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BD9898FV Datasheet, PDF (2/5 Pages) Rohm – Silicon Monolithic Integrated Circuit | |||
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âElectric Characteristicsï¼Ta=25âãVCC=24VãSTB=UVLO=3.0Vï¼
Parameter
ï¼ï¼WHOLE DEVICEï¼ï¼
Operating current
Stand-by current
ï¼ï¼STAND BY CONTROLï¼ï¼
Stand-by voltage H
Stand-by voltage L
ï¼ï¼UVLO BLOCKï¼ï¼ï¼
Operating voltage (UVLO)
Hesteresis width (UVLO)
ï¼ï¼REG BLOCKï¼ï¼
REG output voltage
REG source current
ï¼ï¼OSC BLOCKï¼ï¼
RT pin Voltage
Soft start current
SS operation start Voltage
SS term END Voltage
SRT ON resistance
ï¼ï¼BOSC BLOCKï¼ï¼
BOSC Max voltage
BOSC Min voltage
BOSC constant current
BOSC frequency
ï¼ï¼FEED BACK BLOCKï¼ï¼
IS threshold voltage 1
IS threshold voltage 2
VS threshold voltage
IS source current 1
IS source current 2
VS source current
IS COMP detect voltage 1
IS COMP detect voltage 2
VREF input voltage range
ï¼ï¼OUTPUT BLOCKï¼ï¼
LN output sink resistance
LN output source resistance
HN output sink resistance
HN output source resistance
MAX DUTY
OFF period
Drive output frequency
ï¼ï¼TIMER LATCH BLOCKï¼ï¼
Timer Latch setting voltage
Timer Latch setting current
ï¼ï¼COMP BLOCKï¼ï¼
COMP over voltage detect voltage
Hysterisis width (COMP)
((Synchronous Block))
High voltage
Low voltage
CT_SYNC_OUT sink resistance
CT_SYNC_OUT source resistance
High voltage input range
Low voltage input range
Symbol
Limits
MIN.
TYP.
MAX. Unit
Conditions
Icc1
Icc2
ï¼
5.5
10
mA FOUT=60kHz, FB=GND, BST=OPEN
ï¼
60
140
μA
VstH
VstL
2
ï¼
VCC
V System ON
-0.3
ï¼
0.8
V System OFF
Vuvlo
â¿Vuvlo
2.16
2.25
2.34
V
0.085
0.110
0.135
V
VREG
IREG
7.35
7.50
7.65
V
20
ï¼
ï¼
mA
VRT
1.05
1.50
1.95
V
ISS
1.7
2.2
2.7
μA
VSS_ST
0.18
0.20
0.22
V
VSS_ED
1.35
1.50
1.65
V
RSRT
ï¼
85
170
Ω
VBCTH
VBCTL
IBCT
fBCT
1.94
0.4
1.35/BRT
291
2
0.5
1.5/BRT
300
2.06
0.6
1.65/BRT
309
V fBCT=0.3kHz
V fBCT=0.3kHz
A VBCT=0.2V
Hz (BRT=37.8kΩ BCT=0.047μF)
VIS1
VIS2
VVS
IIS1
IIS2
IVS
VISCOMP1
VISCOMP2
VREFIN
1.225
ï¼
1.22
ï¼
40
ï¼
0.606
ï¼
0.6
1.25
VREFIN
1.25
ï¼
50
ï¼
0.625
0.50
ï¼
1.275
VIS1
1.28
0.9
60
0.9
0.644
ï¼
1.6
V
V VREF applying voltage
V
μA DUTY=2.2V
μA DUTY=0V IS=1.0V
μA
V VREFINâ§1.25V
V VREFIN= 1V
V No effect at VREFï¼1.25V
RsinkLN
1.8
3.5
7.0
Ω
RsourceLN
4.5
9.0
18.0
Ω
RsinkHN
1.8
3.5
7.0
Ω VBST-VSW=7.0V
RsourceLN
4.5
9.0
18.0
Ω VBST-VSW=7.0V
MAX DUTY 46.0
48.5
49.5
% FOUT=60kHz
TOFF
100
200
400
ns
FOUT
57.9
60
62.1 kHz RT=21k Ω
VCP
3.88
4.0
4.12
V
ICP
1.6
2.1
2.6
μA
VCOMPH
3.88
4.0
4.12
V VSSï¼1.65V
â¿VCOMPH 0.15
0.20
0.25
V
VCT_SYNCH
VCT_SYNCL
RSYNC_OUT_sink
RSYNC_OUT_source
VCT_SYNC_IN_H
VCT_SYNC_IN_L
3.8
ï¼
ï¼
ï¼
2.5
-0.3
4.0
4.2
V
ï¼
0.5
V
150
300
Ω
300
400
Ω
ï¼
VCT_SYNCH V
ï¼
1
V
ï¼This product is not designed to be radiation-resistant.ï¼
REV. B
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