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Rohm Semiconductor Electronic Components Datasheet

BD9897FS Datasheet

DC-AC Inverter Control IC

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STRUCTURE
NAME OF PRODUCT
TYPE
FUNCTION
Silicon Monolithic Integrated Circuit
DC-AC Inverter Control IC
BD9897FS
・ 36V High voltage process
・ 1ch control with Full-Bridge
・ Lamp current and voltage sense feed back control
・ Sequencing easily achieved with Soft Start Control
・ Short circuit protection with Timer Latch
・ Under Voltage Lock Out
・ Mode-selectable the operating or stand-by mode by stand-by pin
・ Synchronous operating the other BD9897FS ICs
・ BURST mode controlled by PWM and DC input
・ Output liner Control by external DC voltage
○Absolute Maximum Ratings(Ta = 25℃)
Parameter
Supply Voltage
BST pin
SW pin
BST-SW voltage difference
Operating Temperature Range
Storage Temperature Range
Maximum Junction Temperature
Power Dissipation
Symbol
VCC
BST
SW
BST-SW
Topr
Tstg
Tjmax
Pd
Limits
36
40
36
7
-40~+85
-55~+150
+150
950*
Unit
V
V
V
V
mW
*Pd derate at 7.6mW/℃ for temperature above Ta = 25℃ (When mounted on a PCB 70.0mm×70.0mm×1.6mm)
〇Operating condition
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Parameter
Supply voltage
BST voltage
BST-SW voltage difference
CT oscillation frequency
BCT oscillation frequency
Symbol
VCC
BST
BST-SW
fCT
fBCT
Limits
7.5~30.0
4.0~36.0
4.0~6.5
60~180
0.05~1.00
Unit
V
V
V
kHz
kHz
Status of this document
The Japanese version of this document is the official specification.
Please use the translation version of this document as a reference to expedite understanding of the official version.
If these are any uncertainty in translation version of this document, official version takes priority.
REV. B


Rohm Semiconductor Electronic Components Datasheet

BD9897FS Datasheet

DC-AC Inverter Control IC

No Preview Available !

○ Electric Characteristics(Ta=25℃,VCC=24V)
Parameter
((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
www.DataSheeLNt4oUut.pcuotmsource 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
Symbol
Icc1
Icc2
VstH
VstL
VuvloH
⊿VCC_Vuvlo
Vuvlo2
⊿Vuvlo
VREG
IREG
Iact
Ineg
VOSCH
VOSCL
ISS
RSRT
VBCTH
VBCTL
IBCT
fBCT
VIS①
VIS②
VVS
IIS1
IIS2
IVS
VISCOMP①
VISCOMP②
VREFIN
VDUTY-OUTH
VDUTY-OUTL
RDUTY-OUTSink
RDUTY-OUTSouce
RsinkLN
RsourceLN
RsinkHN
RsourceLN
MAX DUTY
TOFF
FOUT
VCP
ICP
VCOMPH
VCOMP2_H
VCOMP_L_1
VCOMP_L_2
VCT_SYNCH
VCT_SYNCL
RCT_SYNC_SYNC
RCT_SYNC_SOURCE
VCT_SYNC_IN_H
VCT_SINK_IN_L
MIN.
2.0
-0.3
5.7
0.26
2.179
0.074
5.68
20.0
1.35/(RT*7)
Iact×29
1.8
0.35
0.6
1.94
0.40
1.35/BRT
291
1.225
1.220
32
0.90
0.6
2.8
0.75
2.5
1.25
2.5
46.0
100
58.5
1.94
0.40
2.460
2.460
1.225
0.606
2.8
2.0
-0.3
(This product is not designed to be radiation-resistant.)
Limits
TYP.
7.2
13.0
6.0
0.35
2.25
0.098
5.80
1.5/(RT*6)
Iact×35
2.0
0.45
1.1
100
2.00
0.50
1.5/RT
300
1.250
VREFIN
1.250
50
0.94
VREFIN×0.73
3.1
-
150
250
1.5
5
2.5
5
48.0
200
60.0
2.0
0.55
2.485
2.485
1.25
0.625
3.1
150
370
MAX.
13
30.0
VCC
0.8
6.3
0.43
2.321
0.122
5.92
1.65/(RT*5)
Iact×41
2.2
0.60
1.6
200
2.06
0.60
1.65/RT
309
1.275
VIS①
1.280
0.9
68
0.9
0.98
1.6
3.4
0.5
300
500
3.0
10
5.0
10
49.5
400
61.5
2.06
0.70
2.510
2.510
1.275
0.644
3.4
0.5
300
740
3.3
0.6
2/4
Unit
Conditions
mA CT_SYNC_IN = OPEN
μA
V System ON
V System OFF
V
V
V
V
V VCC>7.0V
mA
A
A
V fCT=120kHz
V fCT=120kHz
μA
Ω
V fBCT=0.3kHz
V fBCT=0.3kHz
A VBCT=0.2V
Hz (BRT=33kΩ BCT=0.048μF)
V
V VREF applying voltage
V
μA DUTY=2.2V
μA DUTY=0V IS=0.5V
μA
V VREFIN≧1.25V
V VREFIN<1.25V
V No effect at VREF>1.25V
V
V
Ω
Ω
Ω
Ω
Ω VBST-VSW=5.0V
Ω VBST-VSW=5.0V
% FOUT=60kHz
ns
kHz (RT=4.7kΩ CT=235pF)
V
μA
V VSS>2.2V
V VSS>2.2V
V VSS>2.2V
V VSS<2.2V
V
V
Ω
Ω
V
V
REV. B


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






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