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EC4304ANFNR Datasheet(PDF) 7 Page - E-CMOS Corporation

Part # EC4304ANFNR
Description  1A, Hysteretic, High Brightness LED Driver with Internal Switch
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Manufacturer  E-CMOS [E-CMOS Corporation]
Direct Link  http://www.ecmos.com.tw/
Logo E-CMOS - E-CMOS Corporation

EC4304ANFNR Datasheet(HTML) 7 Page - E-CMOS Corporation

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EC4304
1A, Hysteretic, High Brightness
LED Driver with Internal Switch
E-CMOS Corp. (www.ecmos.com.tw)
Page 7 of 13
4B25N-Rev.F005
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
LX RDS_ON
RLX
@ILX = 1A, EC4304A
-
0.3
0.6
LX Leakage Current
-
-
5
µA
Minimum Switch ON Time
TON_min
LX Switch ON
-
240
-
ns
Minimum Switch OFF Time
TOFF_min
LX Switch OFF
-
200
-
ns
Recommended Minimum Switch
ON Time
TON_min_rec
-
800
-
ns
Frequency
Operation Frequency
FLX
ADJ pin floating, L=33µH (0.093
)
IOUT = 1A @ VLED=3.6V driving
1LED
-
280
-
kHz
Recommended Maximum
Operation Frequency
FLXmax
-
-
1
MHz
Duty Cycle Range of Output
Switch of Operation Frequency
DLX
30
-
70
%
Internal Comparator Propagation
Delay
TPD
-
50
-
ns
Soft-Start
Soft-Start Time
Time taken for output current to
reach 90% of final value after
voltage on ADJ pin has risen above
0.3V.
-
500
-
µs


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