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BD9243MUV Datasheet, PDF (2/5 Pages) Rohm – Silicon Monolithic Integrated Circuit | |||
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âElectric Characteristicsï¼Ta=25âãVCC=24VãSTB=3.0Vï¼
Parameter
Symbol
MIN.
ï¼ï¼WHOLE DEVICEï¼ï¼
Operating current
Icc1
ï¼
Stand-by current
Icc2
ï¼
ï¼ï¼STAND BY CONTROLï¼ï¼
Stand-by voltage H
VstH
2.0
Stand-by voltage L
VstL
-0.3
ï¼ï¼VCC UVLO BLOCKï¼ï¼
Operating voltage (VCC)
V_VCCUVP
6.17
Hesteresis width (VCC UVLO)
â¿V_VCCUVP
0.37
ï¼ï¼REG BLOCKï¼ï¼
REG output voltage
VREG
7.35
REG source current
IREG
20
ï¼ï¼OSC BLOCKï¼
RT Output Voltage
VRT
1.05
SRT ON Resistor value
RSRT
ï¼
ï¼ï¼SOFT START BLOCKï¼ï¼
Soft start Charge Current
TSS
1.5
SS term start voltage
VSS_ST
0
SS term end voltage
VSS_END
2.8
ï¼ï¼BOSC BLOCKï¼ï¼
BOSC Max voltage
VBCTH
1.94
BOSC Min voltage
VBCTL
0.4
BOSC frequency
FBCT
291
ï¼ï¼FEED BACK BLOCKï¼ï¼
IS threshold voltage
VIS
1.225
VS threshold voltage
VVS
1.215
IS source current 1
IIS1
ï¼
IS source current 2
IIS2
40
VS source current
IVS
ï¼
IS COMP detect voltage
VISCOMP
0.606
ï¼ï¼OUTPUT BLOCKï¼ï¼
LN output sink resistance
RsinkLN
1.5
LN output source resistance
RsourceLN
5
HN output sink resistance
RsinkHN
1.5
HN output source resistance
RsourceHN
5
MAX DUTY
MAX DUTY
46.0
OFF period
TOFF
100
Drive output frequency
FOUT
57.9
ï¼ï¼TIMER LATCH BLOCKï¼
CP timer latch detect voltage
VCP
1.9
CP timer latch charge current
ICP
0.85
ï¼ï¼COMP BLOCKï¼ï¼
COMP1 over voltage detect voltage
VCOMP1
3.88
Hysteresis width ï¼COMP1ï¼
â¿VCOMP1
0.15
COMP2 over voltage detect voltage
VCOMP2
3.88
(This product is not designed to be radiation-resistant.)
Limits
TYP.
2.2
0
ï¼
ï¼
6.50
0.50
7.50
ï¼
1.50
100
2.0
50
3.0
2.00
0.5
300
1.250
1.250
ï¼
50
ï¼
0.625
3
10
3
10
48.5
200
60.0
2.0
1.0
4.00
0.20
4.00
MAX.
Unit
Conditions
5.0
mA FOUT=60kHz, FB=SW=GND, BST=OPEN
10
μA
VCC
V System ON
0.8
V System OFF
6.83
V
0.63
V
7.65
ï¼
V VCC>8.5V, Io=10mA
mA
1.95
V
200
Ω
2.5
uA
150
mV
3.2
V
2.06
0.6
309
V fBCT=0.3kHz
V fBCT=0.3kHz
Hz BCT=10000pF
1.275
1.285
0.9
60
0.9
0.644
V
V
μA DUTY=2.2V
μA DUTY=0V IS=1.0V
μA
V
6
20
6
20
49.5
400
62.1
Ω
Ω
Ω VBST-VSW=7.0V
Ω VBST-VSW=7.0V
% FOUT=60kHz, SW=GND, BST=OPEN
ns SW=GND, BST=OPEN
kHz RT=82kΩ
2.1
V
1.15
μA
4.12
V
0.25
V
4.12
V
2/4
REV. A
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