MAX8688

带有PMBus接口的数字电源控制器/监测器

可完备控制/监控任何电源,带有PMBus接口


点击查看特定型号的库存状况。

说明

MAX8688是完全集成的数字电源控制和监控IC,可与任何现有的POL (负载点)电源一起工作,提供完整的数字编程。MAX8688可与基准输入、反馈节点以及输入使能连接,控制POL提供跟踪、排序、裕量调节以及动态控制输出电压等功能。

MAX8688具有一路高精度的12位模/数转换器(ADC)和两个差分放大器,用于精确监测电压和电流。内部集成12位数/模转换器(DAC)用于电源裕量调节,并可在全温范围内以0.2%的精度通过闭环系统动态调节输出电压。内部温度传感器提供附加的系统监测。

用户可编程寄存器提供灵活、精确的事件控制,例如:延迟时间和过渡时间、监测过压、欠压、过流、反向电流、过热故障,并可相应地处理报警。可编程闭环工作状态,确保MAX8688与任何现有的POL协同工作,提供精确控制和裕量调节。

MAX8688工作在PMBus™兼容通信协议。可以按照该协议或从Maxim网站下载(GUI)对器件进行编程,可大大加快开发进程。完成配置后,结果可以在上电时通过PMBus总线保存到EEPROM或装载到器件内。因此,可以利用MAX8688远程配置任何POL,省去了昂贵的调用或现场服务器。借助这一精确的电流测量和高分辨率电压控制解决方案,能够实现模块分流。MAX8688具有127个不同的地址设置,支持大规模系统的协调工作。MAX8688采用节省空间的24引脚、4mm x 4mm、无铅TQFN封装。
MAX8688:典型工作电路 MAX8688:典型工作电路 放大+

关键特性

  • PMBus接口用于编程、监控、上下排序以及精确的输出电压控制
  • 能够以0.2%的精度控制输出电压,在输入、负载和温度变化是保持输出稳定
  • 采用可调节的监控频率监测输出电压、输出电流和温度
  • 可以选择以2.6%精度测量电流或温度补偿
  • 可编程软启动和软停止斜率
  • 能够通过地址引脚硬件设置控制最多26路电源电压,也可以通过软件设置地址控制最多127个POL
  • 可以连接POL电源的REFIN和FB端
  • 能够在过压、欠压、过流、电流反向以及过热故障下有效保护POL,可以选择空操作、闭锁和重试(打嗝)
  • 漏极开路/FLT用于故障报警
  • 主从时钟选项可以省去外部时钟,并提供精确定时参考
  • 外部EEPROM接口用于上电时自动设置

应用

  • DC-DC模块和POL
  • 高可靠性的基础架构设备
  • 服务器
  • 电信网络

MAX8654EVKIT: MAX8654和MAX8688评估板
MAX8655EVKIT: MAX8655和MAX8688评估板

CAD Symbols and Footprints

  • MAX8688AHETG+
  • MAX8688AHETG+T
  • MAX8688ALETG+
  • MAX8688ALETG+T
  • MAX8688ALETG/GH9
  • MAX8688ALETG/GH9-T
  • MAX8688BHETG+
  • MAX8688BHETG+T
  • MAX8688BLETG+
  • MAX8688BLETG+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:
    Package:
    Temperature:

    相关资料


    MAX17630
    4.5V to 36V, 1A, High-Efficiency, Synchronous Step-Down DC-DC Converter

    • Reduces External Components and Total Cost
    • Reduces Number of DC-DC Regulators to Stock
    • Reduces Power Dissipation

    MAX20011
    Automotive Single 8A/12A Step-Down Converter with High Efficiency

    • High-Efficiency DC-DC Converter
    • Up to 12A peak output current:
    • Differential Remote Voltage Sensing

    MAX77654
    Ultra-Low Power PMIC Featuring Single-Inductor, 3-Output Buck-Boost, 2-LDOs, Power-Path Charger for Small Li+, and Ship Mode

    • Highly Integrated
    • Low Power
    • Charger Optimized for Small Battery Size

    MAX16136
    High-Precision Supervisory with Window Watchdog and Overvoltage Indicator

    • ±1% Accuracy
    • Enables ASIL Compliance at System Level
    • 0.5V to 5V Threshold Range with 20mV Increments

