APW7008(2009_06) Ver la hoja de datos (PDF) - Anpec Electronics
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APW7008 Datasheet PDF : 22 Pages
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APW7008
Recommended Operating Conditions
Symbol
Parameter
VIN Input Voltage
VOUT
ILED
Output Voltage
LED Current
Output Current, VIN>3.5V, VF=3.1V, 1x Mode
IOUT Output Current, 3.5V<VIN>3.1V, VF=3.1V, 1.5x Mode
Output Current, 3.1V<VIN>2.8V, VF=3.1V, 2x Mode
TA Ambient Temperature
Rating
Unit
2.8 to 4.5
V
3 to 4
V
5 to 30
mA
180
120
mA
90
-40 to 85
°C
Electrical Characteristics
VIN = 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 TA = +25°C.
Symbol
Parameter
Test Conditions
APW7008
Unit
Min.
Typ.
Max.
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
IQ Quiescent Current
ILED-ERR LED Current Accuracy
Current Matching
IISET ISET Current
in 1.5x/2x mode
No switching in 1x mode
EN=0
5mA<ILED<30mA (Note 3)
5mA<ILED<30mA (Note 4)
-
2
4
mA
-
0.5
1
mA
-
0.1
2
µA
-
±2
±8
%
-
±1.5
±5
%
5
-
1000
µA
ISET to LED Current Ratio
IILED / (1.2V / REST) 5mA<ILED<30mA, TA
= +25°C
370
400
420
VILED-TH
FOSC
ILED Threshold Voltage
1.5x mode to 1x mode Transition
Hysteresis
2x mode to 1.5x mode Transition
Hysteresis
Switching Frequency
ROUT Open Loop VOUT Resistance
ISHORT
VOVP
VIH
Short Circuit Current-Limit
OVP Threshold
Logic Pins High Threshold
VILED falling
VIN rising, VIN-VOUT
VIN rising, VOUT-VIN
1x mode (VIN-VOUT) / IOUT
1.5x mode (1.5xVIN-VOUT) / IOUT
2x mode (2xVIN-VOUT) / IOUT
VOUT < 1V
-
100
-
mV
-
300
-
mV
-
300
-
mV
0.8
1
1.2
MHz
-
1.6
3
-
7
12
Ω
-
16
28
-
40
-
mA
5
5.5
6
1.3
0.7
-
V
Copyright © ANPEC Electronics Corp.
3
Rev. A.4 - Jun., 2009
www.anpec.com.tw
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