ISPPAC-POWR604-01TN44I

Power Supply Controllers, Monitors Overview

The ISPPAC-POWR604-01TN44I is a first-generation Power Manager device from Lattice Semiconductor, designed to manage board-mounted power supplies. It integrates hot-swap controllers, power supply OR’ing, sequencing, voltage monitoring, reset generation, trimming, and margining functions. The device features up to 12 differential voltage sensors with immunity to ground plane noise and includes ruggedized CPLD logic for supervisory signal processing. Timer circuits within the device provide programmable delays ranging from tens of microseconds to hundreds of milliseconds, driven by internal or external clocks.

Power Supply Controllers, Monitors Feature Summary

• Integrates hot-swap controllers, power supply OR’ing, sequencing, voltage monitoring, reset generation, trimming, and margining functions.
• Features up to 12 differential voltage sensors with immunity to noise on the ground plane.
• Includes ruggedized CPLD logic with macrocells for sequencing and supervisory signal processing.
• Supports programmable timer circuits for approximate delays between power sequencing events.

Power Supply Controllers, Monitors Applications

• Board-mounted power supply management
• -48V Hot-swap applications
• +12/24V Hot-swap applications

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix '01TN44I' against official Lattice documentation to confirm package type, temperature range, and revision level. Ensure compatibility with system requirements for first-generation Power Manager devices, noting potential timing inaccuracy characteristics compared to second-generation alternatives. Confirm availability through authorized distributors as product lifecycles may vary.

Power Supply Controllers, Monitors Selection Notes

Select this component for designs requiring integrated power management functions in a compact form factor. Consider the first-generation timer accuracy specifications when precise delay settings are critical. Evaluate the need for differential voltage sensing and CPLD-based logic control. Compare against second-generation devices if lower worst-case timing inaccuracy at lower delay settings is required.

Power Supply Controllers, Monitors Part Context

The ISPPAC-POWR604 belongs to the Lattice ispPAC Power Manager family, which simplifies power supply design by integrating multiple analog and digital functions into a single device. This family targets applications needing reliable power sequencing and supervision without complex discrete component counts. The device leverages Lattice's CPLD technology for robust logic control alongside precision analog sensing capabilities.

Power Supply Controllers, Monitors Replacement Considerations

Second-generation Power Manager devices offer improved timer accuracy with a worst-case inaccuracy of 12.5% at lower delay settings, compared to 50% for first-generation devices like the ISPPAC-POWR604. Review datasheets for functional equivalence regarding voltage sensor count and CPLD resources before substituting.