗姆 - ROHM		光电二极管
页数	文件大小	规格书
17页	190K
描述
Motion Control Electronic, BIPolar, PDSO54,

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BD7902CFS-E2 技术参数

BD7902CFS

Optical disc ICs

6CH Power Driver for

CD-ROM, DVD-ROM

BD7902CFS

BD7902CFS 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.

!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 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 PWM drive.

• Built in current limit, hall bias, short brake, FG output and reverse protection circuit.

• Low ON-Resistor. (RON=0.95Ω)

〈 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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