BD7998EFS-E2 Rohm Semiconductor, BD7998EFS-E2 Datasheet

BD7998EFS-E2

Manufacturer Part Number

BD7998EFS-E2

Description

IC PWR DVR CD/DVD-ROM 44HTSSOP

Manufacturer

Rohm Semiconductor

Type

Motor Controlr

Datasheets

1.BD7998EFS-E2.pdf (4 pages)

2.BD7998EFS-E2.pdf (5 pages)

Specifications of BD7998EFS-E2

Applications

CD/CD-ROM Driver

Mounting Type

Surface Mount

Package / Case

24-TSSOP Exposed Pad, 24-eTSSOP, 24-HTSSOP

Operating Supply Voltage

5 V

Mounting Style

SMD/SMT

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current page: 1 of 4
Download datasheet (172Kb)

This product isn’t designed for protection against radioactive rays.

○Absolute maximum ratings

○Recommended operating conditions (Ta=-40～+85℃)

Structure

Product series

Type

Function

特

POWER MOS power supply voltage

Preblock/BTL powerblock power supply voltage

PWM control block power supply voltage

Power dissipation

Operating temperature range

Storage temperature

Joint part temperature

Spindle driver powerblock Power supply voltage

Sled motor driver powerblock Power supply voltage

Preblock / Loading driver powerblock Power supply voltage

Actuator driver powerblock Power supply voltage

PWM control block power supply voltage

Spindle driver output current

Actuator/sled motor/loading motor driver output current

〔Set the power supply voltage taking allowable dissipation into considering〕

長

#1 POWER MOS output terminals (17～20, 30, 33, 35pin) is contained.

#2 PCB (70mm×70mm×1.6mm,occupied copper foil is less than 3%,glass epoxy standard board) mounting.

Reduce power by 16mW for each degree above 25℃.

#3 Set the same supply voltage to SPVM,SLVM and Vcc.

#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

Parameter

Silicon Monolithic Integrated Circuit

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

BD7998EFS

・The spindle driver and the SLED driver can highly effective drive with PWM

・The actuator driver and the loading driver are liner BTL drive system and are

drive system.

achieving a low noise power.

REV. A

Vcc=SLV

SLV

SLRNF1,2

SPVM1,2

Symbol

Tjmax

SPVM

SLVM

DVcc

AVM

Topr

Tstg

Iosp

Ioo

=Vcc

,AVM

MIN

AVM

4.3

－

-55～150

-40～85

Limits

2.0

Vcc

TYP

150

5.0

1.2

0.5

＃

MAX

2.5

Vcc

6.0

0.8

－

Unit

℃

1/3

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BD7998EFS-E2 Summary of contents

Page 1

... This product isn’t designed for protection against radioactive rays. Silicon Monolithic Integrated Circuit 6ch Power Driver for CD-ROM,DVD-ROM BD7998EFS ・The spindle driver and the SLED driver can highly effective drive with PWM drive system. ・The actuator driver and the loading driver are liner BTL drive system and are achieving a low noise power ...

Page 2

Parameter Quiescent current1 Quiescent current2 Circuit current Quiescent current3 Standby-on current1 Standby-on current2 Input dead zone (one side) Input output gain Sled driver Output On resistor（top and bottom） block Output limit current PWM frequency Input dead zone (one ...

Page 3

Application circuit TKIN FCIN LDIN SLIN1 LIMIT SLIN2 LIMIT REVERSE DETECT 5V 100kΩ SPIN Current LIMIT VC CTL1 STBY/ BRAKE CTL2 CONTROL LEVEL SHIFT LEVEL SHIFT LEVEL SHIFT PRE FF Logic OSC PRE FF Logic ...

Page 4

Appendix No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product ...

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