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| el2082cs资料 | |
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el2082cs |
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file size : 116 kb
manufacturer:altera description:the max5942a/max5942b integrate a complete power ic for powered devices (pd) in a power-over-ethernet (poe) system. the max5942a/max5942b provide a pd interface and a compact dc-dc pwm controller suitable for flyback and forward converters in either isolated or nonisolated designs. the max5942a/max5942b pd interface complies with the ieee 802.3af standard, providing the pd with a detec- tion signature, a classification signature, and an integrat- ed isolation switch with programmable inrush current control. these devices also feature power-mode under- voltage lockout (uvlo) with wide hysteresis and power- good status outputs. the max5942a/max5942b also integrate all the build- ing blocks necessary for implementing dc-dc fixed- frequency isolated power supplies. this device is a current-mode controller with an integrated high startup circuit suitable for isolated telecom/industrial voltage range power supplies. a high-voltage startup circuit allows the pwm controller to draw power directly from the 18v to 67v input supply during startup. the switching frequency is internally trimmed to 275khz 10%, thus reducing magnetics and filter components. the max59412a allows an 85% operating duty cycle and can be used to implement flyback converters. the max5942b limits the operating duty cycle to less than 50% and can be used in single-ended forward converters. the max5942a/max5942b are designed to work with or with- out an external diode bridge in front of the pd. the max5942a/max5942b are available in 16-pin so packages. |
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| 1pcs | 100pcs | 1k | 10k | ||
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型 号：el2082cs 厂 家：altera 封 装：sop 批 号：02 数 量：1620 说 明：优势库存现货，部分无铅 |
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运 费： 所在地： 新旧程度： |
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| 联系人：林浩/林妮 |
| 电 话：0755-82532799/82532766/83989559 |
| 手 机：13510168121/13725556003 |
| qq：496982847/351622092 |
| msn：linearic@hotmail.com |
| 传 真：0755-82532766 |
| email：maxim_zi@126.com |
| 公司地址： 深圳市福田区佳和大厦b座1802室 门市部：华强广场 q2a114展销柜 |
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