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KDR412 Datasheet(PDF) 3 Page - KEC(Korea Electronics)

Part # KDR412
Description  White LED Step-Up Converter
PDF  7 Pages
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Manufacturer  KEC [KEC(Korea Electronics)]
Direct Link  http://www.keccorp.com
Logo KEC - KEC(Korea Electronics)

KDR412 Datasheet(HTML) 3 Page - KEC(Korea Electronics)

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2007. 2. 26
3/7
KAB3403T/DN
Revision No : 0
ELECTRICAL CHARACTERISTIC
(Topr=-40~85
, VCC=2.7~5.5V, RSENSE=16 , unless otherwise noted.)
CHARACTERISTICS
SYMBOL
CONDITION
MIN.
TYP.
MAX.
UNIT
Input Voltage
VCC
-
2.7
-
5.5
V
Supply Current
ICC
VCC = 3.6V, VCTL=3.6V
-
0.9
1.5
VCTL = 0V
-
0.5
1
Feedback Voltage
VFB
VCC=VCTL=3.0V, Topr = 25 , L =4.7 H
304
320
336
CTL Pin Bias Current
ICTL
VCC = 3.0V, VCTL = 3.0V
-
5
10
Switching Frequency
fOSC
VCTL = 3.0V
0.77
1.1
1.43
Switching Pin Current
IO(SW)
-
400
-
Switch Leak Current
IOZ(SW)
-
-
0.5
1
OVD Pin Voltage
VOVD
-
19
21
23
V
OVD Pin Leak Current
IOZ(OVD)
VOVD = 18V
-
0.5
1
Switching Pin OVP
VO(SW)
-
25
-
-
V
CTL pin voltage for Full LED Current
VCTL H
VCC = 3.0V
2.7
-
-
V
CTL pin voltage to shutdown Chip
VCTL L
-
-
0.5
V
Feedback Bias Current
IFB
-
-
0.5
1
Maximum Duty Cycle
Dmax
-
85
90
-
%
CHARACTERISTICS
SYMBOL
CONDITION
MIN.
TYP.
MAX.
UNIT
Input Voltage
VCC
-
2.7
-
5.5
V
CTL pin voltage for full LED current
VCTL H
VCC=3.0V
2.7
-
-
V
CTL pin voltage to shutdown chip
VCTL L
-
-
0.5
V
LED Current
IF
VCC=3.6V, RSENSE=16 ,
Topr =25
, Five LED
-
20
-
CTL Response Delay
(When Power ON.)
Tpd CTL
-
2
-
-
RECOMMENDED OPERATING CONDITIONS (Topr=-40~85
)
CHARACTERISTICS
SYMBOL
RATING
UNIT
Input Voltage
VCC
-0.3 ~ 6.0
V
Switching pin Voltage
VSW
-0.3 ~ 22
V
OVD pin Voltage
VOVD
-0.3 ~ 22
V
Operating temperature range
Topr
-40 ~ 85
Storage temperature range
Tstg
-55 ~ 150
Maximum Junction temperature
Tj
150
MAXIMUM RATINGS (Ta=25
)



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