01W020A
Power controller+4-channel PWM driver
for portable CD
BH6570KV
Description
Dimension (Units : mm)
BH6570KV incorporates 4-channel DC/DC converter,
1-channel series regulator and 4-channel PWM drivers
on a single chip for a portable CD. Four lines for external
power supply are able to drive efficiently and to reduce
9.0鹵0.3
7.0鹵0.2
power consumption in the set. In addition, due to the small
36
25
VQFP48C package, the size of the set can be reduced.
37
9.0鹵0.3
7.0鹵0.2
24
13
0.5
0.125鹵0.1
Features
1) Low power consumption
2) Low ON resistance
3) VQFP48C package
<Power control>
- Step-up DC/DC converter for micro controller
- Main step-up/step-down DC/DC converter
- Sub step-up DC/DC converter
- VG step-up circuit for power MOS driving
- Built-in ripple filter
- Built-in series regulator circuit
<Driver>
- Built-in 4-channel H bridge driver using power MOS
- Digital input available
- Direct PWM driving
Applications
Portable CD
Absolute Maximum Ratings
(
Ta=25擄C)
Parameter
Bteyspl vlae
atr upy otg
Sse spl vlae
ytm upy otg
A aatrvlae
C dpe otg
Pwrdsiain
oe ispto
Oeaigtmeauerne
prtn eprtr ag
Symbol
PVcc1
SVCC
PVcc2
Pd
Topr
鈥?
0
Limits
7
7
18
*
10
7
Unit
V
V
V
48
1
12
1.4鹵0.1
0.1
0.5
0.2鹵0.1
0.1
VF4C
QP8
Soaetmeauerne
trg eprtr ag
鈥?
5
Tstg
+1
0
5
*
Derating : 9.5mW/擄C for operation above Ta=25擄C
*PCB
(70mmx70mm, t=1.6mm) glass epoxy mounting.
~
~
+8
5
mW
擄C
擄C
Recommended Operating Conditions (Ta=25擄C)
Parameter
Bteyspl vlae
atr upy otg
Sse spl vlae
ytm upy otg
AC
aatrspl vlae
dpe upy otg
Abnettmeaue
mein eprtr
Symbol
PVcc1
SVcc
PVcc2
Ta
Min.
15
.
20
.
20
.
鈥?
0
Typ.
24
.
25
.
45
.
2
5
Max.
45
.
45
.
65
.
7
0
Unit
V
V
V
擄C
May, 2001
1
2
