BD9240FV Datasheet, PDF (2/5 Pages) Rohm – Silicon Monolithic Integrated Circuit

○ Electric Characteristics（Ta=25℃，VCC=12V）
Parameter
（（WHOLE DEVICE））
Operating current
Stand-by current
（（STAND BY CONTROL））
Stand-by voltage H 1
Stand-by voltage H 2
Stand-by voltage L
（（UVLO BLOCK））
Operating voltage (VCC)
Hesteresis width (VCC)
Operating voltage (UVLO)
Hesteresis width (UVLO)
（（SOFT START BLOCK））
Soft start current
SS_COMP detect voltage
（（OSC BLOCK））
RT Output Voltage
STR ON Resistor value
（（BOSC BLOCK））
BOSC Max voltage
BOSC Min voltage
BOSC constant current
BOSC frequency
（（FEED BACK BLOCK））
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
（（OUTPUT BLOCK））
NA output voltage H
NB output voltage H
NA output voltage L
NB output voltage L
NA output sink resistance
NA output source resistance
NB output sink resistance
NB output source resistance
Drive output frequency
（（CT SYNCHRONOUS BLOCK : CLKIN pin））
Input High voltage range
Input Low voltage range
Symbol
Icc1
Icc2
VstH1
VstH2
VstL
Vuvlo
⊿Vuvlo
Vvlo_u
⊿Vvlo_u
Iss
Vss
VRT
RSRT
VBCTH
VBCTL
IBCT
FBCT
Vis1
Vis2
Vvs
Iis1
Iis2
Ivs
VISCOMP1
VISCOMP2
VREFIN
VoutAH
VoutBH
VoutAL
VoutBL
Rsink_NA
Rsource_NA
Rsink_NB
Rsource_NB
Fout
VCT_CLKIN_H
VCT_CLKIN_L
MIN.
－
－
VCCx0.85
2
－0.3
6.65
0.37
2.4
0.075
1.5
2.3
1.05
-
1.94
0.40
1.35/BRT
291
1.225
-
1.220
－
40
－
0.64
-
0.6
VCC-0.3
VCC-0.3
-
-
1.3
4.0
1.3
4.0
57.9
2.5
-0.3
Limits
TYP.
6.2
21
-
-
-
7.00
0.50
2.5
0.100
2.0
2.5
1.50
100
2.00
0.50
1.50/BRT
300
1.250
VREFIN
1.250
－
50
－
0.66
0.5
-
VCC-0.1
VCC-0.1
0.1
0.1
2.5
8.0
2.5
8.0
60.0
－
－
2/4
MAX.
12.0
60
VCC
VCCx0.5
0.8
7.35
0.63
2.6
0.125
2.5
2.7
1.95
200
2.06
0.60
1.65/BRT
309
1.275
VIS1
1.280
0.9
60
0.9
0.68
-
1.6
-
-
0.3
0.3
5.0
16.0
5.0
16.0
62.1
5.0
0.5
Unit
Conditions
mA
FOUT=60kHz, FB=GND
uA
V
System ON (DUTY 2ch input mode)
V
System ON (DUTY 1ch input mode)
V
System OFF
V
V
V
V
uA
V
V
Ω
V
fBCT=0.3kHz
V
fBCT=0.3kHz
A
Hz
(BRT=36.2kΩ, BCT=0.047uF )
V
V
VREF applying voltage
V
uA
DUTY=2.0V
uA
DUTY=0V, IS=1.0V
uA
V
VREFIN≧1.25V
V
VREFIN=1V
V
No effect at VREF>1.25V
V
V
V
V
Ω
Ω
Ω
Ω
kHz
RT=21kΩ
V
V
REV. A