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MOSFET驱动器IC一般采用桥式配置,用于驱动外部MOSFET,广泛用于电源和电机驱动应用。MOSFET驱动器满足电桥的定时要求,保证同一时刻只有一个MOSFET导通。

“或”操作MOSFET控制器驱动大功率MOSFET,代替“或”配置二极管,适用于高可靠性、冗余、并行控制电源。与“或”配置肖特基二极管相比,MOSFET具有极低的导通电阻,所以功耗较低、尺寸更小,在大功率应用中无需散热器。“或”逻辑配置MOSFET控制器提供驱动电源MOSFET必须的控制逻辑。

MOSFET驱动器可广泛用于从电机驱动器和负载开关到开关电源的各种应用。单路和双路驱动器,再加上副边同步驱动器,可有效提高隔离设计的效率。提供评估板,用于快速创建原型和设计验证。业界领先的特性包括:

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器件号 标题 文件类型 Date

An Ideal Diode Can Be an Engineer’s Best Friend

November 01, 2018

Guest blogger Jim Harrison takes a look at key applications for ideal diodes and explores how they can benefit various designs.

特色产品

MAX15492 单相同步MOSFET驱动器,具有超低功耗待机

MAX15492是一款同步半桥驱动器,具有超低功耗模式。该器件与控制器IC如MAX15411、MAX15566/MAX15567或MAX15576/MAX15577一起工作,用于多相CPU核稳...
  • 超低功耗模式,4µA电源电流
  • 低边导通电阻:0.7Ω
  • 高边导通电阻:1.5Ω
  • 传输延迟:12ns
  • 最小保证死区时间:7ns
  • 集成升压开关
  • 2V至24V 输入电压范围
  • 4.2V至5.5V偏置电压范围
  • 可选择跳脉冲模式
  • 小型、2mm × 2mm TDFN封装
MAX14914EVKIT Evaluation Kit for the <a href="/en/products/MAX14914">MAX14914</a>/<a href="/en/products/MAX14914A">MAX14914A</a>/<a href="/en/products/MAX14914B">MAX14914B</a>

MAX14914EVKIT Evaluation Kit for the MAX14914/MAX14914A/MAX14914B

The MAX14914 evaluation kit (EV kit) provides a proven design to evaluate the MAX14914/MAX14914A...
MAX14914A High-Side Switch with Settable Current-Limiting, Push-Pull Driver Option, and Digital Input Configuration

MAX14914A High-Side Switch with Settable Current-Limiting, Push-Pull Driver Option, and Digital Input Configuration

The MAX14914 is a high-side/push-pull driver that operates as both an industrial digital output ...
  • Reduces Power and Heat Dissipation
    • 240mΩ (max) HS RON at TA = 125°C
    • Accurate Short-Circuit Current Limit
    • Accurate Internal Current Limiter for Types 1, Type 2, and Type 3 Digital Inputs
  • Enhances System Robustness
    • “Safe-Demagnetization” for Safe Turn-Off of Unlimited Inductance
    • 60V Supply Tolerance
    • Loss of GND Protection
    • Thermal Shutdown Protection
    • ±2kV IEC 61000-4-5 Surge Protection
    • ±20kV IEC 61000-4-2 Air-Gap ESD Protection
    • ±7kV IEC 61000-4-2 Contact ESD Protection
    • -40°C to +125°C Ambient Operating Temperature
  • Reduces BOM Count and PCB Space
    • Small 4x4 TQFN Package
    • Internal Clamps for Fast Inductive Load Turn-Off
    • On-Chip 5V Regulator
  • Provides Flexibility
    • Configurable as a Digital Input or a High-Side or Push-Pull Digital Output
    • Resistor Settable Current Limiting for the High-Side Switch (135mA - 1.3A)
    • 10V to 40V Operating Supply Range
  • Improves System Speed and Throughput
    • Propagation Delay of Less Than 2µSec
MAX14914B High-Side Switch with Settable Current-Limiting, Push-Pull Driver Option, and Digital Input Configuration

MAX14914B High-Side Switch with Settable Current-Limiting, Push-Pull Driver Option, and Digital Input Configuration

