19104917473
首页
公司简介
产品中心
新闻中心
案例展示
联系我们
电话咨询
输入您的电话,即刻取得联系
返回顶部
MAX14514 业内最灵活的双通道EL驱动器
发布时间:2010-04-25
浏览次数:1167 次

MAX14514 业内最灵活的双通道EL驱动器

The MAX14514 is a high-voltage DC-AC converter ideal for driving two electroluminescent (EL) lamps. The MAX14514 features a +2.7V to +5.5V input range that allows the device to accept a wide variety of voltage sources, including single-cell lithium-ion (Li+) batteries. The lamp outputs of the device generate up to 300VP-P for maximum lamp brightness.

MAX14514 pdf:http://www.elecfans.com/soft/39/2010/2010042573975.html

The MAX14514 utilizes an inductor-based boost converter to generate the high voltage necessary to drive EL lamps and allows the use of a 220µH inductor to effectively drive total combined lamp sizes of up to 20nF.

The MAX14514 uses a high-voltage full-bridge output stage to convert the high voltage generated by the boost converter to an AC waveform suitable for driving the EL panels. An external resistor controls the slew-rate of the rising and falling edges of the AC drive waveform to reduce audible noise output. The high-voltage outputs are ESD protected up to ±15kV Human Body Model, ±4kV IEC61000-4-2 Air Gap Discharge, and ±4kV IEC61000-4-2 Contact Discharge.

The MAX14514 features dimming/enable controls (DIM1, DIM2) for each output to allow the user to set the peak-to-peak output voltage with a PWM signal, a DC analog voltage, or a resistor connected from DIM_ to GND. The MAX14514 also provides a slow turn-on/-off feature that slowly ramps the output voltage applied to the lamp when enabled or disabled.

The MAX14514 enters a low-power shutdown mode when the EN and DIM_ inputs are connected to GND. The device also features thermal shutdown if the die temperature exceeds 158°C (typ).

The MAX14514 is available in a space-saving, 14-pin, 3mm x 3mm TDFN package and is specified over the extended -40°C to +85°C operating temperature ran

  • Dual ±15kV ESD-Protected EL Lamp Outputs
  • 300VP-P Maximum Output for Highest Brightness
  • +2.7V to +5.5V Input Voltage Range
  • Resistor Adjustable Slew-Rate Control
  • Resistor Adjustable Lamp and Switching Converter Frequencies
  • DIM Input for Controlling Output Voltage Through DC Analog Voltage, PWM, or Resistor to GND
  • Capacitor Adjustable Soft Turn-On/Off
  • Low 150nA Shutdown Current
  • Thermal Shutdown
  • Space-Saving, 14-Pin, 3mm x 3mm TDFN Package
  • 应用/使用

    汽车仪表盘
    键盘背光
    LCD背光
    PDA/智能电话

    相关新闻
     山茶科是在宏观形态上缺乏单一共衍征、需要用多种性状组合界定···...
    2018-04-12
    投资要点 重点推荐:光大环境,昆仑能源,三···...
    2024-10-15
    原料药板块进入到主动去库存阶段尾声,盈利能力逐步恢复。1···...
    2024-10-15
    “出海”一直是中国白酒行业的战略方向。2024年,在国内···...
    2024-10-15