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APW7008 데이터시트(PDF) 3 Page - Anpec Electronics Coropration

부품명 APW7008
상세설명  1X/1.5X/2x Charge Pump White LED Driver
PDF  22 Pages
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제조업체  ANPEC [Anpec Electronics Coropration]
홈페이지  http://www.anpec.com.tw
Logo ANPEC - Anpec Electronics Coropration

APW7008 데이터시트(HTML) 3 Page - Anpec Electronics Coropration

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Copyright
© ANPEC Electronics Corp.
Rev. A.4 - Jun., 2009
APW7008
www.anpec.com.tw
3
Recommended Operating Conditions
Symbol
Parameter
Rating
Unit
VIN
Input Voltage
2.8 to 4.5
V
VOUT
Output Voltage
3 to 4
V
ILED
LED Current
5 to 30
mA
Output Current, VIN>3.5V, VF=3.1V, 1x Mode
180
Output Current, 3.5V<VIN>3.1V, VF=3.1V, 1.5x Mode
120
IOUT
Output Current, 3.1V<VIN>2.8V, VF=3.1V, 2x Mode
90
mA
TA
Ambient Temperature
-40 to 85
°C
Electrical Characteristics
APW7008
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VIN
Input Voltage
2.7
-
5.5
V
VUVLO
Under-Voltage Lockout Threshold
VIN falling
2.2
2.4
2.6
V
Under-Voltage Lockout Hysteresis
-
50
-
mV
in 1.5x/2x mode
-
2
4
mA
No switching in 1x mode
-
0.5
1
mA
IQ
Quiescent Current
EN=0
-
0.1
2
µA
ILED-ERR
LED Current Accuracy
5mA<ILED<30mA
(Note 3)
-
±2
±8
%
Current Matching
5mA<ILED<30mA
(Note 4)
-
±1.5
±5
%
IISET
ISET Current
5
-
1000
µA
ISET to LED Current Ratio
IILED / (1.2V / REST) 5mA<ILED<30mA, TA
= +25
°C
370
400
420
VILED-TH
ILED Threshold Voltage
VILED falling
-
100
-
mV
1.5x mode to 1x mode Transition
Hysteresis
VIN rising, VIN-VOUT
-
300
-
mV
2x mode to 1.5x mode Transition
Hysteresis
VIN rising, VOUT-VIN
-
300
-
mV
FOSC
Switching Frequency
0.8
1
1.2
MHz
1x mode (VIN-VOUT) / IOUT
-
1.6
3
1.5x mode (1.5xVIN-VOUT) / IOUT
-
7
12
ROUT
Open Loop VOUT Resistance
2x mode (2xVIN-VOUT) / IOUT
-
16
28
Ω
ISHORT
Short Circuit Current-Limit
VOUT < 1V
-
40
-
mA
VOVP
OVP Threshold
5
5.5
6
VIH
Logic Pins High Threshold
1.3
0.7
-
V
V
IN = 2.85 to 5.5V, CIN = COUT = C1 = C2 = 1µF (ESR = 0.03Ω), ILED = 20mA, TA = -40°C to +85°C, unless otherwise noted. Typical values
are at T
A = +25°C.



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