Datasheet > BD7903FS

BD7903FS

更新时间： 2024-01-19 23:46:25

品牌	Logo	应用领域
罗姆 - ROHM		驱动器 DVD
页数	文件大小	规格书
16页	200K
描述
5CH Power Driver for CD-ROM, DVD-ROM

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BD7903FS 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	SSOP
包装说明：	SSOP-54	针数：	54
Reach Compliance Code：	compliant	风险等级：	5.84
驱动类型：	OPTICAL	接口集成电路类型：	CD MOTOR DRIVER
JESD-30 代码：	R-PDSO-G54	JESD-609代码：	e3/e2
长度：	22 mm	信道数量：	1
功能数量：	1	端子数量：	54
最高工作温度：	85 °C	最低工作温度：	-35 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	HSSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
座面最大高度：	2.4 mm	最大供电电压：	6 V
最小供电电压：	4.3 V	标称供电电压：	5 V
电源电压1-Nom：	12 V	表面贴装：	YES
温度等级：	OTHER	端子面层：	TIN/TIN COPPER
端子形式：	GULL WING	端子节距：	0.8 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	10
宽度：	11.4 mm

BD7903FS

Optical disc ICs

5CH Power Driver for

CD-ROM, DVD-ROM

BD7903FS

BD7903FS is a 5-channel driver IC that integrates all drivers necessary for CD-ROM, and DVD-ROM systems into a

single chip. Low noise, and low vibration can be achieved by applying the 180° PWM driving system for spindle motor

drivers. Current lag phase occurred by the load of the inductance can be reduced by using the current feedback linear

BTL system to driver the actuator.

!Applications

CD-ROM, DVD-ROM

!Features

1) 4channel BTL 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 4channels, brake mode 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 3-phase mixed signal output and reverse protection circuit.

• Low ON-Resistor. (RON=0.85Ω)

〈 Sled motor driver, Loading driver 〉

• Voltage feedback Linear BTL drive system.

〈 Actuator driver 〉

• Current feedback Linear BTL drive system.

• Current phase lag influenced load inductance is little, because this type is current feedback.

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