MAX16992

36V、2.5MHz汽车级Boost/SEPIC控制器

2.5MHz汽车应用PWM控制器,以有限的空间提供电源预升压,支持冷/热启动


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说明

MAX16990/MAX16992为高性能、电流模式PWM控制器,具有4µA (典型值)关断电流,在较宽的输入电压范围实现boost/SEPIC转换。4.5V至36V输入电压范围使得这些器件理想用于汽车电子产品,例如前端“预升压”或“SEPIC”电源、大功率LED照明的第一级升压。内部低压差稳压器(PVL调节器)输出5V,使得MAX16990/MAX16992可直接采用汽车电池作为输入。当转换器输出连接到SUP输入时,输入工作电压范围可扩展到低至2.5V。

多个器件版本,提供一种或多种下述功能:两相工作同步输出(SYNC0)、利用独立的输入引脚(OVP)实现过压保护、基准输入(REFIN)允许实时调整输出电压。

MAX16990和MAX16992采用不同的工作频率。利用FSET/SYNC输入,所有版本的器件均可同步至外部主时钟。

另外,MAX16990/MAX16992具有工厂可编程扩频选项。所有器件均采用紧凑的12引脚TQFN和10引脚µMAX®封装。

MAX16990, MAX16992: Functional Diagram MAX16990, MAX16992: Functional Diagram 放大+

关键特性

  • 工作电压低至4.5V (在自举模式下:2.5V或更低),可承受高达42V的抛负载瞬态电压
  • 开关频率范围:100kHz至1MHz (MAX16990)以及1MHz至2.5MHz (MAX16992)
  • 反馈电压精度:±1%
  • 关断电流:4µA
  • 可调整斜率补偿
  • 内部软启动(9ms)
  • 电流模式控制
  • PGOOD输出和打嗝模式,增强系统保护
  • 过热关断
  • 工作温度范围:-40°C至+125°C
  • 紧凑的12引脚TQFN (3mm × 3mm)以及10引脚µMAX封装

应用

  • 车载音频/导航系统
  • 车载LED照明
  • 仪表盘

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX16990EVKIT: 评估MAX16990和MAX16992
MAX16992EVKIT: 评估MAX16990和MAX16992

工具和模型

  • EE-Sim: MAX16992 设计和仿真
  • MAX16992 SIMPLIS Schematic
  • 申请可靠性报告: MAX16992 
    型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

    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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