参数资料
型号: MAX8631YETI+W
厂商: Maxim Integrated
文件页数: 6/15页
文件大小: 0K
描述: IC LED DRVR WHITE BCKLGT 28-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 75
恒定电流:
拓扑: 线性(LDO),切换式电容器(充电泵)
输出数: 8
内部驱动器:
类型 - 主要: 背光,闪灯/白光
类型 - 次要: 白色 LED
频率: 1MHz
电源电压: 2.7 V ~ 5.5 V
输出电压: 5V
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(4x4)
包装: 管件
工作温度: -40°C ~ 85°C
1x/1.5x/2x White LED Charge Pump with Two
LDOs in 4mm x 4mm Thin QFN
Typical Operating Characteristics (continued)
(V IN = V EN_ = 3.6V, Circuit of Figure 1, T A = +25°C, unless otherwise noted.)
INDIVIDUAL FLASH LED CURRENT
1000
100
10
vs. R SETF
V OUT
V IN
I IN
OPERATING WAVEFORMS (1x MODE)
MAX8631X toc14
50mV/div
AC-COUPLED
20mV/div
AC-COUPLED
2mA/div
AC-COUPLED
4 MAIN LEDS AT 20mA EACH
1
1
10
100
400ns/div
R SETF (k Ω )
OPERATING WAVEFORMS (1.5x MODE)
MAX8631X toc15
OPERATING WAVEFORMS (2x MODE)
MAX8631X toc16
V OUT
V IN
50mV/div
AC-COUPLED
20mV/div
AC-COUPLED
V OUT
V IN
50mV/div
AC-COUPLED
20mV/div
AC-COUPLED
4 MAIN LEDS AT 20mA EACH,
FLASH AT 400mA TOTAL
I IN
2mA/div
AC-COUPLED
I IN
2mA/div
AC-COUPLED
4 MAIN LEDS AT 20mA EACH
400ns/div
STARTUP AND SHUTDOWN
MAIN LED RESPONSE
MAX8631X toc17
400ns/div
STARTUP AND SHUTDOWN
FLASH LED RESPONSE
MAX8631X toc18
V ENM_
4 MAIN LEDS AT 20mA EACH
5V/div
0V
V ENF
4 MAIN LEDS AT 20mA EACH,
400mA TOTAL FLASH
5V/div
0V
100mA/div
500mA/div
I OUT
0A
I IN
0A
500mA/div
I OUT
0A
V OUT
5V/div
1ms/div
0V
V OUT
1ms/div
5V/div
0V
6
_______________________________________________________________________________________
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