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德欧泰克以专项技术、持续研究和对行业的热情,保持其产品组合与市场的需求紧密相关。

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三相电源系统中的整流-模块化还是分立器件?

three-phase bridges

幸运的是,德欧泰克同时提供:

通孔式三相桥架,用于焊接,螺纹安装类型,带有快速接头,
或者,在节省空间的SMD封装中,6个分立半导体。
以下是所有这些类型的优点:



DBI25-16A
-    可焊在PCB上
-    孤立的外壳轮廓,可拧在散热器上或很容易夹住

DB35-16
-    高性能
-    将隔离的金属基板固定在散热器上

S5W
-    SMD轮廓DO-214AB/SMC用于自动组装到PCB上
-    性价比较高

用于光伏系统和高压电池存储的阻塞二极管

P2500Y

德欧泰克的 P2500Y 是一种理想的封闭二极管,用于光伏系统和高压电池存储。它提供了1600v的直流阻塞电压,2000 V的重复反向电压和25 mJ的雪崩额定值,用于抗短瞬变的鲁棒性。名义平均远期是25 A;由于环境温度在这些应用程序是高和冷却往往是一个问题,典型的直流电流负载被限制在大约10a。

数据表和上图显示了一种降低结热阻的方法,使其达到可能的最低值。作为一项特殊服务,德欧泰克可以提供已经根据图纸弯曲的引线。请与当地的德欧泰克销售办事处联系。

 

无线电动工具-电动工具产品中的电子设备概述

cordless power tools

人类的创造力和技能是任何产品的基本组成部分,只有使用正确的工具才能得到放大。

查看我们最新的应用说明,了解德欧泰克如何帮助提高效率,功率和电池寿命的无线电动工具项目。

设备模拟更接近真实生活- Spice模型提供额外的热特性

Spice

Software tools like Spice are widely used in electronics design and useful for simulation and optimization of circuits. Often the theoretical behaviour is, however, not matching to the later on real life testing, which requires in worst case a time consuming re-design. One reason for such mismatch is the lack of comprehensive thermal characteristics in Spice models, as offered by many suppliers. While e. g. the temperature behaviour of forward voltage and reverse leakage of semiconductor diodes are part of almost every Spice model, it is seldom provided for the voltage drift of Zener and TVS diodes, or the presumed constant current of CLDs (Current Limiting Diodes). And exactly that can cause an issue, when later the device is operated in the real circuit and gets unavoidable warm under load.

The Spice models provided by Diotec for its Zener and TVS diodes, CLDs but of course also all rectifiers are made with additional temperature characterisation.

Provided that Spice simulation is done with different temperature presettings, one can see the behaviour under real junction conditions and can adjust the circuit where necessary. The picture shows as an example the temperature behaviour of an uncompensated and a compensated CLD.

Spice models for Diotec products are accessible via www.diotec.com using simply the part search function.
Here just three examples for your testing:

ZMY18 [https://diotec.com/tl_files/diotec/files/spice/zmy18.zip]
P4SMAJ30A [https://diotec.com/tl_files/diotec/files/spice/p4smaj30a.zip]
CL10MD [https://diotec.com/tl_files/diotec/files/spice/cl10md.zip]

LDI812C-3.3SFA: 超低功耗LDO - 用于低功耗电子器件的高精度和高性能

LDI812C-3.3SFA

The Internet of Things is constantly evolving all around the world. Many of these devices are compact, wearable, battery powered or integrated into consumer and industrial electronics. Minimizing the battery discharge is an essential need for keeping these electronic gadgets work for long durations. It requires LDOs with very low quiescent currents, for minimizing power consumption during stand by mode.

The LDI812C-3.3SFA from Diotec is a CMOS based high voltage low-dropout positive voltage regulator, specifically designed for low-power electronics and battery operated systems where power savings are decisive. This device can be operated at a wide range of input voltage up to 16 V. It features a fixed output voltage of 3.3 V and output current rating of 50 mA. Dropout voltage is as low as 230 mV and quiescent current ultra-low at typically 1 µA.

The device facilitates minimal board space due to its small outline dimensions and a potentially smaller output ceramic capacitor of 1.0 µF.

