tianbianren的专栏

Protections: Short circuit / Overload / Over voltage Alarm signal for AC OK and Battery low

1 光耦设计裕度的计算(英文) 12 光耦器件在变频器电路中的应用 11页 22 NEC光耦型号和命名参数图型资料手册 25页 33 安捷伦光耦型号汇总手册 36页 37 夏普光耦型号汇总手册 124页

TLP291 consists of photo transistor, optically coupled to a gallium arsenide infrared emitting diode. TLP291 is housed in the SO4 package, very small and thin coupler. Since TLP291 is guaranteed wide operating temperature (Ta=-55 to 110 ˚C) and high isolation voltage (3750Vrms), it’s suitable for high-density surface mounting applications such as small switching power supplies and programmable controllers

S Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q101 Qualified and PPAP Capable • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant

Features • Provides Robust Interface between D.C. Relay Coils and Sensitive Logic • Capable of Driving Relay Coils Rated up to 150 mA at 12 Volts • Replaces 3 or 4 Discrete Components for Lower Cost • Internal Zener Eliminates Need for Free−Wheeling Diode • Meets Load Dump and other Automotive Specs • SZ Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q101 Qualified and PPAP Capable • These are Pb−Free Devices

1080P 高清图像质量 •采用 SONY 高性能星光级 CMOS 传感器 •采用自主专用自动聚焦芯片，对焦准确且快 •强大的变焦能力，优异的自动对焦性能 •支持自动光圈，电子快门功能，适应不同监控环境 •内置网络编码功能，支持 ONVIF， 28181 协议 •支持多语言 OSD 功能 •支持双向音频对讲功能 •支持本地 SD 卡存储功能 •可选配智能功能

Features • Low dropout voltage (1 V typ.) • 2.85 V device performances are suitable for SCSI-2 active termination • Output current up to 800 mA • Fixed output voltage of: 1.2 V, 1.8 V, 2.5 V, 3.3 V, 5.0 V • Adjustable version availability (VREF = 1.25 V) • Internal current and thermal limit • Available in ± 1 % (at 25 °C) and 2 % in full temperature range • Supply voltage rejection: 75 dB (typ.)

Features: •Halogens free (Br <900 ppm ,Cl <900 ppm , Br+Cl < 1500 ppm) •Current transfer ratio (CTR: 50~600% at IF =5mA, VCE =5V) •High isolation voltage between input and output (Viso=3750 V rms ) •Compact 4 Pin SOP with a 2.0 mm profile •Compliance with EU REACH •Pb free and RoHS compliant •UL and cUL approved (No. E214129) •VDE approved (No. 132249) •SEMKO approved •NEMKO approved •DEMKO approved •FIMKO approved

EMC 标准基本分类： 基础标准：主要包括术语，测试方法等，不涉及具体产品。 通用标准：特定环境下(1, 居住，商业和轻工业； 2，工业环境)的最低要求。如果某产品 无对应产品标准，可使用通用标准。 产品系列标准： 适用于一组类似的产品，系统的标准，如信息技术设备，电动工具等。 专用产品标准： 针对产品的特殊性对实验项目和电磁兼容性能做了特别规定。应该优先采 用

移远4G模块，ec20的指示灯与状态的对应关系表，方便快速准确判断EC20的工作状态，注意自己的指示灯电路，有可能是反的。适合发个客户或者给测试人员。

High voltage and high current: VCEO = 50 V, IC = 150 mA (max) • Excellent hFE linearity : hFE (IC = 0.1 mA)/ hFE (IC = 2 mA) = 0.95 (typ.) • High hFE: hFE = 70 to 700 • Low noise: NF = 1dB (typ.), 10dB (max) • Complementary to 2SA1162 • Small package

电子方向三大软件合集 Multisim教程应用 altium Shortcut Keys和protue

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我自己常用的芯片资料ADC0809CCN.pdf ADC0809中文资料.pdf l289资料.pdf 中国集成电路大全 HTL集成电路.pdf 最新集成电路应用300例.pdf