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参数资料
| 型号： | MAX1554ETA+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 4/11页 |
| 文件大小： | 0K |
| 描述： | IC LED DVR WHITE BCKLGT 8TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 电源电压： | 3.15 V ~ 5.5 V |
| 输出电压： | 40V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WDFN 裸露焊盘 |
| 供应商设备封装： | 8-TDFN-EP（3x3） |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | MAX1554ETA+TDKR |
High-Efficiency, 40V Step-Up
Converters for 2 to 10 White LEDs
Typical Operating Characteristics
(MAX1553 driving six white LEDs, V CC = V EN = 3.6V, Circuit of Figure 1, T A = +25°C, unless otherwise noted.)
100
EFFICIENCY vs. LOAD CURRENT
DRIVING 6 WHITE LEDS
100
EFFICIENCY vs. LOAD CURRENT
DRIVING 6 WHITE LEDS
100
EFFICIENCY vs. LOAD CURRENT
DRIVING 6 WHITE LEDS
90
80
V CC = 4V
V CC = 5V
90
80
V CC = 4V
V CC = 5V
90
80
V CC = 4V
V CC = 5V
70
V CC = 3.6V
V CC = 3V
70
V CC = 3.6V
V CC = 3V
70
V CC = 3.6V
V CC = 3V
60
50
L1 = 22 μ H
NO CAPACITOR ACROSS LEDs
60
50
L1 = 33 μ H
4700pF ACROSS LEDs
60
50
L1 = 47 μ H
4700pF ACROSS LEDs
0
5
10
15
20
0
5
10
15
20
0
5
10
15
20
100
LOAD CURRENT (mA)
EFFICIENCY vs. LOAD CURRENT
WITH MAX1554 DRIVING 9 WHITE LEDS
26
LOAD CURRENT (mA)
LED CURRENT
vs. INPUT VOLTAGE
26
LOAD CURRENT (mA)
LED CURRENT
vs. INPUT VOLTAGE
90
V CC = 4V
V CC = 5V
23
L1 = 22 μ H, NO CAPACITOR ACROSS LEDs
23
L1 = 22 μ H, NO CAPACITOR ACROSS LEDs
80
20
20
70
60
V CC = 3.6V
17
14
L1 = 47 μ H,
4700pF ACROSS LEDs
L1 = 33 μ H, 4700pF ACROSS LEDs
17
14
L1 = 47 μ H,
4700pF ACROSS LEDs
L1 = 33 μ H, 4700pF ACROSS LEDs
50
CIRCUIT OF FIGURE 3
11
R1 = 10 ? , V BRT = 1.25V
11
R1 = 14 ? , V BRT = 3.3V
0
5
10
15
20
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
26
23
20
17
LOAD CURRENT (mA)
LED CURRENT vs. INPUT VOLTAGE
WITH MAX1554 DRIVING 9 LEDS
35
30
25
20
15
INPUT VOLTAGE (V)
LED CURRENT
vs. BRT VOLTAGE
30
25
20
15
INPUT VOLTAGE (V)
LED CURRENT
vs. BRT DUTY CYCLE
10
10
14
11
CIRCUIT OF FIGURE 3
5
0
5
0
3.0
3.5
4.0
4.5
5.0
5.5
0
0.6
1.2
1.8
2.4
3.0
3.6
0
20
40
60
80
100
INPUT VOLTAGE (V)
BRT VOLTAGE (V)
BRT DUTY CYCLE (%)
4
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1555EZK | 制造商:Maxim Integrated Products 功能描述:SOT-23 DUAL-INPUT USB/AC ADAPTER 1- - Cut Tape Product |
| MAX1555EZK+ | 制造商:Maxim Integrated Products 功能描述:CHRGR LI-ION/LI-POL 280MA 4.2V 5PIN TSOT-23 - Rail/Tube |
| MAX1555EZK+T | 功能描述:电池管理 Dual USB/AC 1-Cell Li+ Battery Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX1555EZK+T | 制造商:Maxim Integrated Products 功能描述:CHARGER BATT LI+ USB/AC 5SOT23 制造商:Maxim Integrated Products 功能描述:CHARGER, BATT, LI+, USB/AC, 5SOT23 制造商:Maxim Integrated Products 功能描述:CHARGER, BATT, LI+, USB/AC, 5SOT23; Battery Type:Li-Ion, Li-Polymer; Input Voltage:7V; Battery Charge Voltage:4.2V; Charge Current Max:280mA; Battery IC Case Style:SOT-23; No. of Pins:5; No. of Series Cells:1; Operating Temperature ;RoHS Compliant: Yes |
| MAX1555EZK-T | 功能描述:电池管理 RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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