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参数资料
| 型号： | MAX8790ETP+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 7/24页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHITE BCKLGT 20-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： | 6 |
| 内部驱动器： | 无 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1MHz |
| 电源电压： | 4.5 V ~ 5.5 V，5.5 V ~ 26 V |
| 输出电压： | 5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WFQFN 裸露焊盘 |
| 供应商设备封装： | 20-TQFN-EP |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
Six-String White LED Driver with Active
Current Balancing for LCD Panel Applications
Typical Operating Characteristics (continued)
( Circuit configuration 1, V IN = 12V, V SHDN = V IN , LEDs = 8 series x 6 parallel strings, ISET = V CC , T A = +25°C, unless otherwise noted.)
SWITCHING WAVEFORMS
(BRT = 15%, ANALOG DIMMING)
MAX8790 toc10
STARTUP WAVEFORMS
(BRT = 100%, DPWM DIMMING)
MAX8790 toc11
SHDN
LED CURRENT WAVEFORMS
(BRT = 50% AT 200Hz, DPWM DIMMING)
MAX8790 toc12
BRT
0V
5V/div
0V
5V/div
V LX
10V/div
0V
V OUT
20V/div
0V
V FB1
5V/div
0V
I L
500mA/div
V CCV
0V 2V/div
I L
I LED
0mA 100mA/div
I L
1 μ s/div
0mA
4ms/div
0A
1A/div
2ms/div
0A
1A/div
LED CURRENT WAVEFORMS
(BRT = 1% AT 200Hz, DPWM DIMMING)
MAX8790 toc13
BRT
LED CURRENT WAVEFORMS
(BRT = 50% AT 200Hz, ANALOG DIMMING)
MAX8790 toc14
BRT
0V
0V
5V/div
V FB1
5V/div
0V
0V
5V/div
V FB1
1V/div
I LED
0mA 100mA/div
I L
I LED
0mA 50mA/div
I L
0A
1A/div
0A
1A/div
1ms/div
LED CURRENT WAVEFORMS
(BRT = 1% AT 200Hz, ANALOG DIMMING)
MAX8790 toc15
BRT
1ms/div
LED-OPEN FAULT PROTECTION
(BRT = 100%, LED OPEN ON FB3)
MAX8790 toc16
V FB3
0V
0V
5V/div
V FB1
2V/div
0V
0V
1V/div
V FB1
10V/div
I LED
0mA 50mA/div
I L
V OUT
0V 20V/div
I L
1ms/div
0mA
500mA/div
20ms/div
0A
1A/div
_______________________________________________________________________________________
7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8790EVKIT+ | 功能描述:LED 照明开发工具 RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
| MAX8791AGTA+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX8791AGTA+T | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX8791BGTA+ | 功能描述:功率驱动器IC Single-Phase Synch MOSFET Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 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:SOIC-8 封装:Tube |
| MAX8791BGTA+T | 功能描述:功率驱动器IC Single-Phase Synch MOSFET Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 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:SOIC-8 封装:Tube |
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