BD9215AFV Rohm, BD9215AFV Datasheet - Page 2

• Manufacturer Part Number: BD9215AFV
• Description: Silicon Monolithic Integrated Circuit
• Manufacturer: Rohm

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Electric Characteristics
（This product is not designed to be radiation-resistant.）
（（WHOLE DEVICE））
Operating current
Stand-by current
（（STAND BY CONTROL））
Stand-by voltage H
Stand-by voltage L
（（UVLO BLOCK）））
Operating voltage (UVLO)
Hesteresis width (UVLO)
（（REG BLOCK））
REG output voltage
REG source current
（（OSC BLOCK））
RT pin Voltage
Soft start current
SS operation start Voltage
SS term END Voltage
SRT ON resistance
（（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
（（DUTY BLOCK））
High voltage
Low voltage
DUTY-OUT sink resistance
DUTY-OUT source resistance
（（OUTPUT BLOCK））
LN output sink resistance
LN output source resistance
HN output sink resistance
HN output source resistance
MAX DUTY
OFF period
Drive output frequency
（（TIMER LATCH BLOCK））
Timer Latch setting voltage
Timer Latch setting current
（（COMP BLOCK））
COMP over voltage detect voltage
Hysterisis width (COMP)
((Synchronous Block))
High voltage
Low voltage
CT_SYNC_OUT sink resistance
CT_SYNC_OUT source resistance
Parameter
（Ta=25℃、VCC=24V、STB=UVLO=3.0V）
RSYNC_OUT_sink
RDUTY-OUT_source
VCT_SYNCH
VCT_SYNCL
RSYNC_OUT_source
⊿VCOMPH
VISCOMP1
VISCOMP2
VDUTY-OUTH
RDUTY-OUT_sink
RsourceLN
RsourceLN
MAX DUTY
VDUTY-OUTL
VCOMPH
RsinkHN
⊿Vuvlo
VSS_ST
VSS_ED
RsinkLN
VREFIN
Symbol
VBCTH
VBCTL
VREG
FOUT
Vuvlo
RSRT
TOFF
fBCT
VstH
IREG
IBCT
VstL
VIS1
VIS2
VCP
Icc1
Icc2
VRT
VVS
IIS1
IIS2
ISS
IVS
ICP
1.35/BRT
0.085
1.225
0.606
MIN.
1.05
0.18
1.35
3.88
3.88
-0.3
2.16
7.35
1.94
1.22
46.0
57.9
0.15
291
100
1.7
0.4
0.6
3.8
1.8
4.5
1.8
4.5
1.6
3.8
－
－
20
－
－
－
40
－
－
－
－
－
－
－
－
2
REV. A
1.5/BRT
VREFIN
Limits
0.110
0.625
TYP.
2.25
7.50
1.50
0.20
1.50
1.25
1.25
0.50
48.5
0.20
300
150
300
200
150
300
5.0
6.3
2.2
0.5
4.0
3.5
9.0
3.5
9.0
4.0
2.1
4.0
4.0
－
－
－
85
－
50
－
－
60
－
-
2
1.65/BRT
MAX.
0.135
0.644
1.275
VCC
VIS1
2.34
7.65
1.95
0.22
1.65
2.06
1.28
18.0
18.0
49.5
62.1
4.12
4.12
0.25
170
309
300
600
400
300
400
9.0
0.8
2.7
0.6
0.9
0.9
1.6
4.2
0.5
7.0
7.0
2.6
4.2
0.5
20
－
60
－
Unit
μA
μA DUTY=2.2V
μA DUTY=0V IS=1.0V
μA
kHz RT=21k Ω
μA
μA
mA
Hz
mA
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
ns
V
V
V
V
V
V
V
V
V
V
A
V
V
V
V
V
V
V
V
V
V
V
V
V
%
FOUT=60kHz, FB=GND, BST=OPEN
System ＯＮ
System ＯＦＦ
fBCT=0.3kHz
fBCT=0.3kHz
VBCT=0.2V
(BRT=37.8kΩ BCT=0.047μF)
VREFIN≧1.25V
VREFIN= 1V
No effect at VREF＞1.25V
VBST-VSW=7.0V
VBST-VSW=7.0V
VSS＞1.65V
VREF applying voltage
FOUT=60kHz
Conditions
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