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
相关PDF资料
MAX17127ETP+ IC WLED DVR SIX STRING 20TQFN
MAX17149ETE+ IC LED DRVR 6CH STEP UP 16QFNEP
MAX17410EVKIT+ KIT EVAL FOR MAX17410 CTLR
MAX17605AUA+ IC MOSFET DRVR 4A DUAL 8UMAX
MAX1848ETA+T IC LED DRIVR WHITE BCKLGT 8-TDFN
MAX1912EUB+ IC LED DRVR WHITE BCKLGT 10-MSOP
MAX1916EZT+T IC LED DVR WHITE BCKLGT 6TSOT
MAX1986ETE+T IC LED DRVR WHITE BCKLGT 16-TQFN
相关代理商/技术参数
MAX17105EVKIT+ 功能描述:电源管理IC开发工具 MAX17105 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
MAX17106ETN+ 功能描述:PMIC 解决方案 PMIC for LCD RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel
MAX17106ETN+T 功能描述:其他电源管理 Integrated Circuits (ICs) Power Management - Specialized - IC REG STEP UP/HV STEPUP 56-TQFN RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel
MAX17106EVKIT+ 制造商:Maxim Integrated Products 功能描述:STEP-UP REGULATOR HIGH-VOLTAGE STEP-UP WITH TEMPERATURE COMP - Boxed Product (Development Kits)
MAX17107ETI+ 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
MAX17108ETI+ 功能描述:LCD Gamma缓冲器 10Ch Scan Driver & VCOM Amp RoHS:否 制造商:Maxim Integrated 输入补偿电压: 转换速度: 电源电压-最大:20 V 电源电压-最小:9 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-38 封装:Tube
MAX17108ETI+T 功能描述:LCD 驱动器 10Ch High-Volt & VCOM Amp RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube
MAX17108EVKIT+ 功能描述:电源管理IC开发工具 MAX17108 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V