LSI BH6526FV Actuator/motor driver for cd-rom Datasheet

03W005A
Actuator/Motor Driver for CD-ROM
BH6526FV
Description
Dimension (Units : mm)
BH6526FV is a 2channel PWM driver developed for
driving actuator and motor of CD-ROM. This IC has
achieved lower power consumption of the set by using
power MOS FET in output. Furthermore, using a small
SSOP-B16 package and reducing external parts can
achieve the size reduction.
1
8
4.4±0.2
9
0.65
0.22±0. 1
0.15±0. 1
1. 15±0.1
0. 1
6.4±0.3
5.0±0.2
16
0.3Min.
0. 1
Features
SSOP-B16
1) Lower power consumption of sets by adopting PWM system
2) Narrow dead band allows good play ability
3) Few external parts required
4) Small SSOP-B16 package
5) Power supply voltage : 5V
Pre-driver block : Vcc+1.7V~11.5V
Applications
CD-ROM, DVD-ROM, DVD
Absolute Maximum Ratings (Ta=25˚C)
Parameter
Symbol
Limits
Unit
Vcc
9
V
VG(15pin)
12
V
Driver output current
Io
800
Power dissipation
Pd
Power supply voltage
Pre-driver supply voltage
Operating temperature range
Topr
Tstg
Storage temperature range
∗Derating : 4.5mW/˚C for operation above Ta=25˚C
562.5
mA
∗
~ +85
—55
~ +150
—30
mW
˚C
˚C
On less than 3% (percentage occupied by copper foil), 70mmx70mm, t=1.6mm, glass epoxy mounting.
January, 2003
Recommended Operating Conditions (Ta=25˚C)
Parameter
Power supply voltage
Pre-driver supply voltage
Symbol
Min.
VCC
3.5
Typ.
VG (9pin) Vcc+1.7
Max.
Unit
5.0
5.5
10.0
11.5
V
V
Electrical characteristics
(Unless otherwise noted; Ta=25˚C, Vcc=5.0V, VG=10.0V, Vref=2.5V, RL=8Ω+47µH)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Current at no signal (Vcc)
Icc1
—
1.9
3.7
mA
Output offset voltage
V00
–50
0
50
mV
Voltage gain
GVC
12.0
14.0
16.0
dB
Output ON resistance
RON
1.0
1.7
2.4
Ω
Conditions
PWM driver
Sum (Top+Bottom)
Application Circuit
Charge
Pump
TRACKING
Vcc
5V
0.01µF 0.1µF
10V
16
15
14
13
20KΩ
1KΩ
12
11
10
DRI E
20KΩ
NFAmp
9
VG
PWM
SAW OSC
PWM
DRIVE
NFAmp
1KΩ
20KΩ
BH6526FV
20KΩ
1
2
220pF
3
4
5
0.01µF
FOCUS
TE VREF FE
Servo
IC
6
7
8
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