[原创]Maxim MAX16550SMBus／PMBus特性保护IC解决方案

Maxim公司的MAX16550是具有SMBus/PMBus™控制和报告的12V总线保护集成电路,集成了MOSFET,无损耗电流检测和PMBus接口.器件为系统的12V电源提供了关于失真,控制,监视和保护的最佳解决方案.同时内部的LDO还提供了保护IC的电源.MAX16550的保护电流30A,30A的高密度尺寸为4mmx4.5mm,比通常解决方案板面积要小25%,具有电源,控制和监视单片集成.集成的功率MOSFET在12V电源通路中的RDS(ON)为1.9mΩ.器件具有可编程软起动和延迟,可编输入欠压锁住阈值(UVLO),可编程的电源良好阈值,以及用于输出UVLO/输入UVLO报告的PWRGD引脚,而用于故障报告的FAULT引脚.主要用在服务器,网络,存储,通信设备和AC/DC电源.本文介绍了MAX16550主要优势和特性和其它特性,框图,基本应用电路,参考电路图以及评估板MAX16550 EVK主要特性,系统配置,电路图,材料清单和PCB设计图.

The MAX16550 is a protection IC with anintegrated low-resistance MOSFET and lossless currentsensecircuitry featuring SMBus/PMBus™ control andreporting. This IC is designed to provide the optimum solutionfor distribution, control, monitoring and protection of thesystems 12V power supply. An internal LDO provides thesupply voltage for the protection IC.

If no fault is detected, the IC initiates the startup and hasbeen designed to provide controlled, monotonic startup.Programmable soft-start ramp and delay is implementedto limit the in-rush current during startup.

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