DC2428A

DC2428A is a two-board demonstration system consisting of the DC2382A and DC2363A. The DC2382A contains all the circuitry needed to use the LTC®2975 power system manager to control four power supplies. The DC2363A contains four power supplies (LTM4644-1 quad 4A µModule® regulator) that the LTC2975 configures and controls. The DC2363A and DC2382A demo boards together provide a sophisticated 4-channel digitally programmable power supply system. The LTC2975 is a 4-channel I2C/SMBus/PMBus power system manager that features accurate input current and energy measurement. The device monitors input current and input voltage, and calculates input power and energy. The DC2382A demonstrates the ability of the LTC2975 to sequence, trim, margin, supervise, monitor, and log faults for four power supplies. Each power supply channel’s output voltage and output current is monitored and the LTC2975 monitors its own internal die temperature.

• Sequence, trim, margin, and supervise four power supplies
• Manage Faults, monitor Telemetry, and CreateFault logs
• PMBus compliant command set, supported by LTpowerPlay GUI, margin or trim supplies to 0.25% accuracy
• Four IOUT and one IIN monitor
• Input power measurement and energy accumulation
• Fast OV/UV supervisors per channel, multi-channel fault management
• Automatic fault logging to internal EEPROM
• Operates autonomously without additional software
• Monitors: voltage, current, power, temperature
• I2C/SMBus serial interface and powered from 4.5V to 14V