BD7905BFS

更新时间： 2024-01-23 10:27:49

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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数据手册

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BD7905BFS 数据手册

BD7905BFS

Optical disc ICs

!Absolute maximum ratings (Ta=25°C)

Parameter

Symbol

Unit

Limits

POWER MOS

power suuply voltage

∗

SPV

M1,2,SLRNF1,2

Preblock/BTL powerblock

power supply voltage

CC,SLVDD,AV

PWM control block

power supply voltage

DVCC

∗2

2.6

Power dissipation

°C

Operating temperature range

Storage temperature

Topr

Tstg

−40~+85

−55~+150

∗1 POWER MOS output terminals (9, 11, 18, 34~37pin) is contained.

∗2 PCB (70mm×70mm×1.6mm glass epoxy) mounting.

Reduced by 20.8mW for each increase in Ta of 1°C over 25°C.

!Recommended operating conditions (Ta=25°C)

(Set the power supply voltage taking allowable dissipation into considering)

Parameter

Symbol

SPV 1, 2

Min.

−

Typ.

Max.

Unit

∗3

VCC

−

POWER MOS Power supply voltage 1

POWER MOS Power supply voltage 2

Preblock Power supply voltage

Power block Power supply voltage

PWM control block Power supply voltage

Spindle output current

∗3

SLRNF1, 2

SLV^DD, VCC

−

SLV^DD

AVM

4.3

−

5.0

DV^CC

Iosp

Ioo

5.0

6.0

2.5^∗4

0.8

1.2

−

0.5

SL/FO/TR/LO output current

∗3 Set the same supply voltage to VCC and SPVM1, 2 to SLVDD and SLRNF1, 2.

∗4 The current is guaranteed 3.0A in case of the current is turned on/off in a duty-ratio of

less than 1/10 with a maximum on-time of 5msec.

2/17

123 4 5 6 7...18

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