    MAX16160
    High-Accuracy 4-Channel, Any-Input Supervisory Circuits

    • Valid Active-Low RESET Logic State for Any Input Above 1V
    • ±1% Accuracy for All Inputs
    • Low 17μA Supply Current

    MAX15158Z
    High-Voltage Multiphase Boost Controller

    • Wide Operating Range
    • Integration Reduces Design Footprint
    • Robust Fault Protection Improves Quality and Reliability

    MAX20079
    Automotive 36V 3.5A Buck Converter with 3.5μA IQ

    • Synchronous DC-DC Converter with Integrated FETs
    • Small Solution Size Saves Space
    • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing

    MAX20026, MAX20026S
    Automotive Quad, Low-Voltage Step-Down DC-DC Converters with Low-Noise LDO

    • High-Integration Shrinks Solution Size
    • Performance Designed for Automotive Point-of-Load Regulation
    • Low-Noise Features Improve EMI Performance

    MAX20026S
    Automotive Quad, Low-Voltage Step-Down DC-DC Converters with Low-Noise LDO

    • High-Integration Shrinks Solution Size
    • Performance Designed for Automotive Point-of-Load Regulation
    • Low-Noise Features Improve EMI Performance

    MAX20801
    MPP Tracking DC-DC Converter

    • Performs MPPT on 20-24 Series Connected PV Cells
    • Fast MPPT Reacts Quickly to Changing Conditions
    • Integrated Voltage-Limiting Clamps Output Voltage

    MAX20800
    MPP Tracking DC-DC Converter

    • Performs MPPT on 20-24 Series Connected PV Cells
    • Fast MPPT Reacts Quickly to Changing Conditions
    • Integrated Voltage-Limiting Clamps Output Voltage

    MAX5992A
    Multisource, High-Power, High-Performance Powered Device Controllers

    • IEEE 802.3af/at Compliant
    • UPoE Compatible
    • High-Power 2x2P/Multi-PD Synchronization/Multi-PD Redundancy

    MAX5992B
    Multisource, High-Power, High-Performance Powered Device Controllers

    • IEEE 802.3af/at Compliant
    • UPoE Compatible
    • High-Power 2x2P/Multi-PD Synchronization/Multi-PD Redundancy

    MAX20059
    72V, 1A, Automotive Synchronous Step-Down DC-DC Converter

    • Synchronous DC-DC Converters with Integrated FETs
    • Flexibility
    • Active-Low RESET Output and EN Input (26V max) Simplify Power Sequencing

    MAX20058
    60V, 1A, Automotive Synchronous Step-Down DC-DC Converter

    • Synchronous DC-DC Converters with Integrated FETs
    • Flexibility
    • Active-Low RESET Output and EN Input (26V max) Simplify Power Sequencing

    MAXM15067
    4.5V to 60V, 300mA Step-Down uSLIC Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM15065
    4.5V to 60V, 300mA Step-Down uSLIC Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM15066
    4.5V to 60V, 300mA Step-Down uSLIC Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17904
    4.5V to 24V, 300mA Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17905
    4.5V to 24V, 300mA Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17906
    4.5V to 24V, 300mA Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAX25600
    同步、高压、4开关、升/降压LED控制器

    • 支持汽车应用:AEC-Q100认证
    • 高度集成最大程度降低BOM,用于高亮度LED驱动器,节省空间、降低成本
    • 较宽调光比支持高对比度

    MAX20048
    Automotive 40V, 55µA IQ, 2.2MHz, H-Bridge Buck-Boost Controller

    • Meets Stringent Automotive Quality and Reliability Requirements
    • Efficient Solution in a Small Solutions Size
    • Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements

    MAX20010C
    Automotive Single 6A Step-Down Converters

    • Fully Integrated, Synchronous 6A DC-DC Converter Enables Small Solution Size
    • High-Precision Voltage Regulator for Applications Processors
    • Low-Noise Feature Reduces EMI

    MAX20010D
    Automotive Single 6A Step-Down Converters

    • Fully Integrated, Synchronous 6A DC-DC Converter Enables Small Solution Size
    • High-Precision Voltage Regulator for Applications Processors
    • Low-Noise Feature Reduces EMI

