参数资料
型号: MAX17105ETG+T
厂商: Maxim Integrated
文件页数: 9/26页
文件大小: 0K
描述: IC LED DRVR WHITE BCKLGT 24-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: 8
内部驱动器:
类型 - 主要: 车载,背光
类型 - 次要: 白色 LED
频率: 500kHz ~ 2MHz
电源电压: 6 V ~ 28 V
安装类型: 表面贴装
封装/外壳: 24-WFQFN 裸露焊盘
供应商设备封装: 24-TQFN-EP(4x4)
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
8-String WLED Driver with Integrated Step-Up
Regulator and SMBus/PWM Dimming Capability
Typical Operating Characteristics (continued)
(T A = +25°C, unless otherwise noted.)
SWITCHING WAVEFORMS
(V S = 24V, BRIGHTNESS = 100%)
MAX17105 toc10
V LX
20V/div
0V
INDUCTOR
CURRENT
500mA/div
STARTUP WAVEFORMS
(BRIGHTNESS = 100%)
MAX17105 toc11
V EN
5V/div
0V
V FAULT
10V/div
0V
V LX
20V/div
0V
V OUT
20V/div
1 F s/div
0A
DIRECT-PWM MODE
2ms/div
0V
STARTUP WAVEFORMS
(BRIGHTNESS = 20%)
MAX17105 toc12
DIRECT-PWM MODE
2ms/div
V EN
5V/div
0V
V FAULT
10V/div
0V
V LX
20V/div
0V
V OUT
20V/div
0V
LED CURRENT WAVEFORMS
(BRIGHTNESS = 50%)
MAX17105 toc13
2ms/div
V FB1
10V/div
0V
I LED
20mA/div
0A
INDUCTOR CURRENT
500mA/div
0A
V OUT
20V/div
0V
LED CURRENT WAVEFORMS
(BRIGHTNESS = 1%)
MAX17105 toc14
DIRECT-PWM MODE
2ms/div
V FB1
10V/div
0V
I FB1
20mA/div
0A
INDUCTOR CURRENT
1A/div
0A
V OUT
20V/div
0V
LED-OPEN FAULT PROTECTION
(BRIGHTNESS = 100%, LED OPEN ON FB1)
MAX17105 toc15
V FB1
1V/div
0V
V FB2
10V/div
0V
V OUT
20V/div
0V
I FB2
20mA/div
0A
400 F s/div
________________________________________________________________________________________
9
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