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| rtl8100cl资料 | |
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rtl8100cl |
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file size : 116 kb
manufacturer:realtek description:the lm3519 is a step-up converter for white led applica- tions that uses a unique and proprietary pulse frequency modulation (pfm) architecture to optimize high efficiency at high frequency operation. unlike most pfm architecture implementations, the lm3519s unique architectural imple- mentation results in non-pulse skipping variable frequency operation. the regulator is forced to operate at the edge of continous conduction mode (ccm). the error amplifier will set the end of the on-time (ipeak of inductor) based on the load (leds) current. during this operation, the inductor cur- rent ramps up and reaches a peak current at end of the on-time. at this point, the internal power switch is turned off until the inductor current reaches zero, and the cycle repeats again. the switching frequency is set based on the charge (on-time) and discharge(off-time) of the inductor current. the frequency can range between 2mhz to 8mhz over the op- erating input range. the lm3519 operation can be best understood through an examination of the block diagram in figure 2. when led |
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| 1pcs | 100pcs | 1k | 10k | ||
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型 号：rtl8100cl 厂 家：realtek 封 装：lqfp128 批 号：0812 数 量：5260 说 明：特价出售，全新原装公司现货. |
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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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