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利用单芯片方案保护系统电源,防止故障

系统电源保护IC通过缓解工业、医疗、电动汽车及其他环境下常见的反向电压、热插拔、过压、过流及过热故障条件的有害影响,防止现场故障和意外停工。

Maxim的完备系统故障IC集成反向配置MOSFET,实现可靠保护,响应时间仅为纳秒级。Maxim的可靠、小尺寸方案具有:

  • 浪涌电流限值
  • 电子熔丝/过载限值
  • 反向电压保护
  • 功率抑制
  • 热受控折返式限流
  • 电流监测

Power Protection Fundamentals
27:22 April 22, 2019


How to Add Overvoltage and Overcurrent Protection Using the MAX17561—Part I
5:15 September 17, 2018


How to Add Overvoltage and Overcurrent Protection Using the MAX17561—Part II
5:35 September 18, 2018

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器件号 标题 文件类型 日期

特色产品

MAX17523AEVKIT Evaluation Kit for the MAX17523A

The MAX17523A evaluation kit (EV kit) is a fully assembled and tested circuit board that demonst...

MAX16173EVKIT Evaluation Kit for the MAX16173

The MAX1673 evaluation kit (EV kit) is designed to evaluate the MAX16173, an automotive protecti...

MAX16173 Ideal Diode Controller with Active Rectifier

The MAX16173 is an ideal diode controller that provides system protection against input transien...

MAX16971 3A Automotive Hi-Speed USB Protectors with Apple iPhone/iPad and USB 2.0 Charge Detection

The MAX16970/MAX16971 provide high-ESD and short-circuit protection for the low-voltage internal...
可打印的数据手册

MAX14741EVKIT Evaluation Kit for the MAX14740/MAX14741/MAX14742/MAX20320

The MAX14741/MAX14742 evaluation kit (EV kit) is a fully assembled and tested circuit board that...

MAX14741 小尺寸的6A智能电源路径选择器

MAX14740—MAX14742小尺寸6A智能电源路径选择器带有复位控制,具有11mΩ (典型值)低RON内部FET,由两个独立电源提供系统电源。器件具有复位和断开功能,为MR1、MR2和T...
  • 提供可靠的双向电源路径
    • 较宽工作输入电压范围:+1.6V至+5.5V
    • 6A连续输出电流能力
    • 两个集成11mΩ (典型值) MOSFET开关
  • 灵活的系统设计,具有电池连接、复位和断开功能
    • I2C控制:MAX14740
    • 可编程连接时间
    • 可编程复位建立时间
    • 可编程复位脉冲长度
    • 可编程断开建立时间
    • 可编程比较器滞回
    • 可编程输入自动选择
  • GPIO控制:MAX14741/MAX14742
    • 可编程比较器滞回
    • 可编程输入自动选择
  • 长电池寿命
    • 超低静态电流:7.5µA (典型值)
    • 快速切换
    • 最优软启动特性
可打印的数据手册 评估套件

MAX14742EVKIT Evaluation Kit for the MAX14740/MAX14741/MAX14742/MAX20320

The MAX14741/MAX14742 evaluation kit (EV kit) is a fully assembled and tested circuit board that...

MAX14742 小尺寸的6A智能电源路径选择器

MAX14740—MAX14742小尺寸6A智能电源路径选择器带有复位控制,具有11mΩ (典型值)低RON内部FET,由两个独立电源提供系统电源。器件具有复位和断开功能,为MR1、MR2和T...
  • 提供可靠的双向电源路径
    • 较宽工作输入电压范围:+1.6V至+5.5V
    • 6A连续输出电流能力
    • 两个集成11mΩ (典型值) MOSFET开关
  • 灵活的系统设计,具有电池连接、复位和断开功能
    • I2C控制:MAX14740
    • 可编程连接时间
    • 可编程复位建立时间
    • 可编程复位脉冲长度
    • 可编程断开建立时间
    • 可编程比较器滞回
    • 可编程输入自动选择
  • GPIO控制:MAX14741/MAX14742
    • 可编程比较器滞回
    • 可编程输入自动选择
  • 长电池寿命
    • 超低静态电流:7.5µA (典型值)
    • 快速切换
    • 最优软启动特性
可打印的数据手册 评估套件

MAX20084B Automotive Dual-Antenna Power Supply with I2C Serial Interface

The MAX20084B is a dual-antenna power supply with an I2C interface for diagnostics and control. ...

