Allegro MicroSystems, LLC Introduces New Off-Line PWM Controllers with Integrated Power MOSFET

January 14, 2014

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Worcester, MA – Allegro MicroSystems, LLC introduces a new family of off-line PWM controllers that incorporate both a sense MOSFET and a current mode PWM controller IC. This new series is offered by Allegro and manufactured and developed by Sanken Electric Co., Ltd. in Japan. The STR4A100 series is targeted at the appliance, office automation, consumer and industrial markets with key end applications to include audio visual, set top boxes, white goods and battery chargers.

This new series uses a secondary side regulation topology suitable for low power SMPS regulators in white goods and other applications. An auxiliary power supply, which is separated from the inverter or main power supply, may require high-efficiency and low stand-by power. The STR4A100 series makes it possible to lower the stand-by power to less than 10 mW. The low standby power is accomplished by the automatic switching between the PWM operation in normal operation and the burst-oscillation under light load conditions. The end result yields a high cost-performance power supply system with few external components.

The STR4A series is available in both DIP-8 and SOIC-8 packages.



Allegro MicroSystems, LLC 是开发、制造和销售高性能半导体的领先厂商。Allegro 独具创新的解决方案服务于汽车市场中的高增长应用,此外也开发办公自动化、工业和消费/通讯解决方案。Allegro 公司总部位于美国马萨诸塞州伍斯特市,在世界各地拥有设计、应用和销售支持中心。有关 Allegro 公司的更多信息,请登录zh.allegromicro.com

编辑联系人:

Stephanie Fennelly
营销公关总监
电话:(508) 854-5363
sfennelly@allegromicro.com
.

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