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| L78L09ACU资料 | |
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L78L09ACU PDF Download |
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File Size : 116 KB
Manufacturer:ST Description:Current generation handheld computers and instruments typically use backlit liquid crystal displays (LCDs). Cold cathode fluorescent lamps (CCFLs) provide the highest available efficiency for backlighting the display, where providing the most light out for the least amount of input power is the most important goal. These lamps require high voltage AC to operate, mandating an efficient high voltage DC/AC converter. The lamps operate from DC, but migration effects damage the lamp and shorten its life- time. Lamp drive should ideally contain zero DC compo- nent. In addition to good efficiency, the converter should deliver the lamp drive in the form of a sine wave. This minimizes EMI and RF emissions, which can interfere with other devices and degrade overall operating efficiency. Sinusoidal CCFL drive also maximizes current-to-light conversion in the lamp. The circuit also permits lamp intensity control from zero to full brightness with no hysteresis or pop-on. |
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| 1PCS | 100PCS | 1K | 10K | ||
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型 号：L78L09ACU 厂 家：ST 封 装：SOT-89 批 号：09+ 数 量：30000 说 明：绝对全新原装大量现货，质量保证，欢迎来电查询 |
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运 费： 所在地： 新旧程度： |
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| 联系人：李利媛 |
| 电 话：0755/83019596,83247541,83247486 |
| 手 机：13480648723 |
| QQ：1104562168,1178139673,1113496577,2881934444,2881943289,2881943290 |
| MSN：ao-liteng01@hotmail.com,ao-liteng02@hotmail.com,ao-liteng03@hotmail.com,ao-liteng04@hotmail.com |
| 传 真：0755-83016216 |
| EMail：aoliteng1@163.com |
| 公司地址： 广东省深圳市福田区振兴西路新欣大厦B座518室 |
