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AN-6019C Fairchild 模拟开关产品
ESD 性能测试方法概要
www.fairchildsemi.com
REV. 1.0.0 • 5/5/06
模拟开关通常会被置放于印刷电路板接口连接 处，用于路由或隔离输入或输出信号。基于这 样的原因，
Fairchild 模拟开关具有工业界最卓
越的ESD
性能。通过对我们的产品进行严格的JEDEC
标准测试，Fairchild 认为我们可以给用 户提供放心和卓越的保护。这篇应用概要提供 了Fairchild 模拟开关产品的 ESD
测试方法。HBM:
人 体 静 电 模 型 （HBM）是 严 格 根 据JEDEC JESD22-A114 要求来进行的。该测试是
模拟实际生活中人与集成电路接触的情形。HBM
冲击是通过一个如图1
所示的简单电容电 阻组合电路产生的。JEDEC标准要求对每一个 管脚组合进行一个正向和负向冲击。通过或失 败是根据是否满足产品说明书的参数要求来决 定的。一旦整个集成电路的性能被确定，特定I/O
管脚对地ESD
性能会另外加以测试，因为 这些管脚在实际应用中最有可能受到ESD
静电 冲击。该对地ESD
性能指标会反映在产品说明 书上。图
1：JEDEC JESD22-A114 标准中的人体静电
模型 （HBM）测试电路CDM: 器件充电模式 (CDM) 测试是模拟集成电
路发生在自动封装过程中的潜在的ESD
情形。几百伏甚至几千伏可以在封装环境中检测到。
为了模仿以上情形并加以保护，
Fairchild
模拟开关产品均根据JEDEC JESD22-C101 要求来进 行测试的。所有
IC
连接管脚与接地管脚间均加 以正负压放电测试。CDM
性能指标同样会反 映在产品说明书上。MM:
机器模式 （MM）测试已经被使用多年用 来描述机器和机器间的ESD
放电情形。国际ESD
界认为机器模式 （MM）波形不真实地反 映实际应用中的ESD
情形。然而，由于机器模 式 （MM）已 经 被 作 为 产 品 性 能 的 标 准，Fairchild 会根据用户需求提供该测试的结果。
Fairchild
的 机 器 模 式 测 试 是 根 据JEDEC JESD22-A115
标准来进行的。Fairchild
的模拟开关产品ESD
性能 在市场上处 于领先地位。作为一个实例请参考图2
的USB
开关FSUSB30
的性能。如果您有进一步的问题 或需要具体的ESD
测试来满足您的应用需求，我们非常乐意为您提供帮助。
图
2
：Fairchild
的FSUSB30
的ESD
静电保护性 能与竞争对手的比较Fairchild Semiconductor Analog Switch Products www.fairchildsemi.com/analogswitch
1000 2000 3000 4000 5000 6000 7000 8000
FSUSB30 (8000 V Min)
Competitor Equivalent
ESD PROTECTION
V Minimum
Figure 2. Fairchild’s FSUSB30 ESD protection vs. competitor performance
Figure 1. Human Body Model Test Circuit as outlined
in JEDEC JESD22-A114
REV. 1.0.0 • 5/5/06
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FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.
2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
© 2006 Fairchild Semiconductor Corporation • www.fairchildsemi.com
AN-6019C APPLICATION NOTE
www.onsemi.com 1
ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.
ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
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