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AAT1239ITP-1-T1 Datasheet(PDF) 5 Page - Advanced Analogic Technologies

Part # AAT1239ITP-1-T1
Description  40V Step-Up Converter for 4 to 10 White LEDs
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Manufacturer  ANALOGICTECH [Advanced Analogic Technologies]
Direct Link  http://www.analogictech.com
Logo ANALOGICTECH - Advanced Analogic Technologies

AAT1239ITP-1-T1 Datasheet(HTML) 5 Page - Advanced Analogic Technologies

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AAT1239-1
40V Step-Up Converter for 4 to 10 White LEDs
SwitchRegTM
PRODUCT DATASHEET
1239-1.2007.10.1.0
5
www .analogictech.com
AAT1239-1
40V Step-Up Converter for 4 to 10 White LEDs
SwitchRegTM
PRODUCT DATASHEET
1239-1.2007.10.1.0
5
www .analogictech.com
Typical Characteristics
Efficiency vs. LED Current
(10 White LEDs; RBALLAST = 30.1
Ω
Ω)
ILED (mA)
66
68
70
72
74
76
78
80
2
4
6
8
10
12
14
16
18
20
VIN = 5V
VIN = 4.2V
VIN = 3.6V
Efficiency vs. LED Current
(9 White LEDs; RBALLAST = 30.1
Ω
Ω)
ILED (mA)
66
68
70
72
74
76
78
2
4
6
8
10
12
14
16
18
20
VIN = 5V
VIN = 4.2V
VIN = 3.6V
Shutdown Current vs. Input Voltage
(EN = GND)
Input Voltage (V)
0.0
0.2
0.4
0.6
0.8
1.0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
-40°C
85°C
25°C
Line Transient
(10 White LEDs; RBALLAST = 30.1
Ω
Ω)
Time (50µs/div)
32.8
33
33.2
0.58
0.6
0.62
4.2V
3.6V
Accuracy I
LED vs. Input Voltage
(VFB = 0.6V; RBALLAST = 30.1
Ω
Ω)
Input Voltage (V)
-2.0
-1.5
-1.0
-0.5
0.0
0.5
1.0
1.5
2.0
2.7
3.2
3.7
4.2
4.7
5.2
5.7
-40°C
25°C
85°C
Accuracy I
LED vs. Temperature
(VFB = 0.6V; RBALLAST = 30.1
Ω
Ω)
Temperature (°C)
-1.5
-1.0
-0.5
0.0
0.5
1.0
1.5
-40
-15
10
35
60
85


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