BH6552FV
Optical Discs
1/3
Voltage controller for CD-ROM
BH6552FV
BH6552FV is a voltage controller developed for CD-ROM. This IC incorporates 3.3V output DC/DC converter and reset
circuit into a single chip.
Features
< 3.3V DC / DC converter >
Intended for low drain current by adopting sync
rectification type.
Power MOS Tr is contained.
3.3V DC/DC converter reduces variation through laser
trimming (3.3V
2%).
Built-in mute function.
< Reset circuit >
Source voltage Reset reduces variation through laser
trimming (3.7V
2%).
Applications
CD, DVD
External dimensions
(Units : mm)
SSOP-B16
9
8
16
1
0.1
6.4
0.3
4.4
0.2
5.0
0.2
0.15
0.1
0.22
0.1
0.65
1.15
0.1
0.3Min.
0.1
Absolute maximum ratings
(Ta=25
C
Parameter
Control circuit power supply voltage
Pre driver power supply voltage
DSW output current
Power dissipation
Symbol
PowV
CC
PreV
CC
VG(9pin)
Iomax
Pd
Limits
9
9
12
1
560
-
30~
+
85
-
55~
+
150
Unit
V
V
V
A
mW
C
C
Operating temperature range
Storage temperature range
Topr
Tstg
2
1
Power MOS supply voltage
2
glass epoxy mounting.Reduce power by 4.5mW for each degree above 25
C.
On less than 3%(percentage occupied by copper foil), 70mm
70mm, t=1.6mm,
1 Switching current of maximum time 5msec and duty is below 1/10.
Recommended operating conditions
(Ta=25
C
Parameter
Power MOS supply voltage
Control circuit power supply voltage
Pre driver power supply voltage
Symbol
PowV
CC
PreV
CC
VG(9pin)
Unit
V
V
V
Min.
Typ.
Max.
4.5
4.5
8.0
5.0
5.0
10.0
5.5
5.5
11.5
Atmosphere temperature range
Ta
-
10
25
70
C
In case of being supplied external voltage source.
BH6552FV
Optical Discs
2/3
Electric characteristics
(Unless specified particularly Ta=25
C, PREVcc=5V)
Parameter
Symbol
Current in stanby mode
Quiescent current
VG quiescent current
<
3.3V DC/DC converter
>
EI terminal threshold voltage
SOFT terminal output voltage
SOFT terminal source current
DSW terminal ON resistor H
DSW terminal oscillation frequency
DSW terminal minimum pulse width
VDD terminal threshold voltage
DSW terminal ON resistor L
SOFT terminal impedance
I
ST
Min.
Typ.
Max.
Conditions
-
-
-
1.70
6.5
-
310
410
3.77
90.0
0.32
3.70
30.0
-
-
-
0.87
170
290
CE
=
0V
I
CC
1.45
2.60
80
160
I
CG
V
EITH
1.25
1.31
V
SOFT
2.40
3.10
I
SOFT
9.5
12.5
R
SOFT
192
253
314
R
DSWONH
R
DSWONL
f
DSW
210
310
410
V
DCO
3.24
3.30
3.36
Output voltage
V
G
7.7
9.7
11.7
f
OSC
210
V
RSTON
3.63
V
RSTHYS
60.0
V
RSTO
0.16
This product is not designed for protection against radioactive rays.
1.19
0.42
IL
=
500mA
IL
=-
500mA
0.30
0.60
t
DSWMIN
0.01
0.50
Unit
A
A
A
mA
V
V
V
V
kH
Z
V
V
mV
k
kH
Z
V
sec
<
Charge pump
>
In action
VG drop mute
V
GM
5.0
6.0
7.0
free-running oscillation frequency
Reset monitor circuit
V
CC
reset ON voltage
V
CC
reset output voltage
V
CC
reset hysteresis width
IL
=
1mA,PREV
CC
=
3.5V
Appendix
Appendix1-Rev1.0
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document use silicon as a basic material.
Products listed in this document are no antiradiation design.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
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