MAX17559

60V、双路输出、同步降压型控制器

宽输入电压范围、双路输出控制器,提高工业应用设计灵活性


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说明

MAX17559为一颗双路输出、同步降压型控制器,用于驱动nMOSFET。器件采用峰值电流控制模式、固定频率架构。

两路输出可配置作为独立电压轨。两路输出180°错相工作,最大程度减小输入电容。

IC支持检测电流时使用外部电流检测电阻提高精度,或使用电感DCR提高系统效率。短路条件下,折返式限流或闭锁限制MOSFET功耗。

IC为每路输出提供可独立调节软启动/停止,启动时单调进入预偏置输出状态。IC可配置为PWM或DCM工作模式,取决于采用固定频率工作还是希望提高轻载效率。

IC工作在-40°C至+125°C温度范围,采用无铅(Pb)、7mm x 7mm、32引脚TQFP封装。
MAX17559: Block Diagram MAX17559: Block Diagram 放大+

关键特性

  • 较宽工作范围
    • 4.5V至60V宽的输入电压范围
    • 0.8V至24V较宽输出电压范围
    • RSENSE或电感DCR电流检测
    • 固定180°错相工作
    • 100kHz至2.2MHz可调开关频率
    • 独立使能和PGOOD
    • 采用无铅(Pb)、7mm x 7mm、32引脚TQFP封装
  • 增强功效
    • 低阻抗栅极驱动器提高效率
    • 轻载条件下DCM工作
    • 辅助自举LDO
  • 在恶劣工业环境下工作可靠
    • 可独立调节软启动/停止或跟踪
    • 短路条件下,电流可选的折返式限流或闭锁限制MOSFET热耗散
    • 工作在-40°C至+125°C温度范围
    • 输出过压和过热保护

应用

  • 电脑数控
  • DC动力系统分配
  • 工业电源
  • 运动控制
  • 可编程逻辑控制器
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Output Adjust. MethodIOUT1
(A)
Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
(kHz)
Design ToolsPackage/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX17559 4.5600.824Resistor20ExternalYesYes22200EE-Sim
TQFN/32
TQFP/32
$3.20 @1k
查看所有Step-Down Switching Regulators (367)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。


MAX17559EVKIT: MAX17559评估板

质量和环境数据

产品可靠性报告: MAX17559.pdf 
无铅封装的锡(Sn)晶须报告

工具和模型

  • EE-Sim: MAX17559 设计和仿真
  • CAD Symbols and Footprints

  • MAX17559ACJ+
  • MAX17559ACJ+T
  • MAX17559ATJ+T
  • 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 >

     
    Status:
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