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SE3362 Datasheet(HTML) 3 Page - Seaward Electronics Inc.

Part No. SE3362
Description  4-Channel Regulated Charge Pump White LED Driver
Download  8 Pages
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Maker  SEAWARD [Seaward Electronics Inc.]
Homepage  http://www.seawardinc.com
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SE3362 Datasheet(HTML) 3 Page - Seaward Electronics Inc.

   
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Revision 12/4/2008
Preliminary and all contents are subject to change without prior notice
© Seaward Electronics, Inc., 2007. • www.seawardinc.com.cn • Page 3
Absolute Maximum Rating
(1)
Parameter
Value
Units
VIN, VOUT, LEDx voltage
-0.3~7V
V
EN, CTRx,RSET voltage
-0.3 to VIN
V
RSET current
±1
mA
Lead Temperature (Soldering, 5 sec.)
260
°C
Junction Temperature
0 to +150
°C
Storage Temperature
-40 to +150
°C
Operating Rating
(2)
Parameter
Symbol
Value
Units
Supply Input Voltage Range
VIN
5.5
V
Junction Temperature Range
TJ
0 to +125
°C
I LED per LED pin
0to 30
mA
Electrical Characteristics
VIN = 3.5V; C1=1.0
μF; T
J = 25°C; unless otherwise noted
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Input Supply Voltage
VIN
2.85
--
5.5
V
RSET Regulated Voltage
VRSET
1.22
1.25
1.28
V
Current into LEDs
ILED
RSET=100K
--
5
--
mA
RSET=25.0 K
--
20
--
mA
RSET=16.7 K
--
30
--
mA
EN=Low, Shutdown Mode
--
1
--
uA
1x Mode , No Load
--
170
--
uA
Quiescent Current
IQ
2x Mode, No Load
--
2.5
--
mA
ILED Accuracy
ILED-ERR
2mA<ILED<30mA
--
2
7.5
%
Current Matching
(3)
ILED-LED-ERR
2mA<ILED<30mA
--
1
5
%
x1 mode to x2 mode Transition
Voltage(VIN falling)
VTRANS
VLED=3.5V,IOUT=80mA,ILED=20mA
--
3.8
--
V
Oscillator Frenquency
FOSC
VLED=3.5V,IOUT=80mA,ILED=20mA
--
1.0
--
MHz
Input High Threshold
VIH
Input high logic threshold
1.5
--
--
V
Input Low Threshold
VIL
Input low logic threshold
--
--
0.4
V
Input Leakage Current
IIN
--
--
1
μA
Thermal Protection Temperature
--
150
--
TPROTECTION
Thermal
Protection
Protection Hysterisys
--
20
--
°C


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