    MAX17301
    单节电池ModelGauge m5 EZ电量计,集成保护器和SHA-256安全认证

    • 电池健康 + 可编程安全/保护
    • 非易失存储器,用于独立操作
    • 低静态电流

    MAX17302
    单节电池ModelGauge m5 EZ电量计,集成保护器和SHA-256安全认证

    • 电池健康 + 可编程安全/保护
    • 非易失存储器,用于独立操作
    • 低静态电流

    MAX17312
    单节电池ModelGauge m5 EZ电量计,集成保护器和SHA-256安全认证

    • 电池健康 + 可编程安全/保护
    • 非易失存储器,用于独立操作
    • 低静态电流

    MAX17311
    单节电池ModelGauge m5 EZ电量计,集成保护器和SHA-256安全认证

    • 电池健康 + 可编程安全/保护
    • 非易失存储器,用于独立操作
    • 低静态电流

    MAX17303
    单节电池ModelGauge m5 EZ电量计,集成保护器和SHA-256安全认证

    • 电池健康 + 可编程安全/保护
    • 非易失存储器,用于独立操作
    • 低静态电流

    MAX17313
    单节电池ModelGauge m5 EZ电量计,集成保护器和SHA-256安全认证

    • 电池健康 + 可编程安全/保护
    • 非易失存储器,用于独立操作
    • 低静态电流

    MAX20039
    Automotive, 2V to 36V, 2.2MHz, 0.6A/1.2A Buck-Boost Converters with Integrated H-Bridge Architecture

    • Meets Stringent Automotive Quality and Reliability Requirements
    • Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements (B and D version only)
    • High Switching Frequency Allows Use of Small External Components

    MAX20040
    Automotive, 2V to 36V, 2.2MHz, 0.6A/1.2A Buck-Boost Converters with Integrated H-Bridge Architecture

    • Meets Stringent Automotive Quality and Reliability Requirements
    • Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements (B and D version only)
    • High Switching Frequency Allows Use of Small External Components

    MAX20029B
    Automotive Quad/Triple/Quad Low-Voltage Step-Down DC-DC Converters

    • Quad Step-Down DC-DC Converters with Integrated FETs
    • Operate from 3.0V to 5.5V Supply Voltage
    • 1.0V to 4.0V Fixed or Adjustable Output Voltage

    MAX20029C
    Automotive Quad/Triple/Quad Low-Voltage Step-Down DC-DC Converters

    • Quad Step-Down DC-DC Converters with Integrated FETs
    • Operate from 3.0V to 5.5V Supply Voltage
    • 1.0V to 4.0V Fixed or Adjustable Output Voltage

    MAX20029, MAX20029B, MAX20029C
    Automotive Quad/Triple/Quad Low-Voltage Step-Down DC-DC Converters

    • Quad Step-Down DC-DC Converters with Integrated FETs
    • Operate from 3.0V to 5.5V Supply Voltage
    • 1.0V to 4.0V Fixed or Adjustable Output Voltage

    MAX77827
    5.5V Input, 1.8A/3.1A Switch Buck-Boost Converter with 6μA IQ

    • 1.8V to 5.5V Input Voltage Range
    • 2.3V to 5.3V Single Resistor Adjustable Output Voltage
    • 1.6A Maximum Output Current (3.1A ILIM Option, Buck Mode)

    MAX17823H
    12-Channel, High-Voltage Data-Acquisition Systems

    • AEC-Q100 Grade 2 Temperature Range
    • Operating Voltage from 9V to 65V
    • Ultra-Low Power Operation

    MAX25615
    7A Sink, 3A Source, 12ns, SOT23 MOSFET Drivers

    • Automotive Ready: AEC-Q100 Qualified
    • Independent Source and Sink Outputs
    • +4V to +15.5V Single Power-Supply Range

    MAX20334
    OverVoltage and Surge-Protected Dual SPDT Data Line Switch

    • Distortion-Free, High-Speed Signaling
    • Flexible System Design
    • Robust and Safety

    MAX25615EVKIT
    Evaluation Kit for the MAX25615

    • +4V to +16V Single Power-Supply Range
    • 7A Peak Sink Current
    • 3A Peak Source Current

