[原创] Linear LTC2975四路PMBus电源系统管理方案

Linear公司的LTC2975是四路PMBus电源系统管理器,具有精确的输入电流和能量测量,用来确序,调整(伺服),留余量,监测,管理故障,和提供遥测和创建故障记录.I2C/SMBus串口, 3.3V或4.5V-15V供电,主要用在计算机和网络服务器,工业测试和测量,高可靠系统,视频和医疗图像.本文介绍了LTC2975主要特性,框图和应用电路,以及评估系统DC2022A 主要特性, 简化框图,电路图和材料清单,PCB元件布局图.

The LTC®2975 is a 4-channel Power System Manager used to sequence, trim (servo), margin, supervise, manage faults, provide telemetry and create fault logs. PMBus commands support power supply sequencing, precision point-of-load voltage adjustment and margining. DACs use a proprietary soft-connect algorithm to minimize supply disturbances. Supervisory functions include over and under current, voltage and temperature threshold limits for four power supply output channels as well as over and under voltage threshold limits for a single power supply input channel. Programmable fault responses can disable the power supplies with optional retry after a fault is detected.
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