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BD9889FV Datasheet(PDF) 2 Page - Rohm

Part # BD9889FV
Description  Silicon Monolithic Integrated Circuit
Download  5 Pages
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Manufacturer  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

BD9889FV Datasheet(HTML) 2 Page - Rohm

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REV. A
○Electric Characteristics(Ta=25℃,VCC=7V)
Parameter
Symbol
Limits
Unit
Conditions
MIN.
TYP.
MAX.
((WHOLE DEVICE)
Operating current
Icc1
11.0
17.0
mA
CT=0.5V
Stand-by current
Icc2
2
10
μA
((OVER VOLTAGE DETECT))
FB overvoltage detect voltage
Vovf
2.20
2.40
2.60
V
((STAND BY CONTROL))
Stand-by voltage H
VstH
1.6
VCC
V
System ON
Stand-by voltage L
VstL
-0.3
0.8
V
System OFF
Stand-by hysteresis
⊿Vst
0.08
0.18
0.28
V
((TIMER LATCH))
Timer Latch voltage
Vcp
1.9
2.0
2.1
V
Timer Latch current
Icp
0.5
1.0
1.5
μA
((BURST MODE))
BOSC Max voltage
VburH
1.94
2.0
2.06
V
fBCT=0.2kHz
BOSC Min Voltage
VburL
0.4
0.5
0.6
V
fBCT=0.2kHz
BOSC constant current
IBCT
1.35/BRT
1.5/BRT
1.65/BRT
A
BOSC frequency
FBOSC
266
280
294
Hz
BRT=33kΩ、BCT=0.050μF
((OSC BLOCK))
OSC constant current
ICT
1.35/RT
1.5/RT
1.65/RT
A
OSC Max voltage
VoscH
1.8
2.0
2.2
V
fCT=60kHz
OSC Min voltage
VoscL
0.3
0.5
0.7
V
fCT=60kHz
MAX DUTY
MAXDUTY
44
46.5
49
%
fCT=60kHz
Soft start current
Iss
1.0
2.0
3.0
μA
IS COMP detect Voltage
Visc
0.45
0.50
0.55
V
SS COMP detect voltage
Vss
2.0
2.2
2.4
V
SRT ON resistance
RSRT
200
400
Ω
((UVLO BLOCK))
Operating voltage
VuvloH
4.100
4.300
4.500
V
Shut down voltage
VuvloL
3.900
4.100
4.300
V
Operating voltage (External UVLO)
Vuvlo1
2.160
2.220
2.280
V
Lock out voltage (External UVLO)
Vuvlo2
2.242
2.315
2.388
V
Hysteresis width
⊿Vuvlo
0.068
0.095
0.122
V
((REG BLOCK))
REG output voltage
VREG
3.038
3.100
3.162
V
REG source current
IREG
5.0
mA
VREF input voltage range
VREF
0.60
1.50
V
((FEED BACK BLOCK))
IS threshold voltage
Vis
VREF
V
VREF voltage
VS threshold voltage
Vvs
1.220
1.250
1.280
V
IS source current 1
Iis1
1.5
μA
DUTY=2.0V
IS source current 2
Iis2
13.0
20.0
27.0
μA
DUTY=0V、IS=0.5V
VS source current
Ivs
1.0
μA
((OUTPUT BLOCK)
NAch output voltage H
VoutNAH
VCC-0.3
VCC-0.1
V
NBch output voltage H
VoutNBH
VCC-0.3
VCC-0.1
V
NAch output voltage L
VoutNAL
0.1
0.3
V
NBch output voltage L
VoutNBL
0.1
0.3
V
NAch output sink resistance
RsinkNA
5
10
Ω
Isink = 10mA
NAch output source resistance
RsourceNA
8
16
Ω
Isource = 10mA
NBch output sink resistance
RsinkNB
5
10
Ω
Isink = 10mA
NBch output source resistance
RsourceNB
8
16
Ω
Isource = 10mA
Drive output frequency
fOUT
58.5
60.0
61.5
KHz
RT=18kΩ、CT=400pF
((COMP BLOCK))
Over voltage detect
VCOMPH
3.0
3.1
3.2
V
Under voltage detect
VCOMPL
0.620
0.640
0.660
V
((PROTECT CLOCK))
Normal output voltage
VPH
2.9
3.1
3.3
V
Protect output voltage
VPL
0.5
V
(This product is not designed to be radiation-resistant.)


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