BD6665FM View Datasheet(PDF) - ROHM Semiconductor

Part Name

Description

Manufacturer

BD6665FM

Spindle motor driver IC for CD-ROM/RW

ROHM Semiconductor 

00W095A

Spindle motor driver IC for CD-ROM/RW

BD6665FM

Description

The BD6665FM has achieved high-efficiency and

low power consumption due to the adoption of

MOSFET output and direct PWM drive.

Power save circuit, current limit circuit, FG three-

phase synthesis output, hall bias, reverse protection

circuit, short brake SW, and rotation direction

detection terminal are incorporated. The result is a

multi-function and high-performance IC.

Features

1) Direct PWM drive

2) Built-in power save circuit

3) Built-in current limit circuit

4) Built-in FG three-phase synthesis output

5) Built-in hall bias

6) Built-in reverse protection circuit

7) Low power consumption due to MOSFET output

8) Built-in short brake SW

9) Built-in rotation direction detection terminal

Applications

CD-ROM/RW

Dimension (Units : mm)

18.5±0.2

28

15

1

5.15±0. 1

14

0.8

0.35±0. 1

0.3Min.

0. 15

HSOP-M28

Absolute Maximum Ratings (Ta=25˚C)

Parameter

Applied voltage (5V for power supply)

Applied voltage (for motor supply)

Power dissipation

Operating temperature range

Symbol

Vcc

VM

Pd

Topr

Storage temperature range

Tstg

Output current

IOMAX

∗1 Mounted on a glass epoxy board (70mm×70mm×1.6mm)

∗1 Derating:17.6mW/˚C for operation above Ta=25˚C.

∗2 Do not exceed Pd, ASO and Tj=150˚C.

Limits

7

15

2200 ∗1

–20 ~ +75

–55 ~ +150 ∗2

3000 *2

Unit

V

V

mW

˚C

˚C

mA

November, 2000

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