Power Integrations推出全新900V InnoSwitch-EP IC，适用于工业及三相电源应用

美国加利福尼亚州圣何塞 - 致力于高能效电源转换的高压集成电路业界的领导者Power Integrations公司（纳斯达克股票代号：POWI）今日发布900 V恒压/恒流离线反激式开关IC器件，为InnoSwitch™-EP产品系列再添新成员。新器件适用于由高压直流或三相电供电的工业控制、电机驱动、仪表计量和可再生能源方面的应用，同时也适用于在输入浪涌和电压骤升情况下要求电源仍能连续工作的标准电网电压的应用。900 V InnoSwitch-EP IC实现的电源效率非常高，在双路输出的18 W设计中效率通常可达85%，不仅能省去散热片，还可设计出高度紧凑的电源。

Power Integrations应用工程总监David Chen表示："高压系统设计师通常面对的是功率为兆瓦级的应用环境，他们可能需要使用几毫瓦的功率为低压微处理器系统供电，或者需要使用数十瓦的功率为逆变器门极驱

动器供电。我们新推出的900 V InnoSwitch-EP器件可大幅简化应用于常见工业电压供电范围的电源设计，使得电源坚固耐用，可靠性很高。"

Power Integrations的InnoSwitch-EP IC产品系列于去年发布，它采用该公司符合安规要求的创新型FluxLink™磁感耦合技术，并集成同步整流及精确的次级侧控制方式，因此可设计出效率非常高的高可靠性电源，同时无需光耦器。新款900 V InnoSwitch-EP IC内部集成了功率更大的900 V的功率MOSFET，在450 VAC工业系统应用中可以提供很大的工作电压裕量，从而提高可靠性和使用寿命。新器件可以在最高450VAC的输入电压下连续工作。此外，输入欠压/过压保护 – 作为另外一层可以人为设定的保护措施，在输入电压升至650VAC时可以防止IC进行开关操作，从而可以保护整个电路。对于需要其电源适合全球应用环境的设计师而言，这种灵活性是一项巨大的优势。

900 V InnoSwitch-EP IC可以减少BOM元件数目，并省去其性能会随时间下降的光耦器，从而增强了电源的可靠性。采用此新器件的电源设计可超越所有国际能效标准对于能效的要求，如ENERGY STAR®、加州能源委员会标准、欧盟行为准则(CoC)、ErP指令以及美国能源部标准。它们已通过UL1577和TUV (EN60950)安全认证，符合EN61000-4-8 (100 A/m)和EN61000-4-9 (1000 A/m)标准。

900 V InnoSwitch-EP样品现已接受订购。该器件基于10,000片的订货量单价为每片0.95美元。

Power Integrations Serves Industrial and Three-Phase Power Supply Applications with New 900 V InnoSwitch-EP ICs

Safety-rated switcher ICs operate through line surges and swells

San Jose, Calif. – March 22, 2016 – Power Integrations (Nasdaq: POWI), the leader in high-voltage integrated circuits for energy-efficient power conversion, today announced the addition of a 900 V device to its InnoSwitch™-EP family of off-line CV/CC flyback switcher ICs. The new device targets power supplies operating from high-voltage DC and three-phase power sources found in industrial, motor-drive, metering and renewable energy applications, and standard mains-voltage applications where continuous operation during line swells and surges is required. The 900 V InnoSwitch-EP ICs are highly efficient – typically 85% for a dual output 18 W design – eliminating heat sinks and enabling highly compact power supply implementations.

Explains David Chen, director of applications engineering at Power Integrations: "Designers of high-voltage systems often have megawatts of power at their disposal, from which they may need to draw off a few milliwatts to feed a low-voltage microprocessor system, or a few tens of watts for inverter gate drivers. The new 900 V InnoSwitch-EP devices drastically simplify the design of robust highly reliable power supplies operating from commonly available industrial voltages."

Launched last year, Power Integrations’ InnoSwitch-EP IC family employs the company’s innovative, safety-rated FluxLink™ magneto-inductive coupling technology and includes synchronous rectification with accurate secondary-side regulation, resulting in highly efficient, reliable power supply circuits that do not need an optocoupler. The new 900 V InnoSwitch-EP ICs feature an uprated, integrated 900 V power MOSFET which provides a significant operating margin for 450 VAC industrial systems, increasing reliability and operational life. Working continuously with an input voltage of up to 450 VAC, an optional layer of protection - line UV/OV – prevents the IC from switching and protects the circuit up to 650 VAC. This flexibility is a huge benefit for designers of power supplies that suit all worldwide conditions.

900 V InnoSwitch-EP ICs enhance power-supply reliability by reducing BOM count to a minimum level and by eliminating optocouplers which degrade with time. Devices exceed all international energy-efficiency standards such as ENERGY STAR®, California Energy Commission and European Union Code of Conduct (CoC), ErP Directive, and the US Department of Energy standards. Devices are UL1577 and TUV (EN60950) safety-approved and EN61000-4-8 (100 A/m) and EN61000-4-9 (1000 A/m) compliant.

900 V InnoSwitch-EP samples are available now. Devices are priced at $0.95 in 10,000-piece quantities.