BD7905BFS

更新时间： 2024-02-21 20:58:27

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

!Electrical characteristics

(unless otherwise noted, Ta=25°C, SLV^DD=VCC=12V, DVCC=AVM=5V, VC=1.65V, SPRNF=0.22Ω, SLRNF=0.5Ω)

Parameter

Symbol

Min.

Typ.

Max.

Unit

Conditions

Circuit

Circuit current

Quiescent current 1

Quiescent current 2

Quiescent current 3

Stanby-on current 1

Stanby-on current 2

Sled driver block

IQ1

IQ2

−

CC (Loading OFF)

CC (Loading ON)

Fig1, 2

IQ3

2.5

−

4.5

0.1

0.4

DV^CC

IST1

IST2

VCC

0.2

DVCC

Input dead zone (one side)

Input output gain

VDZSL

gmSL

1.3

(0.65)

1.6

(0.8)

A/V

(V/V)

Fig1, 2

1.0

(0.50)

SLRNF=0.5Ω

IL=500mA

−

1.8

2.3

Ω

Output ON resistor (upper)

Output ON resistor (lower)

Output limit current

PWM frequency

RONUSL

RONLSL

ILIMSL

fosc

−

0.8

1.0

(0.50)

1.4

1.16

(0.58)

Ω

(V)

IL=−500mA

SLRNF=0.5Ω

0.84

(0.42)

−

100

−

kHz

Spindle driver block 〈 Hall bias 〉

0.7

1.15

1.6

Hall bias voltage

VHB

IHB=10mA

Fig1, 2

Spindle driver block 〈 Hall amplifier 〉

−

100

−

µA

mV^PP

Input bias current

Input level

IHIB

Fig1, 2

VHIM

Common mode input Range

VHICM

Spindle driver block 〈 Torque control 〉

Input dead zone 1 (one side) VDZSP1

Input dead zone 2 (one side) VDZSP2

CTL1="H", CTL2="H"

CTL1="L", CTL2="H"

Fig1, 2

1.5

120

1.8

Arms/V

1.2

(0.264)

170

Effective current

Input output gain 1

gmSP1

gmSP2

RONUSP

RONLSP

ILIMSP1

ILIMSP2

fosc

(0.33) (0.396) (Vrms/V)

CTL1="H", CTL2="H"

mArms/V

Effective current

245

(53.9)

320

(70.4) (mVrms/V)

Input output gain 2

(37.4)

CTL1="L", CTL2="H"

IL=500mA

−

0.6

1.0

Ω

Output ON resistor (upper)

Output ON resistor (lower)

Output limit current 1

Output limit current 2

PWM frequency

−

0.25

1.5

0.5

1.8

Ω

IL=−500mA

1.2

(0.264)

300

CTL1="H", CTL2="H"

CTL1="L", CTL2="H"

(0.33) (0.396)

(V)

440

580

(mV)

(66.0)

(96.8) (127.6)

−

100

−

kHz

Spindle driver block 〈 FG output 〉

−

4.9

0.1

−

High voltage

VFGH

Fig1, 2

Low voltage

VFGL

Actuator driver block

Output offset voltage

−70

−

0.8

VOFFT

Fig1, 2

0.45

19.5

IL=500mA

Output saturation voltage "H" VOHFT

−

IL=−500mA

0.8

Output saturation voltage "L"

Voltage gain

VOLFT

GVFT

17.7

21.3

This product is not designed for protection against redioactive rays.

6/17

1...3 4 567 8 9...18

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