 

Features

  • CMOS Based Voltage Regulator
  • Low Dropout of typically 230 mV
  • Quiescent Current typically 1.0 µA
  • Narrow Tolerance ± 2 %
  • Low Power Consumption

Applications

  • Internet of Things
  • Portable & Battery Powered Devices
  • Communication Devices

 

几乎所有类型的TVS二极管应用 - 绿色和可持续技术的高性能保护

TVS diodes

To design sustainable or "green" technologies means also to ensure longest possible lifetimes of electronic devices, once they are produced. An important item is here the protection against transient voltage peaks, as they occur on the power grid in case of lightning strikes. Transient Voltage Suppressors (TVS) prevent high voltage surges from damaging sensitive electronic circuits. Diotec offers TVS Diodes for almost all kind of applications, and from low up to very high voltage levels. Check out our latest Application Note to find the optimal TVS solution for your project.

1.35 A 低压差正向稳压器 : 高效率。小尺寸.

LDO

德欧泰克的 LDI1117 系列是正线性电压稳压器,具有低压差,输出电流高达1.35 A。它们在1 A时提供1.15 V的典型压降,并可在最高20 V的输入电压(最大额定电压)下工作。


部件可调输出电压,范围从1.25 V到13.65 V,只需两个额外的电阻设置。进一步提供的版本提供固定输出电压1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V或5.0 V。

所有版本都有集成的电流限制和热关闭电路,防止在过载情况下损坏。此外,其内部电路包括修剪带隙参考,确保紧凑输出电压精度1%公差。建议在输出端加入22pf,以衰减瞬态响应,保证稳定性。

它们以SOT-223、SO-8和SOT-89等低调且节省空间的包装形式提供。所有这些包装都是完全无铅的,完全符合ROHS和REACH,没有任何豁免。

特点

  • 低压差 : Typ. 1.15V
  • 窄公差
  • 电流限制&热过载保护
  • 完全无铅设备

 

应用

  • 开关模式电源的Post稳压器
  • 充电器
  • USB 设备
  • 活动SCSI终止调节器

智能汽车电子的极性保护-三种常见的解决方案及其优缺点

Reverse Polarity Protection

汽车电子电路必须防止极性颠倒。这样的事件可能会发生,例如在服务时间或车辆的启动。为此,硬件设计师必须采取适当的措施,以保持汽车电子产品在反向极性事件后的无损。
德欧泰克提供了广泛的AEC-Q101合格部件,以避免负电流流动。我们的应用说明描述了三种最常见的反极性保护解决方案,包括优点和缺点以及推荐的组件。

 

双向齐纳二极管单封装轮廓:二合一解决方案提供成本降低和节省板空间

MM3BZ18

来自德欧泰克的MM3BZ18将两个对立的18 V齐纳二极管组合在一个芯片上。它采用微型SMD外形SOD-323,尺寸仅为2.5 mm x 1.25 mm,外形高度仅为1 mm。因此,它非常适合于非常紧凑的电子组件。

形成一个双向齐纳二极管,这部分允许正负电压限幅仅由一个组件。它提供了一个急剧的齐纳电压击穿,标称18 V在1毫安,一个非常低的泄漏电流小于100 nA在13伏和高达200兆瓦的稳定状态功率耗散。

该设备非常适用于无刷电动工具的电机控制、宽范围输入级、智能家居和物联网应用等领域的交流电压限幅电路。二合一的配置使设计工程师能够减少组件数量,这不仅节省了电路板空间,还节省了材料和组装成本。

 

特点

  • 双向配置
  • 低漏电流
  • 板节省空间
  • 降低成本

 

应用

  • 电压限幅电路
  • 大范围输入级
  • 无刷电动工具的控制
  • 离线电池充电器
  • 智能家居和物联网应用

低成本且功能强大的负载保护二极管: LDP01和LDP02 D2PAK封装,可分别提供5 kW和6.6 kW的峰值脉冲功率

Load-Dump

尤其是在没有集中式负载突降保护的应用中,例如几辆摩托车,需要一种功能强大且具有成本效益的分布式板电子设备的负载突降保护。通常使用的封装外形DO-218AB具有高性能,但仅限于甩负荷TVS设备,因此只能以较小的体积运行,从而导致较高的设备成本。 D2PAK提供类似的外形,但它是行业标准封装,用于整流器和肖特基器件等大容量设备。 德欧泰克的 LDP01 和 LDP02 系列使用的TVS芯片可分别提供5 kW和6.6 kW的峰值脉冲功率;这两部分均可以根据ISO-16750-2 2012E –表5测试A通过负载突降脉冲。可用的第一部分是LDP01-26AYD2-AQ,LDP01-28AYD2-AQ和LDP02-28AYD2-AQ,适用于12 V系统。正在进行AEC-Q101认证,即将完成。有关负载突降保护二极管的一般信息,请参考我们的应用手册