参数资料
型号: MAX8631YETI+W
厂商: Maxim Integrated
文件页数: 7/15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.)
LDO DROPOUT VOLTAGE
SINGLE-WIRE DIMMING RESPONSE
MAX8631X toc19
140
vs. OUTPUT CURRENT
V ENM1,
V ENM2
I OUT
5V/div
0V
500mA/div
0A
120
100
80
60
40
V OUT
2V/div
0V
20
0
10ms/div
0
50
100
150
200
OUTPUT CURRENT (mA)
LDO OUTPUT VOLTAGE
1.0
0.8
ACCURACY vs. OUTPUT CURRENT
LOAD-TRANSIENT RESPONSE
MAX8631X toc22
V LDO_ = 2.6V
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
V LDO_
I LDO_
50mV/div
AC-COUPLED
100mA
1mA
0
50
100
150
200
10 μ s/div
OUTPUT CURRENT (mA)
LOAD-TRANSIENT RESPONSE
NEAR DROPOUT
MAX8631X toc23
V IN - V OUT = 77mV, V LDO_ = 2.6V
V LDO_
50mV/div
AC-COUPLED
100mA
I LDO_
1mA
10 μ s/div
_______________________________________________________________________________________
7
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