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参数资料
| 型号： | MAX1986ETE+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 6/17页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHITE BCKLGT 16-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 4 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 800kHz ~ 1.2MHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
Ultra-High-Efficiency White
LED Drivers
Typical Operating Characteristics
(Circuit of Figure 1; V IN = 3.3V, SETI = IN, MODE = IN, T A = +25 ° C, unless otherwise noted.)
100
STEP-UP REGULATOR EFFICIENCY
vs. LED CURRENT (8 LEDs)
100
STEP-UP REGULATOR EFFICIENCY
vs. LED CURRENT (6 LEDs)
100
STEP-UP REGULATOR EFFICIENCY
vs. LED CURRENT (4 LEDs)
90
V IN = 3.6V
90
V IN = 3.6V
90
V IN = 3.6V
80
V IN = 3.0V
V IN = 4.2V
80
V IN = 3.0V
V IN = 4.2V
80
V IN = 4.2V
70
60
50
70
60
50
70
60
50
V IN = 3.0V
0
5
10
15
20
25
0
5
10
15
20
25
0
5
10
15
20
25
100
95
LED CURRENT (mA)
STEP-UP REGULATOR EFFICIENCY
vs. INPUT VOLTAGE (25mA LED CURRENT)
100
90
LED CURRENT (mA)
STEP-UP REGULATOR EFFICIENCY
vs. INPUT VOLTAGE (4mA LED CURRENT)
100
90
LED CURRENT (mA)
TOTAL EFFICIENCY
vs. LED CURRENT (8 LEDs)
90
80
8 LEDs
80
8 LEDs
70
6 LEDs
70
85
6 LEDs
4 LEDs
60
4 LEDs
60
V IN = 3.0V
V IN = 3.6V
V IN = 4.2V
η TOTAL =
η
Σ V LEDi x I LEDi
i =1
INPUT_POWER
80
50
50
2.5
3.0
3.5
4.0
4.5
5.0
5.5
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0
5
10
15
20
25
INPUT VOLTAGE (V)
TOTAL EFFICIENCY
vs. LED CURRENT (6 LEDs)
INPUT VOLTAGE (V)
TOTAL EFFICIENCY
vs. LED CURRENT (4 LEDs)
LED CURRENT (mA)
TOTAL EFFICIENCY vs. INPUT VOLTAGE
(25mA LED CURRENT)
100
90
V IN = 3.6V
V IN = 3.0V
100
90
V IN = 3.0V
V IN = 3.6V
100
90
V IN = 4.2V
80
80
80
8 LEDs
70
V IN = 4.2V
70
70
6 LEDs
60
η TOTAL =
η
Σ V LEDi x I LEDi
i =1
INPUT_POWER
60
η TOTAL =
η
Σ V LEDi x I LEDi
i =1
INPUT_POWER
60
4 LEDs
50
0
5
10
15
20
25
50
0
5
10
15
20
25
50
2.5
3.0
3.5
4.0
4.5
5.0
5.5
LED CURRENT (mA)
LED CURRENT (mA)
INPUT VOLTAGE (V)
6
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