| 瑞萨最新推出高换向性双向可控硅：BCR8LM-14LK |
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| (2012-1-11 16:22:36) 3342人次浏览 |
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瑞萨发布高换向性三端双向可控硅开关器件BCR8LM-14LK
瑞萨最新推出：高换向性、三端双向可控硅开关器件：BCR8LM-14LK
单击查看产品图片→浏览下载
瑞萨电子株式会社（以下简称“瑞萨电子”）发布一款高换向性三端双向可控硅开关器件BCR8LM-14LK，支持额定通态电流有效值（IT (RMS)）8安（A）和额定断态重复峰值电压（VDRM）700伏，可通过单片机（MCU）直接触发。此款新型三端双向可控硅开关器件可用于驱动洗衣机和冰箱等家用电器（白色家电）的交流电机、电磁阀和加热器等负载。
三端双向可控硅开关器件用于控制交流电路中的电源开关。由于门极触发电流（IGT）高，因此需要通过专用电路来放大传统MCU的输出电流。降低门极触发电流通常要以其他性能为代价。BCR8LM-14LK保持了现有TRIAC产品的性能，同时实现12毫安（mA）或更低的低门极触发电流，从而使其可以通过MCU直接驱动。这不再需要以前所需的放大电路，使得设计更紧凑、成本更低的驱动电路成为可能，其组件数量更少，并且功耗更低。
在家用电器（白色家电）领域，出于外观设计和能源效率等方面的考虑，近年来对用于交流电机、电磁阀和加热器等负载的更小巧、更省电的驱动电路的需求逐步上升。由此拉动了对于无需专用驱动电路、可通过MCU直接驱动的三端双向可控硅开关器件的需求。不过，三端双向可控硅开关器件的门极触发电流通常为30毫安或更高。将门极触发电流降至12毫安左右，以适应典型单片机的低电流输出，会导致换向特性和断态临界电压上升率（dv/dt）的恶化，而断态临界电压上升率对于防止故障十分重要。BCR8LM-14LK采用旨在降低门极触发电流的基本结构，并利用特殊的器件结构和工艺优化设计，在不影响TRIAC其他重要特性的情况下实现了仅12毫安或更低的门极触发电流。
BCR8LM-14LK器件是业界首款电压容限处于700伏等级的三端双向可控硅开关器件，保持了（(dv/dt)c）10 V/µs的高换向性，同时实现12毫安或更低的门极触发电流。与传统的三端双向可控硅开关器件不同的是，BCR8LM-14LK无需专用的驱动电路。因此，交流电机等系统可以使用更简单的驱动电路，从而有助于降低组件成本和功耗。
除额定通态电流有效值为8安的BCR8LM-14LK器件之外，瑞萨电子还计划推出12安、16安和20安的新产品，进一步壮大该系列的产品阵容。
除TO-220FL（UL认证）绝缘封装外，瑞萨电子还将提供一系列非绝缘封装，满足广泛的客户需求。
瑞萨BCR8LM-14LK三端双向可控硅开关器件的样品将于2012年1月上市，单价为1.0美元。
瑞萨计划在2012年3月开始批量生产，预计在2013年3月的月总产量达到300万件。
优势货源：可控硅元件→浏览下载 肖特基整流二极管→浏览下载 MOSFET-场效应管→浏览下载
其它相关型号了解：
BCR8LM-14LJ：三象限双向，8A，800V，30mA，VGT：1.5V，TO-220F
BCR8PM-14LJ：三象限双向，8A，800V，30mA，VGT：1.5V，TO-220F
BCR8LM-14LJ：PDF参数→浏览下载
BCR8PM-14LJ：PDF参数→浏览下载
BCR8LM-12LD：PDF参数→浏览下载
BCR8LM-12LB：PDF参数→浏览下载
BCR8LM-14LB：PDF参数→浏览下载
BCR8LM-14LD：PDF参数→浏览下载
优势货源：可控硅元件→浏览下载 肖特基整流二极管→浏览下载 MOSFET-场效应管→浏览下载
Renesas Electronics Introduces High-Commutation Power Semiconductor Device for
Motor Drive in Electric Household Appliances Enabling Direct Trigger via a Microcontroller (MCU)
Contributes to Reduced System Cost with Gate －
Triggering Currents of 12 mA or Less, Eliminating Need for Amplified Circuit
Renesas Electronics triac, the BCR8LM-14LK
TOKYO, Japan, December 16, 2011 — Renesas Electronics Corporation (TSE: 6723),
a premier provider of advanced semiconductor solutions,
today announced the availability of a high-commutation triac, the BCR8LM-14LK,
supporting rated RMS on-state current (IT (RMS) of 8-ampere (A) and rated repetitive peak off-voltage (VDRM) of 700V,
which can be triggered directly by a microcontroller (MCU).
