99W156A
3-phase Motor Driver for DVD-ROM Spindle Motors
BD6663FM
Description
The BD6663FM is a motor driver developed for
high-speed CD-ROM and DVD-ROM applications
that requires low power consumption and low
heating. This is accomplished by applying PMOS
Tr/DMOS Tr to Tr output and PWM operation.
Dimension
(Units : mm)
Features
1) Direct PWM driver
2) Built-in power saving circuit
3) Built-in current limit circuit
4) Built-in FG output
5) Built-in Hall bias
6) Built-in reverse protection circuit
7) Low power consumption by MOSFET
8) Built-in short brake SW pin
9) Built-in rotation direction detect terminal
HSOP-M28
Applications
DVD-ROM, DVD-RAM, CD-ROM, CD-R • RW
Absolute Maximum Ratings
(Ta=25˚C)
Parameter
Supply voltage
(For 5V voltage source)
Supply voltage
(For motor voltage source)
Power dissipation
Operating temperature range
Storage temperature range
Output current
Symbol
V
CC
V
M
Pd
Topr
Tstg
I
OMAX
–20
–55
Limits
7
15
2200
~
~
2000
*1
Unit
V
V
mW
˚C
*2
+75
+150
*2
˚C
mA
*
1 Derating : 17.6mW/˚C for operation above Ta=25˚C
Mounting on 70mm
¥
70mm
¥
1.6mm glass epoxy board.
*
2 Do not, however exceed Pd, ASO and Tj=150˚C.
Recommended Operating Conditions
(Ta=25˚C)
Parameter
Operating supply voltage range
Symbol
V
CC
V
M
Min.
4.5
3
Typ.
—
—
Max.
5.5
14
Unit
V
V
January, 2000
Electrical characteristics
(Unless otherwise noted, Ta=25˚C, Vcc=5V, V
M
=12V)
Parameter
<Total>
Circuit current 1
Circuit current 2
<POWER SAVE>
ON voltage range
OFFvoltge range
<Short brake SW>
ON voltage range
OFF voltage range
<Output>
Output ON resistance
Torque limit voltage
R
ON
V
TL
—
—
0.6
0.20
0.9
—
Ω
V
Io=±600mA (Upper+Lower)
R
NF
=0.33Ω
V
SBON
V
SBOFF
2.5
—
—
—
—
1.0
V
V
Short brake
V
PSON
V
PSOFF
—
2.5
—
—
1.0
—
V
V
Stand-by mode
Icc1
Icc2
—
—
—
7.5
0.2
—
mA
mA
Stand-by mode
Symbol
Min.
Typ.
Max.
Unit
Conditions
Block Diagram
嵌入式系统
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