    MAX25611C
    汽车应用高电压、HB-LED控制器

    • 支持汽车应用:AEC-Q100认证
    • 高度集成最大程度降低BOM,用于高亮度LED驱动器
    • 灵活的应用配置

    MAX25611A
    汽车应用高电压、HB-LED控制器

    • 支持汽车应用:AEC-Q100认证
    • 高度集成最大程度降低BOM,用于高亮度LED驱动器
    • 灵活的应用配置

    MAX25611B
    汽车应用高电压、HB-LED控制器

    • 支持汽车应用:AEC-Q100认证
    • 高度集成最大程度降低BOM,用于高亮度LED驱动器
    • 灵活的应用配置

    MAX25611D
    汽车应用高电压、HB-LED控制器

    • 支持汽车应用:AEC-Q100认证
    • 高度集成最大程度降低BOM,用于高亮度LED驱动器
    • 灵活的应用配置

    MAX25610A
    同步、降压和升/降压LED驱动器/DC-DC转换器

    • 支持汽车应用:AEC-Q100认证
    • 高度集成最大程度减少BOM,节省空间和成本
    • 较宽调光比支持高对比度

    MAX25610B
    同步、降压和升/降压LED驱动器/DC-DC转换器

    • 支持汽车应用:AEC-Q100认证
    • 高度集成最大程度减少BOM,节省空间和成本
    • 较宽调光比支持高对比度

    MAX16152
    nanoPower Supervisor and Watchdog Timer

    • 400nA (typ) Supply Current
    • 1.2V to 5.5V Operating Supply Range
    • Monitors Supply Voltage and Provides System Reset Signal

    MAX16153
    nanoPower Supervisor and Watchdog Timer

    • 400nA (typ) Supply Current
    • 1.2V to 5.5V Operating Supply Range
    • Monitors Supply Voltage and Provides System Reset Signal

    MAX16154
    nanoPower Supervisor and Watchdog Timer

    • 400nA (typ) Supply Current
    • 1.2V to 5.5V Operating Supply Range
    • Monitors Supply Voltage and Provides System Reset Signal

    MAX16155
    nanoPower Supervisor and Watchdog Timer

    • 400nA (typ) Supply Current
    • 1.2V to 5.5V Operating Supply Range
    • Monitors Supply Voltage and Provides System Reset Signal

    MAX17613A
    4.5V to 60V, 3A Current-Limiter with OV, UV, and Reverse Protection

    • Robust Protection Reduces System Downtime
    • Flexible Design Options Enable Reuse and Less Requalification
    • Saves Board Space and Reduces External BOM Count

    MAX17613B
    4.5V to 60V, 3A Current-Limiter with OV, UV, and Reverse Protection

    • Robust Protection Reduces System Downtime
    • Flexible Design Options Enable Reuse and Less Requalification
    • Saves Board Space and Reduces External BOM Count

    MAX17613C
    4.5V to 60V, 3A Current-Limiter with OV, UV, and Reverse Protection

    • Robust Protection Reduces System Downtime
    • Flexible Design Options Enable Reuse and Less Requalification
    • Saves Board Space and Reduces External BOM Count

    MAX21610
    Automotive 16-Channel 100mA Local Dimming Backlight Driver with SPI Interface

    • High Integration
    • Robust and Low EMI
    • Relative Dimming Ratio Between Strings Up to 32768:1

    MAX17687
    4.5V to 60V Input, Ultra-Small, High-Efficiency, Iso-Buck DC-DC Converter

    • Eliminates External Components and Reduces Total Cost
    • Supports Numerous Isolated DC-DC Applications
    • Reduces Power Dissipation

    MAX17686
    4.5V至60V输入、高效、Iso-Buck DC-DC转换器

    • 减少外部元件,降低总体成本
    • 支持多种隔离DC-DC应用
    • 降低功耗

    MAX20480
    汽车应用ASIL-D 7通道电源系统检测器

    • 小方案尺寸
    • 高精度
    • 高度集成

    MAXM15465
    4.5V to 42V, 300mA Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM15466
    4.5V to 42V, 300mA Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM15467
    4.5V to 42V, 300mA Himalaya uSLIC Step-Down Power Module

    • Easy to Use
    • High Efficiency
    • Flexible Design

    MAXM17623
    2.9V至5.5V、1A、喜马拉雅uSLIC降压型电源模块

    • 容易使用
    • 高效
    • 灵活的设计

    MAXM17624
    2.9V至5.5V、1A、喜马拉雅uSLIC降压型电源模块

    • 容易使用
    • 高效
    • 灵活的设计

    MAX17853
    14通道、高压数据采集系统

    • 65V工作电压
    • 超低功耗
    • 冗余ADC和比较器(COMP)采集

    类型 编号 PDF 标题
    设计指南 5133 Power-Supply Solutions for Altera FPGAs
    设计指南 5132 Power-Supply Solutions for Xilinx FPGAs