參數(shù)資料
型號(hào): MAX1986ETE
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 顯示驅(qū)動(dòng)器
英文描述: Ultra-High-Efficiency White LED Drivers
中文描述: LED DISPLAY DRIVER, QCC16
封裝: 4 X 4 MM, 0.80 MM HEIGHT, MO-220WGGB, QFN-16
文件頁(yè)數(shù): 6/17頁(yè)
文件大小: 333K
代理商: MAX1986ETE
M
Ultra-High-Efficiency White
LED Drivers
6
_______________________________________________________________________________________
Typical Operating Characteristics
(Circuit of Figure 1; V
IN
= 3.3V, SETI = IN, MODE = IN, T
A
= +25
°
C, unless otherwise noted.)
STEP-UP REGULATOR EFFICIENCY
vs. LED CURRENT (8 LEDs)
M
LED CURRENT (mA)
E
20
15
10
5
60
70
80
90
100
50
0
25
V
IN
= 3.0V
V
IN
= 3.6V
V
IN
= 4.2V
STEP-UP REGULATOR EFFICIENCY
vs. LED CURRENT (6 LEDs)
M
LED CURRENT (mA)
E
20
15
10
5
60
70
80
90
100
50
0
25
V
IN
= 3.0V
V
IN
= 3.6V
V
IN
= 4.2V
STEP-UP REGULATOR EFFICIENCY
vs. LED CURRENT (4 LEDs)
M
LED CURRENT (mA)
E
20
15
10
5
60
70
80
90
100
50
0
25
V
IN
= 3.0V
V
IN
= 3.6V
V
IN
= 4.2V
STEP-UP REGULATOR EFFICIENCY
vs. INPUT VOLTAGE (25mA LED CURRENT)
M
INPUT VOLTAGE (V)
E
5.0
4.5
4.0
3.5
3.0
85
90
95
100
80
2.5
5.5
8 LEDs
6 LEDs
4 LEDs
STEP-UP REGULATOR EFFICIENCY
vs. INPUT VOLTAGE (4mA LED CURRENT)
M
INPUT VOLTAGE (V)
E
5.0
4.5
4.0
3.5
3.0
60
70
80
90
100
50
2.5
5.5
8 LEDs
6 LEDs
4 LEDs
TOTAL EFFICIENCY
vs. LED CURRENT (8 LEDs)
M
LED CURRENT (mA)
E
20
15
10
5
60
70
80
90
100
50
0
25
η
TOTAL
=
V
LEDi
x I
LEDi
i = 1
INPUT_POWER
η
Σ
V
IN
= 3.0V
V
IN
= 3.6V
V
IN
= 4.2V
TOTAL EFFICIENCY
vs. LED CURRENT (6 LEDs)
M
LED CURRENT (mA)
E
20
15
10
5
60
70
80
90
100
50
0
25
V
IN
= 3.0V
V
IN
= 3.6V
V
IN
= 4.2V
η
TOTAL
=
V
LEDi
x I
LEDi
i = 1
INPUT_POWER
η
TOTAL EFFICIENCY
vs. LED CURRENT (4 LEDs)
M
LED CURRENT (mA)
E
20
15
10
5
60
70
80
90
100
50
0
25
V
IN
= 3.0V
V
IN
= 3.6V
V
IN
= 4.2V
η
TOTAL
=
V
LEDi
x I
LEDi
i = 1
INPUT_POWER
η
TOTAL EFFICIENCY vs. INPUT VOLTAGE
(25mA LED CURRENT)
M
INPUT VOLTAGE (V)
E
5.0
4.5
4.0
3.5
3.0
60
70
80
90
100
50
2.5
5.5
8 LEDs
6 LEDs
4 LEDs
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