MAX20084EVSYS MAX20084 评估板

MAX20084评估板(EV kit)为完全装配并经过测试的表贴PCB,用于评估MAX20084汽车应用双通道天线电源,带有I2C接口。使用I2C接口可独立配置每通道作为开关或LDO工作,并且...
  • 4.5V至28V宽输入电压范围(40V抛负载容限)
  • 2通道LDO/开关
  • 可使用I2C调节输出电压
  • 输出电流监测
  • 模拟输出
  • I2C ADC
  • 故障指示开漏输出
  • 高压使能控制输入(EN)
  • 经过验证的PCB布局
  • 完全装配并经过测试

MAX16550B 支持12V母线的集成保护IC,具有集成MOSFET、无损电流检测和PMBus接口

MAX16550A/MAX16550B为保护IC,包含集成低电阻MOSFET和无损电流检测电路,具有SMBus/PMBus™控制和报告。IC用于为系统的12V电源配电、控制、监测和保护提供最优...
  • 三种选项:
    • MAX16550A:30A保护,8A启动
    • MAX16550B:30A保护,16A启动
  • 高密度(4mm x 4.5mm,30A):比传统方案的电路面积小25%
    • 单芯片集成电源、控制和监测
    • 集成功率MOSFET,12 V电源通路上的总电阻为1.9mΩ (RDS(ON),包括封装)
    • 集成无损、高精度电流检测
    • 集成LDO提供VDD电源(1.8V偏置电源)
  • 支持高级系统电源管理 — PMBus/SMBus遥控,具有全面的状态监测和报告
    • 负载电流指示(ILOAD)引脚提供高精度模拟输出电流指示
    • 可编程软启动,限制浪涌电流
    • 利用IC自保护特性提高电源可靠性
      • 极快故障检测和隔离
      • 启动期间VIN至VOUT短路保护
      • 过热保护
  • 三级过流保护
    • 可编程中等OCP
    • 可编程严格OCP提供小于5µs的隔离
    • 失效保护安全OCP提供小于250ns的隔离

MAX16550A 支持12V母线的集成保护IC,具有集成MOSFET、无损电流检测和PMBus接口

MAX16550A/MAX16550B为保护IC,包含集成低电阻MOSFET和无损电流检测电路,具有SMBus/PMBus™控制和报告。IC用于为系统的12V电源配电、控制、监测和保护提供最优...
  • 三种选项:
    • MAX16550A:30A保护,8A启动
    • MAX16550B:30A保护,16A启动
  • 高密度(4mm x 4.5mm,30A):比传统方案的电路面积小25%
    • 单芯片集成电源、控制和监测
    • 集成功率MOSFET,12 V电源通路上的总电阻为1.9mΩ (RDS(ON),包括封装)
    • 集成无损、高精度电流检测
    • 集成LDO提供VDD电源(1.8V偏置电源)
  • 支持高级系统电源管理 — PMBus/SMBus遥控,具有全面的状态监测和报告
    • 负载电流指示(ILOAD)引脚提供高精度模拟输出电流指示
    • 可编程软启动,限制浪涌电流
    • 利用IC自保护特性提高电源可靠性
      • 极快故障检测和隔离
      • 启动期间VIN至VOUT短路保护
      • 过热保护
  • 三级过流保护
    • 可编程中等OCP
    • 可编程严格OCP提供小于5µs的隔离
    • 失效保护安全OCP提供小于250ns的隔离

MAX16171EVKIT Evaluation Kit for the MAX16171

The MAX16171 EV kit is designed to evaluate the MAX16171, an ideal diode controller that protect...
MAX16171 Ideal Diode Controller with Reverse-Current Protection

MAX16171 Ideal Diode Controller with Reverse-Current Protection

The MAX16171 is an ideal diode controller that protects the load against damaging automotive tra...

MAX16141AEVKIT Evaluation Kit for the MAX16141A

The MAX16141A evaluation kit (EV kit) is a complete, fully assembled, and tested ideal diode con...

MAX20333N Adjustable Current-Limit Switch with Low Power Mode

The MAX20333/A/B/C/D/E/F/G/H/I/J/K/L/M/N programmable current-limit switches feature internal cu...

MAX20333M Adjustable Current-Limit Switch with Low Power Mode

The MAX20333/A/B/C/D/E/F/G/H/I/J/K/L/M/N programmable current-limit switches feature internal cu...

MAX20333L Adjustable Current-Limit Switch with Low Power Mode

The MAX20333/A/B/C/D/E/F/G/H/I/J/K/L/M/N programmable current-limit switches feature internal cu...

MAX14743EVKIT Evaluation Kit for the MAX14743

The MAX14743 evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstr...
MAX20333 Adjustable Current-Limit Switch with Low Power Mode

MAX20333 Adjustable Current-Limit Switch with Low Power Mode

The MAX20333/A/B/C/D/E/F/G/H/I/J/K/L/M/N programmable current-limit switches feature internal cu...

