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AAT1231ITP-T1 Datasheet(PDF) 6 Page - Advanced Analogic Technologies

Part # AAT1231ITP-T1
Description  Step-Up DC/DC Converters for White LED Backlight Applications
Download  27 Pages
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Manufacturer  ANALOGICTECH [Advanced Analogic Technologies]
Direct Link  http://www.analogictech.com
Logo ANALOGICTECH - Advanced Analogic Technologies

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Typical Characteristics
Output Ripple
(6 White LEDs; ILED = 20mA)
Time (200ns/div)
VOUT (DC
Offset 20.7V)
(20mV/div)
VLX (V)
IL (A)
0
0.5
0
20
Output Ripple
(6 White LEDs; ILED = 13mA)
Time (400ns/div)
VOUT (DC
Offset 19.8V)
(50mV/div)
VLX (V)
IL (A)
0
0.5
0
20
Shutdown
(VFB = 0.6V; ILED = 20mA)
Time (50µs/div)
0
0.2
0.4
0.6
0.0
0.5
2.5V
0V
Line Transient
(6 White LEDs; RBALLAST = 30.1
Ω)
Time (50µs/div)
20.2
20.4
20.6
20.8
0.4
0.6
0.8
3.6V
4.2V
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)
-1.0
-0.8
-0.5
-0.3
0.0
0.3
0.5
0.8
1.0
-40
-15
10
35
60
85
AAT1231/1231-1
Step-Up DC/DC Converters for
White LED Backlight Applications
6
1231.2007.01.1.2


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