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| FW82801EB资料 | |
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FW82801EB PDF Download |
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File Size : 116 KB
Manufacturer:INTEL 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：FW82801EB 厂 家：INTEL 封 装：BGA 批 号：08+ 数 量：2000 说 明：绝对原厂原装现货热卖！！ |
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运 费： 所在地：深圳 新旧程度： |
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| 联系人：陈小姐 |
| 电 话：0755-83605789 |
| 手 机：13428979109 |
| QQ：656259901,307704921 |
| MSN：chenqiongxia18@126.com |
| 传 真：0755-23816523 |
| EMail：656259901@qq.com |
| 公司地址： 广东深圳市福田区华强北（振华路）赛格高科德电子市场A1848室 |