The MAX14914 is a high-side/push-pull driver that operates as both an industrial digital output ...
  • Reduces Power and Heat Dissipation
    • 240mΩ (max) HS RON at TA = 125°C
    • Accurate Short-Circuit Current Limit
    • Accurate Internal Current Limiter for Types 1, Type 2, and Type 3 Digital Inputs
  • Enhances System Robustness
    • “Safe-Demagnetization” for Safe Turn-Off of Unlimited Inductance
    • 60V Supply Tolerance
    • Loss of GND Protection
    • Thermal Shutdown Protection
    • ±2kV IEC 61000-4-5 Surge Protection
    • ±20kV IEC 61000-4-2 Air-Gap ESD Protection
    • ±7kV IEC 61000-4-2 Contact ESD Protection
    • -40°C to +125°C Ambient Operating Temperature
  • Reduces BOM Count and PCB Space
    • Small 4x4 TQFN Package
    • Internal Clamps for Fast Inductive Load Turn-Off
    • On-Chip 5V Regulator
  • Provides Flexibility
    • Configurable as a Digital Input or a High-Side or Push-Pull Digital Output
    • Resistor Settable Current Limiting for the High-Side Switch (135mA - 1.3A)
    • 10V to 40V Operating Supply Range
  • Improves System Speed and Throughput
    • Propagation Delay of Less Than 2µSec
MAX14914 High-Side Switch with Settable Current-Limiting, Push-Pull Driver Option, and Digital Input Configuration

MAX14914 High-Side Switch with Settable Current-Limiting, Push-Pull Driver Option, and Digital Input Configuration

The MAX14914 is a high-side/push-pull driver that operates as both an industrial digital output ...
  • Reduces Power and Heat Dissipation
    • 240mΩ (max) HS RON at TA = 125°C
    • Accurate Short-Circuit Current Limit
    • Accurate Internal Current Limiter for Types 1, Type 2, and Type 3 Digital Inputs
  • Enhances System Robustness
    • “Safe-Demagnetization” for Safe Turn-Off of Unlimited Inductance
    • 60V Supply Tolerance
    • Loss of GND Protection
    • Thermal Shutdown Protection
    • ±2kV IEC 61000-4-5 Surge Protection
    • ±20kV IEC 61000-4-2 Air-Gap ESD Protection
    • ±7kV IEC 61000-4-2 Contact ESD Protection
    • -40°C to +125°C Ambient Operating Temperature
  • Reduces BOM Count and PCB Space
    • Small 4x4 TQFN Package
    • Internal Clamps for Fast Inductive Load Turn-Off
    • On-Chip 5V Regulator
  • Provides Flexibility
    • Configurable as a Digital Input or a High-Side or Push-Pull Digital Output
    • Resistor Settable Current Limiting for the High-Side Switch (135mA - 1.3A)
    • 10V to 40V Operating Supply Range
  • Improves System Speed and Throughput
    • Propagation Delay of Less Than 2µSec

MAX14922EVKIT Evaluation Kit for the MAX14922

The MAX14922 evaluation kit (EV kit) provides a proven design to evaluate the MAX14922 industria...

MAX14922 High-Side Switch Controller with Current Limiting

The MAX14922 is a high-side, n-channel FET controller for implementing industrial high-side swit...

MAX5079EVKIT MAX5079评估板

MAX5079评估板(EV kit)用于演示并联电源系统中MAX5079 “或” MOSFET控制器的功能。该评估板采用“或” MOSFET并联连接两个电源,可模拟故障状态,并演示故障状态下电...
  • 为3V至13.2V电源总线提供N+1冗余系统电源功能(重新配置电路可工作于1V电压)
  • 消除了“或”二极管功耗
  • 可调的反向电压检测门限
  • 可调的欠压门限(配置为3.0V)
  • 可调的过压门限(配置为13.2V)
  • OVP_ 和PGOOD_状态指示
  • 支持高达20A的负载电流
  • 模拟输入端的严重故障状态
  • 完全装配且经过测试
MAX14917 Industrial Octal High-Side Switch

MAX14917 Industrial Octal High-Side Switch

The MAX14917 has eight high-side switches specified to deliver up to 700mA (min) continuous curr...
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MAX17600

快速切换时间、短传输延迟,高频电路的理想选择。
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MAX17606

4.5V至36V输入、高电流驱动器提高效率和热管理性能。
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MAX5048C

支持逻辑输入信号,驱动较大外部MOSFET,高频开关的理想选择。

参考设计

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MAXREFDES120

小尺寸24V输入模块,带有副边同步MOSFET驱动器,输出为5V @ 2.5A。
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MAXREFDES119

小尺寸24V输入模块,带有副边同步MOSFET驱动器,输出为5V @ 1.8A。