ADM1166ASUZ-REEL7

Overview

The ADM1166ASUZ-REEL7 is a programmable supervisor sequencer IC from Analog Devices, designed for complex power management sequences. It operates within an input voltage range of 3V to 14.4V and consumes 4.2 mA of supply current. The device monitors up to ten inputs and features configurable threshold voltages ranging from 573 mV to 6 V. It provides open collector/drain and push-pull outputs with a fixed reset delay of 400 ms. Accuracy is specified at 0.5%, and it includes a watchdog timer. The component functions in temperatures from -40°C to +85°C and is housed in a 48-TQFP package.

Feature Summary

• Supports sequencing of up to ten monitored inputs with configurable thresholds
• Integrates a watchdog timer for system reliability monitoring
• Provides mixed output types including open collector/drain and push-pull configurations

Applications

• Complex power-up and power-down sequence control in multi-rail systems
• System supervision requiring precise voltage threshold monitoring
• Industrial equipment requiring robust watchdog functionality

Procurement Notes

Verify the specific suffix REEL7 confirms tape-and-reel packaging when ordering. Confirm the 48-TQFP package dimensions match your PCB footprint requirements. Ensure the 3V to 14.4V operating range aligns with your system's supply rails. Check that the 0.5% accuracy meets your design tolerances. Validate thermal performance within the -40°C to +85°C industrial range for your application environment.

Selection Notes

Select this component when multiple voltage rails require coordinated sequencing rather than simple single-supervisor tasks. The wide input voltage range supports various industrial power architectures. Consider the integrated watchdog if software reliability is critical. The mix of output drivers simplifies interfacing with different logic families without external level shifters.

Part Context

This part belongs to the Super Sequencer family from Analog Devices, specialized for managing complex power transitions. Unlike basic supervisors, it handles multiple inputs simultaneously. The ADM1166 series is distinct from standard reset generators by its programmability and multi-channel capability, targeting high-reliability embedded and industrial applications.

Replacement Considerations

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