MAX77816EVKIT

MAX77816 评估板


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说明

MAX77816评估板(EV kit)为完全装配并经过测试的印刷电路板(PCB),用于评估MAX77816。IC为高电流、高效升/降压调节器,适用于单节锂离子电池供电应用。器件支持2.60V至5.14V较宽输出电压范围。IC允许5A (典型值)最大开关电流。降压模式下,输出电流可高达4A;升压模式下,最大输出电流可高达3A。独特的控制算法允许高效、卓越的电源/负载瞬态响应,以及在降压和升压模式之间平稳切换。

IC具有I2C兼容串行接口。I2C接口允许动态调节输出电压,从而支持精细控制系统功耗。I2C接口还支持使能控制和器件状态监测等特性。

多功能GPIO引脚可通过寄存器设置为5种不同的选项,例如FPWM模式使能和电感峰值电流限值选择。这些选项提供设计灵活性,允许IC覆盖较宽的应用范围和应用场景。

Maxim命令模块(MINIQUSB)可用于使能Windows®兼容PC和评估板之间的USB至I2C通信。评估软件提供基于Windows的图形用户界面(GUI),用于熟悉IC的各种特性。

MAX77816EVKIT Photo MAX77816EVKIT Photo 放大+

关键特性

  • 升压和降压操作,包括升压和降压模式之间平稳切换。
    • 2.3V至5.5V VIN范围
    • 2.60V至5.14V VOUT范围,步长为20mV
    • 3A最小连续输出电流(VINBB ≥ 3.0V,VOUTBB = 3.3V)
    • 突发电流:3.6A最小输出电流,达800µs (VINBB ≥ 3.0V,VOUTBB = 3.3V)
  • I2C串行接口允许动态调节VOUT,提高设计灵活性
  • 97.5%峰值效率
  • 40μA静态电流
  • 安全特性增强器件和系统可靠性
    • 软启动
    • 真关断(True Shutdown™)
    • 热关断和短路保护
  • 多功能GPIO引脚
    • MAX77816A:FPWM模式使能
    • MAX77816B:电感峰值电流限值选择
    • MAX77816C:输出电压选择
    • MAX77816D:电源就绪指示
    • MAX77816E:中断指示
  • 小尺寸:1.827mm x 2.127mm、20焊球WLP封装、0.4mm焊球间距

应用

  • 数码相机:电源
  • 电子烟:雾化器供电
  • 煤气表/水表:数据集中器供电
  • 美肤产品:高功率LED供电
  • 智能手机:相机子系统、传感器、RGB LED、SDIO、指纹扫描器等供电
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。

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