The DC1029A is a demonstration board for evaluating the performance of the LTC2928 multichannel power supply sequencer and supervisor. The LTC2928 sequences and monitors up to four power channels in power up and power down, and it monitors those channel outputs in the steady state, when power goes to loads. Sequencing is accomplished by controlling the power supply enable inputs or N-channel MOSFET gates with the LTC2928 controlling outputs. Supervisory functions include undervoltage and overvoltage monitoring, and capturing the output state information in the event of a system fault. Sequencing thresholds, order and timing are configured with just a few external components, negating the need for PC board layout or software changes during system development. Multiple LTC2928s may be easily connected to sequence an unlimited number of power supplies.
● Easily configure power management without software
● Controls up to four supplies per device
● Cascades for additional supplies
● Staged supply sequencing with adjustable time positions
● Fault event reporting with diagnostics
● Selectable system shutdown on fault
● Overvoltage and/or fault indication
● Configurable undervoltage and overvoltage thresholds
● Charge pumped enable pins drive N-channel MOSFETs
● 1.5% undervoltage monitor accuracy
