ISPPAC-POWR1220AT8-01T100I

Power Supply Controllers, Monitors Overview

The ispPAC-POWR1220AT8 is an in-system programmable power supply monitoring, sequencing, and margining controller. It simultaneously monitors up to 12 power supplies and provides up to 20 output control signals. The device features a 48-macrocell CPLD for sequence control, four independent timers with intervals from 32 µs to 2 seconds, and a 10-bit ADC for I2C voltage measurement. It supports dynamic voltage control via I2C, offers eight analog outputs for margining/trimming, and includes high-voltage FET drivers for ramp-up/down control. Operating voltage ranges from 2.8V to 3.9V.

Power Supply Controllers, Monitors Feature Summary

• Integrates simultaneous monitoring of multiple power supplies with embedded CPLD logic for complex sequencing and supervisory functions.
• Provides precise voltage margining and trimming capabilities through on-chip DACs and dynamic digital closed-loop control.
• Features high-voltage FET drivers for direct power supply ramp-up and ramp-down management.
• Supports flexible timing sequences using independent programmable timers and differential analog inputs with noise immunity.

Power Supply Controllers, Monitors Applications

• Power supply sequencing and supervision in telecommunications infrastructure
• Voltage monitoring and margining in industrial control systems
• Hot-swap controller integration for server and storage applications
• Redundant power selection and OR'ing logic in critical electronics

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix (e.g., -01T100I) against official Lattice documentation to confirm package type, temperature range, and tape-and-reel specifications. Ensure compatibility with PAC-Designer software for configuration. Confirm AEC-Q100 qualification status if automotive application is required, as standard variants may differ from automotive-grade versions like the POWR1014/A.

Power Supply Controllers, Monitors Selection Notes

Select this component when design requirements include monitoring more than four power rails or necessitate integrated FET driving for power sequencing. It is suitable for designs requiring precise voltage trimming without external microcontrollers. Consider the 48-macrocell CPLD capacity for state machine implementation. Evaluate the 10-bit ADC resolution against system accuracy needs. Compare against simpler supervisors if only basic reset generation is needed.

Power Supply Controllers, Monitors Part Context

The ispPAC-POWR1220AT8 belongs to the Power Manager II family, designed to reduce BOM costs by integrating hot-swap, OR'ing, sequencing, and monitoring functions into a single device. It complements Lattice's FPGA portfolio by handling power integrity tasks that would otherwise require discrete components or general-purpose processors. This family targets applications demanding high reliability and fast fault response times.

Power Supply Controllers, Monitors Replacement Considerations

Public confirmed substitute part numbers: POWR1014, POWR1014A, POWR607. Note that POWR1014/A is AEC-Q100 qualified for automotive use. Verify pinout and macrocell count differences before substitution.