ISPPAC-POWR1220AT8-01TN100I

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 includes up to eight analog outputs for margining/trimming and four high-voltage FET drivers. The operating voltage range is 2.8 V to 3.9 V.

Power Supply Controllers, Monitors Feature Summary

• Integrated 48-macrocell CPLD implements state machines and combinatorial logic functions for complex power sequencing.
• Supports dynamic voltage control and trimming of up to eight power supplies via I2C interface.
• Includes four hardware-selectable voltage profiles and independent digital closed-loop trim functions.
• Features differential analog monitor inputs with immunity to ground plane noise.

Power Supply Controllers, Monitors Applications

• Multi-rail server and storage system power management
• Industrial equipment power sequencing and supervision
• Telecommunications infrastructure power control
• Automotive electronic power distribution units

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix '01TN100I' against official Lattice documentation to confirm package type (TQFP-100) and temperature grade (Industrial). Ensure compatibility with PAC-Designer software for configuration. Confirm that the part number corresponds to the standard ispPAC-POWR1220AT8 functional specification without proprietary modifications.

Power Supply Controllers, Monitors Selection Notes

Select this component when designing systems requiring simultaneous monitoring of multiple voltage rails with precise sequencing. It is suitable for applications needing integrated margining capabilities and hardware-based fault protection. The embedded CPLD reduces external logic requirements, simplifying board layout and reducing bill of materials complexity for power management subsystems.

Power Supply Controllers, Monitors Part Context

This device belongs to the Power Manager II family from Lattice Semiconductor. It is designed as a robust solution for managing board-mounted power supplies, integrating hot-swap controllers, OR’ing, sequencing, and reset generation. The family targets industrial, automotive, and computing applications where reliable power integrity is critical.

Power Supply Controllers, Monitors Replacement Considerations

Consult the Lattice Product Selector Guide or Application Cross Reference Guide for verified substitutes. Potential alternatives within the Power Manager II family include POWR607, POWR1014, and POWR1014A, depending on the required number of monitored supplies and macrocell count.

Power Supply Controllers, Monitors FAQ

What is the maximum number of power supplies the ispPAC-POWR1220AT8 can monitor?

The device can simultaneously monitor up to 12 power supplies using its independent analog monitor inputs.

How does the device handle power supply margining and trimming?

It provides up to eight analog outputs for margining and trimming power supply voltages, supporting dynamic control through the I2C interface.

What programming interface is used for configuration?

Configuration is performed via a 2-wire I2C/SMBus compatible interface, allowing for in-system programming and monitoring.