参数资料
型号: MAX1553ETA+T
厂商: Maxim Integrated
文件页数: 5/11页
文件大小: 0K
描述: IC LED DRIVR WHITE BCKLGT 8-TDFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
恒定电流:
拓扑: PWM,升压(升压)
输出数: 1
内部驱动器:
类型 - 主要: 背光
类型 - 次要: 白色 LED
电源电压: 2.7 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: 带卷 (TR)
工作温度: -40°C ~ 85°C
High-Efficiency, 40V Step-Up
Converters for 2 to 10 White LEDs
Typical Operating Characteristics (continued)
(MAX1553 driving six white LEDs, V CC = V EN = 3.6V, Circuit of Figure 1, T A = +25°C, unless otherwise noted.)
SWITCHING WAVEFORMS
(CONTINUOUS OPERATION,
3.75V Li+ BATTERY, 18mA OUTPUT)
MAX1553/54 toc10
SWITCHING WAVEFORMS
(DISCONTINUOUS OPERATION,
3.75V Li+ BATTERY, 10mA OUTPUT)
MAX1553/54 toc11
V LX
V OUT
I L
V EN
V FB
V OUT
2 μ s/div
L1 = 47 μ H, 4700pF CAPACITOR ACROSS LEDs
STARTUP/SHUTDOWN WAVEFORMS
MAX1553/54 toc12
40ms/div
L1 = 22 μ H
10V/div
200mV/div
200mA/div
5V/div
200mV/div
10V/div
V LX
V OUT
I L
V BRT
V FB
V OUT
2 μ s/div
L1 = 47 μ H, 4700pF CAPACITOR ACROSS LEDs
BRT STEP RESPONSE
MAX1553/54 toc13
20ms/div
L1 = 22 μ H,
10V/div
200mV/div
200mA/div
1V/div
200mV/div
2V/div
V BRT = 0.5V TO 1.25V TO O.5V
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