MAX7705CPA

Supervisors Overview

The MAX7705CPA is a low-cost voltage supervisory circuit designed for microprocessor systems. It operates within a supply voltage range of up to 5.5V and features a threshold voltage of 4.65V with an overvoltage threshold of 4.75V. The device provides an active-low, push-pull output and includes a manual reset function alongside a watchdog timer. It exhibits a reset delay time of 200ms and consumes 350uA of operating current. Accuracy is specified at 2.5%, with power dissipation rated at 640mW. It supports power-fail detection and functions reliably across a temperature range of 0°C to +70°C in a PDIP-8 package.

Supervisors Feature Summary

• Integrates manual reset capability and a watchdog timer for enhanced system reliability
• Provides power-fail detection to monitor supply integrity
• Ensures glitch immunity and guaranteed power-up reset delays without external components

Supervisors Applications

• Low-component-count microprocessor systems
• Cost-sensitive embedded controller designs
• Portable battery-powered devices requiring efficient supervision

Supervisors Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm RoHS compliance details as specified in official documentation. Validate package markings against datasheet specifications to prevent counterfeit substitution. Ensure environmental ratings match application requirements before integration into final assemblies.

Supervisors Selection Notes

Select this component when manual reset functionality and watchdog protection are required in a single-supply environment. Consider the PDIP-8 package for through-hole assembly needs. Evaluate the 350uA quiescent current against system power budgets. Verify that the 0°C to +70°C operating range meets environmental constraints.

Supervisors Part Context

This part belongs to the MAX7705 series of uPower P-Supply Monitors. It serves as a socket-compatible alternative to legacy TL7705 circuits while offering superior power efficiency. The series focuses on providing essential monitoring functions with minimal external component requirements for standard logic families.

Supervisors Replacement Considerations

The MAX7705C/D variants offer functional compatibility. Check package differences between DIP and SO options. Verify pinout alignment for direct replacement scenarios.