MAX17116

用于AMOLED的双输出DC/DC电源

具有业内最高效率和精度,提高OLED成像质量,延长电池寿命


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说明

MAX17116包括2路电流模式、1.4MHz开关电源(SMPS)调节器,用于有源矩阵有机发光二极管(AMOLED)显示器。正电源由同步整流升压调节器提供;负电源由同步整流反相调节器提供。

升压型DC-DC转换器为高精度250mA稳压器,内置功率MOSFET开关和同步整流器。同步整流有助于提高效率,并提供真正的关断功能(True Shutdown™)。3.7V输入,输出为4.6V (固定)、150mA时,效率高达85%。内置7位数字软启动功能,控制启动浪涌电流。

反相DC-DC转换器为高精度250mA稳压器,内置功率MOSFET开关和同步整流器。3.7V输入,输出为-5.4V至-1.5V、150mA时,效率高达80%。内置7位数字软启动功能,控制启动浪涌电流。内部设置输出电压,采用特定的通信协议通过EN引脚进行调节。

IC采用12引脚、3mm x 3mm x 0.5mm、带有裸焊盘的超薄型DFN封装(0.5mm焊距便于超薄型电路板设计)和24引脚、4mm x 4mm、带有裸焊盘的薄型QFN封装。
MAX17116: 典型工作电路 MAX17116: 典型工作电路 放大+

关键特性

  • 2.3V至4.2V输入电压范围
  • 高性能PWM升压调节器
    • 固定4.6V、250mA输出
    • 高精度(±1.0%)
    • 1.4MHz开关频率
    • 内置6V/0.25Ω n沟道MOSFET,提供无损电流检测功能
    • 内置6V/0.5Ω p沟道MOSFET同步整流器
    • 逐周期限流
    • 150mA下,效率高达85%
    • 良好的低占空比工作
  • 高性能PWM反相调节器
    • 可编程250mA输出
    • 高精度(±1%)
    • 可调节控制输出电压摆率
    • 1.4MHz开关频率
    • 内置14V/25Ω p沟道MOSFET,提供无损电流检测功能
    • 内置14V/25Ω n沟道MOSFET同步整流器
    • 逐周期限流
    • 150mA下,效率高达80%
  • 两路输出均具有真关断
  • 定时器延迟输出,控制两路输出的欠压关断
  • 热过载保护
  • 12引脚、3mm x 3mm、超薄型DFN封装和24引脚、4mmx4mm、TQFN封装

应用

  • 汽车导航
  • OLED显示器
  • 电话,DSC显示器

质量和环境数据

申请可靠性报告: MAX17116 
无铅封装的锡(Sn)晶须报告
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

质量管理体系 >
环境管理体系 >

 
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相关资料


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