BH6552FV
Optical Discs
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%).
External dimensions
(Units : mm)
5.0±0.2
16
9
6.4±0.3
4.4±0.2
1
8
1.15±0.1
0.1
0.15±0.1
0.1
0.65
0.22±0.1
SSOP-B16
Applications
CD, DVD
Absolute maximum ratings
(Ta=25°C）
Parameter
Symbol
PowV
CC
PreV
CC
VG(9pin)
Iomax
Pd
Topr
Tstg
Limits
9
9
12
1
560
∗1
∗2
Unit
V
V
V
A
mW
°C
°C
Power MOS supply voltage
Control circuit power supply voltage
Pre driver power supply voltage
DSW output current
Power dissipation
Operating temperature range
Storage temperature range
−30~+85
−55~+150
∗1
Switching current of maximum time 5msec and duty is below 1/10.
∗2
On less than 3%(percentage occupied by copper foil), 70mm×70mm, t=1.6mm,
glass epoxy mounting.Reduce power by 4.5mW for each degree above 25°C.
Recommended operating conditions
(Ta=25°C）
Parameter
Power MOS supply voltage
Control circuit power supply voltage
Pre driver power supply voltage
Atmosphere temperature range
∗
Symbol
PowV
CC
PreV
CC
VG(9pin)
Ta
Min.
4.5
4.5
8.0
−10
Typ.
5.0
5.0
10.0
25
Max.
5.5
5.5
11.5
70
Unit
V
V
V
°C
∗
In case of being supplied external voltage source.
0.3Min.
1/3
BH6552FV
Optical Discs
Electric characteristics
(Unless specified particularly Ta=25°C, PREVcc=5V)
Parameter
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
SOFT terminal impedance
DSW terminal ON resistor H
DSW terminal ON resistor L
DSW terminal oscillation frequency
DSW terminal minimum pulse width
VDD terminal threshold voltage
<
Charge pump
>
Output voltage
VG drop mute
free-running oscillation frequency
Reset monitor circuit
V
CC
reset ON voltage
V
CC
reset hysteresis width
V
CC
reset output voltage
V
RSTON
V
RSTHYS
V
RSTO
3.63
30.0
−
3.70
60.0
0.16
3.77
90.0
0.32
V
mV
V
IL=1mA,PREV
CC
=3.5V
V
G
V
GM
f
OSC
7.7
5.0
210
9.7
6.0
310
11.7
7.0
410
V
V
kH
Z
In action
V
EITH
V
SOFT
I
SOFT
R
SOFT
R
DSWONH
R
DSWONL
f
DSW
t
DSWMIN
V
DCO
1.19
1.70
6.5
192
−
−
210
0.01
3.24
1.25
2.40
9.5
253
0.42
0.30
310
−
3.30
1.31
3.10
12.5
314
0.87
0.60
410
0.50
3.36
V
V
µA
kΩ
Ω
Ω
kH
Z
µ
sec
V
IL=500mA
IL=−500mA
Symbol
I
ST
I
CC
I
CG
Min.
−
−
−
Typ.
170
1.45
80
Max.
290
2.60
160
Unit
µA
mA
µA
CE=0V
Conditions
∗This
product is not designed for protection against radioactive rays.
2/3
京公网安备 11010802033920号
EEWORLD
