参数资料
型号: NCP5890MUTXG
厂商: ON Semiconductor
文件页数: 15/19页
文件大小: 0K
描述: IC LED DRVR WHITE BCKLGT 16-UQFN
产品变化通告: Product Obsolescence 07/Jul/2010
标准包装: 3,000
拓扑: PWM,升压(升压)
输出数: 3
内部驱动器:
类型 - 主要: 背光,闪灯/白光,照明管理装置(LMU)
类型 - 次要: RGB,白色 LED
频率: 1.13MHz ~ 1.47MHz
电源电压: 2.7 V ~ 5.5 V
输出电压: 30 V ~ 34 V
安装类型: 表面贴装
封装/外壳: 16-UFQFN 裸露焊盘
供应商设备封装: 16-UQFN-EP(3x3)
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
NCP5890
ILED Max
(25 mA, programmable)
Ambient Light
Gradual Dimming:
Photo sense
de ? activated
I ? setup
ILED Min (Programmable)
Photo Sense
The photo sense register is loaded with the I2C content
Ambient Light < I2C ILED : the Photo sense controls the ILED
The Photo Sense cannot force t he ILED below the pre ? programmed minimum level
The Photo Sense controls ILED within the Imin and I ? setup limits
When a Downward Gradual Dimming is engaged, the ILED is reduced from the level
defined by the Photo sense to the lower value defined by the gradual dimming register containt.
Figure 15. Basic Gradual Dimming and Photo Sense Operation Strategy
Figure 16. Basic Ambient Photo Sense Regulation (PSPICE simulation)
http://onsemi.com
15
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