BD9897FS Rohm, BD9897FS Datasheet - Page 2

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BD9897FS

Manufacturer Part Number
BD9897FS
Description
DC-AC Inverter Control IC
Manufacturer
Rohm
Datasheet

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○ Electric Characteristics(Ta=25℃,VCC=24V)
(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 (VCC)
Hesteresis width (VCC)
Operating voltage (UVLO)
Hesteresis width (UVLO)
( (REG BLOCK) )
REG output voltage
REG source current
( (OSC BLOCK) )
Active edge setting current
Negative edge setting current
OSC Max voltage
OSC Min voltage
Soft start current
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 CLOCK) )
COMP1 over voltage detect voltage
COMP2 over voltage detect voltage
COMP2 under voltage detect voltage ①
COMP2 under voltage detect voltage ②
((Synchronous Block))
High voltage
Low voltage
CT_SYNC sink resistance
CT_SYNC source resistance
High voltage input range
Low voltage input range
Parameter
RCT_SYNC_SOURCE
RDUTY-OUTSouce
RDUTY-OUTSink
RCT_SYNC_SYNC
VCT_SYNC_IN_H
VCT_SINK_IN_L
⊿VCC_Vuvlo
VDUTY-OUTH
VDUTY-OUTL
VISCOMP①
VISCOMP②
RsourceLN
RsourceLN
VCOMP_L_1
VCOMP_L_2
VCT_SYNCH
VCT_SYNCL
MAX DUTY
VCOMP2_H
⊿Vuvlo
RsinkLN
RsinkHN
Symbol
VuvloH
Vuvlo2
VREFIN
VCOMPH
VOSCH
VOSCL
VBCTH
VBCTL
VIS①
VIS②
Icc1
Icc2
VstH
VstL
VREG
IREG
Iact
Ineg
RSRT
IBCT
fBCT
IIS1
IIS2
TOFF
FOUT
ISS
VVS
IVS
VCP
ICP
1.35/(RT*7)
Iact×29
1.35/BRT
2.179
0.074
1.225
1.220
2.460
2.460
1.225
0.606
MIN.
-0.3
0.26
5.68
20.0
0.35
1.94
0.40
0.90
0.75
1.25
46.0
58.5
1.94
0.40
-0.3
2.0
5.7
1.8
0.6
291
0.6
2.8
2.5
2.5
100
2.8
2.0
32
REV. B
VREFIN×0.73
1.5/(RT*6)
Iact×35
Limits
1.5/RT
VREFIN
0.098
1.250
1.250
2.485
2.485
0.625
TYP.
13.0
0.35
2.25
5.80
0.45
2.00
0.50
0.94
60.0
48.0
0.55
1.25
7.2
6.0
2.0
1.1
100
300
3.1
150
250
1.5
2.5
200
2.0
3.1
150
370
50
-
5
5
1.65/(RT*5)
Iact×41
1.65/RT
2.321
0.122
1.275
VIS①
1.280
2.510
2.510
1.275
0.644
MAX.
30.0
0.43
5.92
0.60
2.06
0.60
0.98
61.5
49.5
2.06
0.70
VCC
0.8
6.3
2.2
1.6
200
309
0.9
0.9
1.6
3.4
0.5
300
500
3.0
5.0
400
3.4
0.5
300
740
3.3
0.6
13
68
10
10
Unit
μA
μA
μA
μA
kHz
μA
μA
mA
Ω
Hz
Ω
Ω
Ω
Ω
Ω
Ω
ns
Ω
Ω
mA
V
V
V
V
V
V
V
A
A
V
V
V
V
A
V
V
V
V
V
V
V
V
%
V
V
V
V
V
V
V
V
V
CT_SYNC_IN = OPEN
System ON
System OFF
VCC>7.0V
fCT=120kHz
fCT=120kHz
fBCT=0.3kHz
fBCT=0.3kHz
VBCT=0.2V
(BRT=33kΩ BCT=0.048μF)
VREF applying voltage
DUTY=2.2V
DUTY=0V IS=0.5V
VREFIN≧1.25V
VREFIN<1.25V
No effect at VREF>1.25V
VBST-VSW=5.0V
VBST-VSW=5.0V
FOUT=60kHz
(RT=4.7kΩ CT=235pF)
VSS>2.2V
VSS>2.2V
VSS>2.2V
VSS<2.2V
Conditions
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