最新动态
Jump Start a Combustion Engine from an Electric Vehicle? It works! And is the reason why also EVs need load dump protection
Though the main power train of electrical vehicles use a high voltage battery, all these cars have still the traditional 12 V battery on board. Reason is that most electronic and electrical systems in a car - lights, screen-wiper, infotainment etc. - are made for that voltage level. This battery is further used for the switch to connect and disconnect the high voltage system when the car is started or stopped. As such, EVs can jump start cars using a combustion engine - and also vice versa!
At that procedure, load dump protection becomes important. A load dump transient is the voltage surge generated when the battery is disconnected while the alternator is connected. This typically happens if a discharged car battery is powered up by a second one and afterwards jump leads are removed. The peak voltage of this surge may be as high as 120 V and the surge may take up to 400 ms to decay. It is typically clamped to 40 V in 12 V vehicles (cars) and about 60 V in 24 V systems (trucks).
Diotec's new application note "Automotive Load Dump Protection" describes suitable TVS diodes for surges according to "Test A" (elements for centralized suppression) as well as "Test B" (distributed protection of on-board electronics), all described in the standard ISO16750-2.
从电动汽车快速启动内燃机？ 有用！ 这也是为什么电动汽车也需要抛负载保护的原因
Protectifiers®-额外提供安全性和低功耗
尽管电动汽车的主要动力传动系使用高压电池，但所有这些汽车仍配备了传统的12 V电池。原因是汽车中的大多数电子和电气系统（灯光，雨刮器，信息娱乐系统等）都是针对该电压水平而制造的。当汽车启动或停止时，该电池还用于连接和断开高压系统的开关。因此，电动汽车可以使用内燃机来启动汽车，反之亦然！
在此过程中，抛负载保护变得很重要。负载瞬间突降是指在连接交流发电机后断开电池连接时产生的电压浪涌。通常会发生这种情况，如果放电的汽车电池由第二个电池供电，然后跳线会被移除。此浪涌的峰值电压可能高达120 V，并且该浪涌可能需要长达400 ms的时间才能衰减。在12 V系统车辆（汽车）中通常钳位到40 V，在24 V车辆系统（卡车）中钳位到60V。
Diotec的研发的新应用 “汽车抛负载保护”中，描述了适用于浪涌的TVS二极管，所有产品都符合标准ISO16750-2 中“ Test A”（用于集中抑制的元件）以及“ Test B”（车载电子设备的分布式保护）。
新应用：汽车抛负载保护
适用于电源应用的分立器件解决方案-TO-220和D²PAK中的整流二极管
分立器件在各种应用中都是最基础的技术。 它们为多种电源电路提供了经济高效，坚固耐用，易于组装且高可靠的解决方案。 德欧泰克半导体的二极管产品组合包括标准恢复，快恢复，超快恢复和肖特基。 既有封装是TO-220AC（2引脚）和AB（3引脚）的单二极管和双二极管，也有有2引脚和3引脚D²PAK封装（TO-263AA和AB）的产品。
德欧泰克半导体在TO-220封装中，使用其专利Protectifiers®，使其产品可以在高反强度下提供Low Vf，对产品做到真正的保护。
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最新产品：适用于电源应用解决方案的分立器件---TO-220和D²PAK封装
分立器件在各种应用中都是最基础的技术。 它们为多种电源电路提供了经济高效，坚固耐用，易于组装且高可靠的解决方案。 德欧泰克半导体的二极管产品组合包括标准恢复，快恢复，超快恢复和肖特基。 既有封装是TO-220AC（2引脚）和AB（3引脚）的单二极管和双二极管，也有有2引脚和3引脚D²PAK封装（TO-263AA和AB）的产品。
德欧泰克半导体在TO-220封装中，使用其专利Protectifiers®，使其产品可以在高反压可靠性正向导通压降非常低，对产品做到真正的保护！
德欧泰克半导体致力于开发分立器件，提供优化的解决方案，以节省更多的能源并提高现代功率电子产品的性能。 请下载相关 TO-220 和 D²PAK 封装的新产品之宣传单!
