BH6559FV
Optical discs
DC/DC converter for CD/DVD-ROM slim
BH6559FV
BH6559FV is an IC that incorporates 1 channel variable DC/DC converter and reset function. Variable DC/DC converter
can set high-precision voltage (鹵2% precision) by trimming reference voltage.
!
Applications
CD/DCD-ROM slim
!
External dimensions
(Units : mm)
5.0
鹵
0.2
!
Features
1) Low current consumption by adopting synchronous
rectifier type.
2) Few external components reduced by the built-in power
MOS transistor.
3) Adjustable by external resistor of DC/DC converter output.
4) Built-in reset for supply voltage and ATAPI
(output pin is common).
5) Built-in delay time setting function for supply voltage reset.
16
9
1.15
鹵
0.1 6.4
鹵
0.3
0.1
4.4
鹵
0.2
1
8
0.15
鹵
0.1
0.65
0.1
0.22
鹵
0.1
SSOP-B16
!
Absolute maximum ratings
(Ta=25擄C)
Parameter
Supply voltage 1 (PRE block)
Supply voltage 2 (PRE block)
Supply voltage
(PRE block)
Pin output current (DSW block)
Power dissipation
Operating temperature range
Storage temperature range
Symbol
PREV
CC
1
PREV
CC
2
POWV
CC
Iswomax
Pd
Topr
Tstg
Limits
7
7
7
1
鈭?
Unit
V
V
V
A
W
C
C
0.56
鈭?
鈭?0
to
+85
鈭?5
to
+150
鈭?
Intermittent current at maximum applied time of 5msec,1/10 duty (Max.)
鈭?
Derating : 4.5mv/ C for operation above Ta=25 C. On less than 3% (percentage occupied by copper foil),
70mm 70mm, t=1.6mm, glass epoxy mounting.
0.3Min.
+
1/3
1
2
3
4