系统电源保护IC选型指南

最大
限流值
VIN 型号 特性 引脚-封装/尺寸 IC 评估
套件
250mA 4.5V 至 60V MAX17612A
MAX17612B
MAX17612C
限流器,带OV、
UV和反向保护
10-TDFN-EP
3mm x 3mm
购买
购买
购买
购买
购买
购买
1A 4.5V to 36V MAX17523 限流器,带OV、UV
和反向保护
16-TQFN
3mm x 3mm
购买 购买
4.5V to 60V MAX17608
MAX17609
MAX17610
限流器,带OV、UV
和反向保护
12-TDFN-EP
3mm x 3mm
购买
购买
购买
购买
购买
购买
2A 5.5V to 60V MAX14721
MAX14722
MAX14723
限流器,带OV、UV
和反向保护
20-TQFN
5mm x 5mm
购买
购买
购买
购买
3A 4.5V to 60V MAX17613A
MAX17613B
MAX17613C
限流器,带OV、UV
和反向保护
20-TQFN-EP
4mm x 4mm
购买
购买
购买
购买
购买
购买
4.2A 4.5V to 36V MAX17561
MAX17562
MAX17563
限流器,带OV、UV
和反向保护
14-TSSOP
5mm x 6.5mm
购买
购买
购买
购买
6A 5.5V to 60V MAX17525 限流器,带OV、UV、反向
保护和功率抑制,带外部
P-FET
20-TQFN
5mm x 5mm
购买 购买
5.5V to 60V MAX17526A 限流器,带OV、UV、反向
保护和功率抑制,带外部
P-FET
20-TQFN
5mm x 5mm
购买 购买

参考设计

MAXREFDES9009: MAX98365 8-Channed Reference Design

Easy to use 8-channel digital input audio amplifier with a true plug and play usability.

MAXREFDES1238: Scalable, Single Input, 6 Output, Power Solution for the Versal ACAP Platform

In this design a single 12V input supplies a circuit which outputs 6 separate rails ranging from...

MAXREFDES1263: True Wireless Stereo Cradle and Earbuds

This solution demonstrates a small size, low power, high effective, high accuracy power manageme...

MAXREFDES1260: Li Battery Charger and Monitor System with 3A USB-C Input

The purpose of MAXREFDES1260 is to solve the problem of high-voltage fast charging of 2S battery...

MAXREFDES9002: C-source Reference for Operating the DS28E18 from Cortex-M4 GPIO Pins

Extend an I2C and SPI interface using the DS28E18 with included M4 compatible 1-Wire API and C-d...
MAXREFDES179#参考设计板

MAXREFDES179#参考设计板

The MAXREFDES179 reference design is a complete Universal Serial Bus (USB) type-C PD solution fe...

MAXREFDES1275: 1A,3-Channel LED Driver in Buck Configuration using MAX20050 and its dimming control using MAX32630FTHR

The MAX20050 is a high-brightness LED driver for automotive exterior lighting applications.

MAXREFDES1046:宽输入范围、3.3V/3A输出同步整流、降压型DC-DC转换器,两层电路板设计降低成本

The MAX17574, high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrat...

MAXREFDES1105: Miniature, 5V/2A, Synchronous, No-Opto Flyback DC-DC Converter with 90.4% Efficiency Using MAX17690 and MAX17606

Due to its simplicity and low cost, the flyback converter is the preferred choice for low-to-med...

MAXREFDES1102:小尺寸、24V/250mA、无光耦、反激DC-DC转换器,92%效率

The MAX17690 implements an innovative algorithm to accurately determine the output voltage by se...

MAXREFDES1045: Two-Layer Board, 5V/3A, Wide-Input, Synchronous, Step-Down DC-DC Converter Using the MAX17574

The MAX17574, high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrat...

MAXREFDES1037:72W Offline Flyback Converter

The MAX17595 is a peak-current-mode controller for designing wide input-voltage flyback regulato...

MAXREFDES1004:-73V至-35V输入、5V/100mA输出、Boost转换器

The MAX668/MAX669 constant-frequency, pulse-width modulating (PWM), current-mode DC-DC controlle...

MAXREFDES1088:小尺寸、12V/250mA、同步、无光耦、反激DC-DC转换器,91.9%效率

Due to its simplicity and low cost, the flyback converter is the preferred choice for low-to-med...

MAXREFDES1106: Miniature, 12V/1A, Synchronous, No-Opto Flyback DC-DC Converter with 92% Efficiency Using MAX17690 and MAX17606

Due to its simplicity and low cost, the flyback converter is the preferred choice for low-to-med...
Product Image

MAX17526AEVKIT

5.5V至60V,6A,具有过压/欠压,反向保护和功率限制。
Product Image

MAX17613AEVKIT

4.5V至60V,3A的过压,欠压保护和反向电流阻断功能。
Product Image

MAX17608EVKIT

具有反向电流阻断功能的4.5V至60V,1A,过压/欠压保护。