产品特性：
- Hl 高电流密度: 8A-30A
- 低功耗，高效率
- 高可靠性/热效率封装
- 轻易与不同规格散热器组装
- 单芯片或者双芯片的产品
- TO-220封装:
- TO-220AC & AB (2个引脚& 3个引脚)
- 包含专利Protectifiers®
- 使用第三代肖特基芯片
- 产品范围包括标准恢复，快恢复，超快恢复
- D²PAK封装:
- ● TO-263AB 和 TO-263AA(2个引脚& 3个引脚)
- 使用第三代肖特基芯片
- 产品范围包括标准恢复，快恢复，超快恢复
典型应用
- 开关电源 (SMPS)
- DC / DC 转换器
- AC 和 DC 驱动器
- 输入 和 输出 的整流器
- 功率校正 (PFC)
- 续流二极管
- 极性保护
- OR-ing 电路
用于工业和汽车领域的高温/高压肖特基二极管
德欧泰克公司生产的 MBRS20200CT 和 MBR20200CT 是高温肖特基二极管，具有非常低的反向漏电流。产品包括D²PAK和TO-220AB两种封装类型，共阴极并内含为两个芯片。它们的特点是平均正向电流额定值为2×10 A, Vrrm为200 V。这些器件针对工业和汽车应用的高温工作环境进行优化，最高结温度可达175℃。
应用包括开关模式电源和电池充电器，高频操作伴随着电压输出24伏甚至48伏。当部件紧密地组装在同一个散热片上时，可实现大电流输出的并联操作。与传统的150℃肖特基势垒二极管相比，每个部分的极低的泄漏电流保证了高的抗热失控稳定性。低正向压降使功率损耗小，效率高。
产品特性
- 较高的结温度: 最大节温度 = 175 °C
- 重复峰值反向电压为200 V
- 较低的反向漏电流
- 低正向压降
- 并行操作可能
典型应用
- 充电器
- DC/DC 转换器
- 输出整流器
- OR-ing 二极管
- 极性保护
Want to do automatic assembly of the Bridge Rectifier to the PCB as well? Here is the solution! S16MSD2 - Half Bridge in D²PAK allows for full PCB assembled Power Rectifier Stages
When it comes to power bridge rectifiers, design engineers have to go back to through-hole devices which first need to be soldered onto the PCB, and then screwed to an extra heat-sink. These are manual assembly steps, which cost time and effort and also bear the risk of potential failures.
Other power semiconductors such as MOSFETs or IGBTs and diodes for the PFC, converter and inverter stage or brake chopper, are widely available in SMD outlines like the well known D²PAK. They can be assembled fully automatic by pick&place machines and afterwards solder process, at high speed and with constant quality.
The S16MSD2 half bridge closes the gap which was up to now at the input rectifier stage. Two of these parts form a full bridge, which can be assembled in the same process step than the other power semiconductors. Like for those, cooling is done via the PCB metallization. So the entire power stage can be done in one time and with the same concept.
Features/Benefits
- Half bridge in SMD
- Two parts build a full bridge
- For fully automatic assembly
- High power dissipation
Typical Applications
- 50/60 Hz Mains Rectification
- Power Supplies
- Battery Chargers
- Drive Inverters
适用于电源应用的分立器件解决方案-TO-220和D²PAK中的整流二极管
分立器件在各种应用中都是最基础的技术。 它们为多种电源电路提供了经济高效，坚固耐用，易于组装且高可靠的解决方案。 德欧泰克半导体的二极管产品组合包括标准恢复，快恢复，超快恢复和肖特基。 既有封装是TO-220AC（2引脚）和AB（3引脚）的单二极管和双二极管，也有有2引脚和3引脚D²PAK封装（TO-263AA和AB）的产品。
德欧泰克半导体在TO-220封装中，使用其专利Protectifiers®，使其产品可以在高反强度下提供Low Vf，对产品做到真正的保护。
DI6206 Series: Longer Operating Times for Battery-powered Electronics
DI6206 Series from Diotec is a high precision CMOS based low drop out voltage regulator. The device is compatible with low ESR ceramic capacitors. It provides output currents over 200 mA and fixed output voltages of 1.5 V to 3.6 V from an input voltage of 7.0 V. Special features like very low quiescent current and low dropout voltage enables usage in low power applications, and allows for longer operation times of battery-powered electronics. Parts include additionally a current limit and short-circuit protection. For more information download our new LDO flyer.
Features:
- Very Low Quiescent Current: typ. 1uA
- Low Dropout Voltage: typ. 250 mV
- Maximum Output current: 200mA
- Output Voltage from 1.5V to 3.6V
- Output Voltage Accuracy: ±1% and ±2%
- Operating Temperature Range: -40°C to 85°C
- Compatible with Low ESR Ceramic Capacitors
- Built in Current Limiting Circuit
Typcial Applications:
- Battery powered electronic devices
- Mobile / Smart Phones
- Digital Cameras and Camcorders
- Home Automation Systems
- Game Console