ISPPAC-POWR1208-01TN44I

Power Supply Controllers, Monitors Overview

The ISPPAC-POWR1208-01TN44I is a specialized power management integrated circuit from Lattice Semiconductor's Power Manager II family. It integrates hot-swap controllers, power supply OR'ing, sequencing, voltage monitoring, reset generation, trimming, and margining functions to manage board-mounted power supplies. The device features up to 12 differential voltage sensors with immunity to ground plane noise and includes a ruggedized CPLD core with up to 48 macrocells for supervisory logic. It supports voltage measurement via a 10-bit ADC through I2C and provides up to 8 on-chip DACs for precision margining and trimming.

Power Supply Controllers, Monitors Feature Summary

• Integrates comprehensive power control capabilities including hot-swap, OR'ing, and sequencing within a single component
• Features high-precision differential voltage sensing with inherent immunity to ground plane noise
• Includes an embedded CPLD engine with dedicated macrocells for custom supervisory signal logic
• Provides on-chip digital-to-analog converters for precise voltage margining and trimming operations

Power Supply Controllers, Monitors Applications

• Managing primary board input power supplies such as -48V or +12/24V hot-swap feeds
• Handling redundant supply selection and O'ring for critical system power paths
• Controlling payload secondary power management tasks like supply sequencing and watchdog timers
• Monitoring and protecting onboard flash memory from corruption during fault conditions

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 PAC-Designer software for configuration. Cross-reference application requirements with the Power Manager II cross-reference guide to validate suitability for your specific voltage rails and interface needs before procurement.

Power Supply Controllers, Monitors Selection Notes

Select this device when requiring integrated power sequencing and protection without discrete components. It is suitable for systems needing precise voltage monitoring and programmable logic for complex power states. Consider the 10-bit ADC resolution and I2C interface for system integration. Evaluate the ruggedized CPLD capabilities if custom supervisory logic is required beyond standard monitoring functions.

Power Supply Controllers, Monitors Part Context

This component belongs to the ispPAC-POWR series, which are analog-intensive programmable devices designed for power management applications. Unlike general-purpose FPGAs, these devices combine analog precision with programmable logic to simplify power system design. The Power Manager II family specifically targets reducing bill-of-materials costs by consolidating multiple power management functions into a single chip.

Power Supply Controllers, Monitors Replacement Considerations

Official substitutes include other members of the Power Manager II family such as POWR607, POWR1014, and POWR1014A. Selection depends on matching pin counts, voltage sensor availability, and CPLD macrocell requirements. Consult the Power Manager II Application Cross Reference Guide for direct functional equivalents based on specific power rail configurations.