The new triac can be used to drive loads such as AC (alternating current) motors,
solenoids, and heaters in electric household appliances (white goods) such as washing machines and refrigerators.
Triacs are used for controlling power supply switching in AC circuits. Due to their high gate trigger current (IGT),
a dedicated circuit is required to amplify the output current of a conventional MCU.
A lower gate trigger current typically has a tradeoff with other performance.
The new triac maintains the performance of existing TRIAC products,
while achieving a low gate trigger current of 12 milliamperes (mA) or less,
allowing it to be driven directly by a MCU. This eliminates the need for an amplified circuit,
required previously, and makes it possible to build drive circuits that are more compact,
cost less because they use fewer parts, and consume less power.
In the field of electric household appliances (white goods),
demand has increased in recent years for smaller and more power-efficient drive circuits for loads such as AC motors,
solenoids, and heaters due to considerations of visual design and energy efficiency.
This has created a need for triac products that require no dedicated driver circuit and can be driven directly by an MCU.
However, a triac typically has a gate trigger current of 30 mA or more.
Reducing this to around 12 mA to accommodate the low-current output of a －
typical microcontroller resulted in a worsening of the commutation characteristics,
and the rate of critical off-voltage rise (dv/dt), which is important for preventing malfunctions.
The new triac employs a basic structure designed to reduce the gate trigger current.
It utilizes a special device structure and process optimizations to achieve a gate -
trigger current of only 12 mA or less without degrading other important TRIAC characteristics.
The BCR8LM-14LK device is the industry's first triac with a voltage tolerance in the 700 V class to
maintain high commutation characteristics of ((dv/dt)c) 10V/µs while achieving a gate trigger current of 12mA or less.
Unlike conventional triac products, it requires no dedicated driver circuit.
This makes it possible to use a much simpler drive circuit for AC motors and the －
like and contributes to reduced component cost and lower power consumption.
Renesas intends to extend the series with new products having RMS on-state current ratings of 12A, 16A, and 20A,
in addition to the 8 A of the BCR8LM-14LK device. In addition to the insulated TO-220FL (UL-approved) package,
a lineup of non-insulated packages will be offered to meet a broad range of customer requirements.
Refer to the separate sheet for the main specifications of the new product.
Pricing and Availability
Samples of Renesas' BCR8LM-14LK triac will be available in January 2012, priced at US$1.0 per unit.
Mass production is scheduled to begin in March 2012 and －
is expected to reach a combined volume of 3,000,000 units per month in March 2013.
(Pricing and availability are subject to change without notice.)
About Renesas Electronics Corporation
Renesas Electronics Corporation (TSE: 6723), the world's number one supplier of microcontrollers,
is a premier supplier of advanced semiconductor solutions including microcontrollers,
SoC solutions and a broad range of analog and power devices.
Business operations began as Renesas Electronics in April 2010 through the integration of
NEC Electronics Corporation (TSE:6723) and Renesas Technology Corp.,
with operations spanning research, development, design and manufacturing for a wide range －
of applications. Headquartered in Japan,
Renesas Electronics has subsidiaries in 20 countries worldwide.
More information can be found at http://www.renesas.com.
优势货源：可控硅元件→浏览下载 肖特基整流二极管→浏览下载 MOSFET-场效应管→浏览下载
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