DC2028A

DC2028A demonstration system showcases the LTC®2977, an 8-channel I2C/SMBus/PMBus power system manager with EEPROM. The LTC2977 monitors and controls eight power supply rails. The DC2028A demonstrates the ability of the LTC2977 to sequence, trim, margin, supervise, monitor, and log faults for eight power supplies. Each power supply channel’s output voltage is monitored and the LTC2977 monitors its own internal die temperature. The DC2028A is a single circuit board that contains eight independent power supply rails. The board employs eight LTC3405A 300mA switch mode regulators, which are configured to be controlled by the LTC2977. The DC2028A demo board provides a sophisticated 8-channel digitally programmable power supply system. This demonstration system is supported by the LTpowerPlay™ graphical user interface (GUI) which enables complete control of all the features of the device.

• Sequence, trim, margin, and supervise eight power supplies
• Manage faults, monitor telemetry and create fault logs
• PMBus compliant command set
• Supported by LTpowerPlay GUI
• Margin or trim supplies to 0.25% accuracy
• Fast OV/UV supervisors per channel
• Supports multichannel fault management and automatic fault logging to internal EEPROM
• Operates autonomously without additional SW
• Eight OV/UV VOUT and One VIN supervisor
• I2C/SMBus serial interface and powered from 6V to 14V

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