ADM1169ASTZ

Overview

The ADM1169ASTZ is a programmable supervisor sequencer IC manufactured by Analog Devices Inc. It integrates power monitoring, timing control, and voltage margining capabilities in a single chip. The device features eight programmable inputs for monitoring up to eight power rails, detecting under-voltage, over-voltage, or out-of-window faults with high precision. It includes an integrated State Engine (SE) for flexible logic sequencing and a non-volatile EEPROM for fault logging. Additionally, it contains a 12-bit ADC and four 8-bit DACs for closed-loop voltage adjustment. The component operates within specified threshold ranges and supports manual reset functionality.

Feature Summary

• Integrates comprehensive power monitoring and timing control for multi-supply systems
• Includes a configurable State Engine for complex sequence logic and fault handling
• Features built-in voltage margining via integrated ADC and DACs for precise output control

Applications

• Multi-rail power supply supervision in industrial equipment
• Voltage margining loops for DC-DC converter regulation
• System boot sequence management for embedded platforms

Procurement Notes

Verify current availability status as the component may be subject to discontinuation notices. Confirm package integrity upon receipt, as moisture sensitivity requires proper handling. Ensure compatibility with existing design specifications before integration, considering potential end-of-life constraints for long-term production planning.

Selection Notes

Select this component when a unified solution for supervising multiple power rails and managing startup sequences is required. It is suitable for designs needing precise voltage margining without external microcontrollers. Consider the LQFP-32 package constraints and operating temperature range during thermal analysis.

Part Context

This part belongs to the ADM1169 series of supervisory circuits designed for complex power management tasks. It replaces discrete monitoring components by combining fault detection, sequencing, and analog-to-digital conversion functions into one integrated circuit, simplifying board layout and reducing bill of materials complexity.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.