BD7905BFS Datasheet PDF - Rohm 6CH Power Driver for CD-ROM/ DVD-ROM Specs

BD7905BFS - 6CH Power Driver for CD-ROM/ DVD-ROM

Datasheet Summary

Description

Pin No.

HV+ HV HW+ HW

HB PGND1 U SPVM1 V GND GND GND GND GND PGND2 W SPVM2 SPRNF FG CTL1 CTL2 SPIN DGND LDIN VC Function Hall amp.

U positive input Hall amp.

U negative input Hall amp.

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.

Datasheet Details

Part number	BD7905BFS
Manufacturer	ROHM
File Size	202.65 KB
Description	6CH Power Driver for CD-ROM/ DVD-ROM
Datasheet	BD7905BFS Datasheet
Additional preview pages of the BD7905BFS datasheet.

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Full PDF Text Transcription

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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.

Published: Mar 23, 2005 |