參數(shù)資料
型號(hào): AAT2803ISK-4.5-T1
廠商: Advanced Analog Technology,lnc.
英文描述: Six-Channel White LED Backlight Charge Pump with Flash
中文描述: 六通道白光LED閃光背光電荷泵
文件頁(yè)數(shù): 8/16頁(yè)
文件大?。?/td> 589K
代理商: AAT2803ISK-4.5-T1
AAT2803
Six-Channel White LED Backlight
Charge Pump with Flash
8
2803.2006.12.1.6
Typical Characteristics–White LED Backlight Driver Section
Unless otherwise noted, V
IN
= 3.6V, C
IN
= C
OUT
= C
1
= C
2
= C
3
= 1.0
μ
F; T
A
= 25°C.
Current Matching vs. Temperature
Temperature (
°
C)
C
19.2
19.4
19.6
19.8
20.0
20.2
-40
-20
0
20
40
60
80
Channel 2
Channel 1
Channel 5
Channel 3
Channel 4
Channel 6
Turn-Off from 1.5X Mode
(V
IN
= 3.5V; 20mA Load)
100
μ
s/div
EN
(2V/div)
I
IN
(100mA/div)
V
F
(1V/div)
Turn-On to 2X Mode
(V
IN
= 2.8V; 20mA Load)
100
μ
s/div
EN
(2V/div)
CP
(2V/div)
I
IN
(200mA/div)
V
SINK
(500mV/div)
Turn-On to 1.5X Mode
(V
IN
= 3.8V; 20mA Load)
100
μ
s/div
EN
(2V/div)
CP
(2V/div)
I
IN
(200mA/div)
V
SINK
(500mV/div)
Turn-On to 1X Mode
(V
IN
= 4.2V; 20mA Load)
100
μ
s/div
EN
(2V/div)
CP
(2V/div)
I
IN
(200mA/div)
V
SINK
(500mV/div)
Efficiency vs. Supply Voltage
Supply Voltage (V)
E
50
60
70
80
90
100
2.8
3.0
3.2
3.4
3.6
3.8
4.0
4.2
4.1mA
V
F
= 2.9V
20mA
V
F
= 3.4V
10.2mA
V
F
= 3.1V
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