BD7902 데이터 시트보기 (PDF) - Unspecified

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BD7902

6CH Power Driver for CD-ROM, DVD-ROM

Unspecified 

Optical disc ICs

!Absolute maximum ratings (Ta=25°C)

Parameter

Symbol

Limits

Unit

POWER MOS

power suuply voltage

SPVM1,2,SLRNF1,2

15∗1

V

Preblock/BTL powerblock

power supply voltage

VCC,SLVDD,AVM

15

V

PWM control block

power supply voltage

DVCC

7

V

Power dissipation

Pd

2.6∗2

W

Operating temperature range

Topr

−35~+85

°C

Storage temperature

Tstg

−55~+150

°C

∗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.

BD7902CFS

!Recommended operating conditions (Ta=25°C)

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

Parameter

Symbol

Min.

Typ.

Max.

Unit

POWER MOS Power supply voltage 1

SPVM1, 2

−

VCC∗3

−

V

POWER MOS Power supply voltage 2

SLRNF1, 2

−

SLVDD∗3

−

V

Preblock Power supply voltage

SLVDD, VCC AVM

12

14

V

Power block Power supply voltage

AVM

4.3

5.0

VCC

V

PWM control block Power supply voltage

DVCC

4.3

5.0

6.0

V

Spindle output current

Iosp

−

1.2

2.5∗4

A

SL/FO/TR/LO output current

Ioo

−

0.5

0.8

A

∗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

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