Rogers公司的D391A是高度集成的场致发光(EL)灯驱动器,它是基于Rogers公司的专利三端口技术,提供内置的EMI屏蔽,同时具有大功率和高效率,和外接时钟兼容和输出过压保护,主要用在DFLXTM EL键盘灯,蜂窝手机和手持机,PDA,单色LCD和遥控等.本文介绍了D391A的主要特性,方框图以及标准测试电路和D391A EL驱动器配置参考图如3.0V手持机 DFLX键盘, 3.3V手持机 DFLX键盘和3.0V手持机LCD配置图.此外还介绍了D391A驱动多个EL灯电路图, 两级调光电路图和通过高频时钟PWM的EL亮度控制图.
D391A Electroluminescent Lamp Driver IC
Rogers DUREL? D391A driver is part of a family of highly integrated EL drivers based on Rogers’ patented three-port (3P) topology, which offers builtin EMI shielding. This high-performance device uses a proprietary circuit design to produce a low-noise wave shape for low-noise performance in applications that are sensitive to audible and electrical noise.
D391A主要特性:
? New Patented Low Noise Wave Shape
? Output Over Voltage Protection
? High Power and Efficiency
? External Clock Compatible
? High Performance With Low-profile Coils
? Lead-Free (Pb-free) and Green MSOP /DFN Packages
D391A应用:
DFLXTM EL Keypad Lamps
Cellular Phones and Handsets
Data Organizers/PDAs
Monochrome LCDs
Remote Controls
