Analog Devices LTM4678 | Demoboard DC2638A-D

Beschreibung

Demonstration circuit 2638A-D is a high efficiency, high density, μModule regulator with 4.5V to 16V input range. The output voltage is adjustable from 0.5V to 3.3V, and it can supply 250A maximum load current. The demo board has five LTM4678 μModule® regulators, and the LTM4678 is a dual 25A or single 50A step-down regulator with PMBus power system management. Please see LTM4678 data sheet for more detailed information.DC2638A-D powers up to default settings and produce power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay® onto your PC and use ADI’s I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on-the-fly and store the configuration in EEPROM, view telemetry of voltage, current, temperature and fault status.

Eigenschaften

• Dual Digitally Adjustable Analog Loops with Digital Interface for Control and Monitoring
• Wide Input Voltage Range: 4.5V to 16V
• Output Voltage Range: 0.5V to 3.4V
• ±0.5% Maximum DC Output Error Over Temperature
• ±3.5% Current Readback Accuracy, –20°C to 125°C
• Sub-Milliohm DCR Current Sensing
• Integrated Input Current Sense Amplifier
• 400kHz PMBus-Compliant I2C Serial Interface
• Supports Telemetry Polling Rates up to 125Hz
• Integrated 16-Bit ∆Σ ADC
• Constant Frequency Current Mode Control
• Parallel and Current Share Up to 250A
• 16mm × 16mm × 5.86mm CoP-BGA Package Readable Data
• Input and Output Voltages, Currents, and Temperatures
• Running Peak Values, Uptime, Faults and Warnings
• Onboard EEPROM Fault Log Record Writable Data and Configurable Parameters
• Output Voltage, Voltage Sequencing and Margining
• Digital Soft-Start/Stop Ramp, Program Analog Loop
• OV/UV/OT, UVLO, Frequency and Phasing

Typische Anwendungen

• System Optimization, Characterization and Data Mining in Prototype, Production and Field Environments

Weiterführende Informationen

• Datenblatt