MIC2580A数据手册集成电路（IC）的热插拔控制器规格书PDF

描述 Description

The MIC2580 is a hot-swap controller that provides for safe and orderly insertion and removal of PCI based adapter cards from a PCI hot-plug compliant system backplane or CompactPCI™ system.The MIC2580 incorporates a circuit breaker function that protects all four supplies (+12V, +5V, +3.3V, and -12V) upon an overcurrent fault condition. Current foldback limiting prevents large transient currents caused by plugging adapter cards into live backplanes, such as in a CompactPCI system.A programmable slew-rate control limits high inrush currents to all loads that occur when power is applied to large capacitive loads.Voltage supervisory functions for all four power supplies are provided by “power good” (/PWRGD) and “overcurrent fault” (/FAULT) diagnostic outputs. Power good and overcurrent fault include deglitch filters to prevent nuisance tripping.Power good is active when all four supplies are within tolerance. Fault (/FAULT) goes active upon overcurrent or overtemperature conditions. The on-off control input (/ON) is used to cycle power to the adapter card.

特性 Features

• PCI hot-plug and CompactPCI™ hot-swap support
• +12V, +5V, +3.3V, and -12V power supply control
• Circuit breaker function to protect system
• Programmable slew rate control for all supplies
• Foldback current-limiting
• +5V and +3.3V programmable current-limit thresholds
• Undervoltage and overcurrent diagnostic outputs
• Deglitch filters on diagnostic fault outputs
• Integrated +12V and -12V MOSFET switches
• Integrated high-side drivers for 3.3V and 5V external switches
• Precharge supply for CompatPCI™ I/O termination

简介

MIC2580A属于集成电路（IC）的热插拔控制器。由制造生产的MIC2580A热插拔控制器PMIC - 热插拔控制器是能提供电路内保护和控制功能的半导体，可允许带电情况下在电路中插入或拔除其他组件。热插拔控制器可用于计算机网络和通用电源系统，主要根据输出电流、受控通道数量等特性，以及自动重试、故障超时和保护等特殊功能进行区分。