DS1705ESA/T&R

Supervisors Overview

The DS1705ESA+ is a MicroMonitor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 1.2 V to 5.5 V and features a single monitored input with a threshold voltage of 5 V. The device provides an active low, push-pull output and includes a watchdog timer functionality. It has a reset delay time of 205 ms and offers power failure detection capabilities. The accuracy is specified at 5%, with a maximum operating current of 60 uA. The overvoltage threshold is set at 4.75 V. The component is available in SOIC-8 packages and supports both tube and reel packaging formats.

Supervisors Feature Summary

• Integrates voltage monitoring and watchdog timer functions for system supervision
• Provides power failure detection to ensure reliable operation during voltage drops
• Features active low push-pull output for direct interface compatibility

Supervisors Applications

• Microprocessor system supervision
• Power management circuits requiring voltage monitoring
• Embedded systems needing watchdog protection

Supervisors Procurement Notes

Verify the specific package variant required, as the DS1705ESA+ designation covers both tube and reel packaging options. Confirm that the 5V threshold aligns with the target application's voltage levels. Check availability status through authorized distributors, as supply may be limited or restricted in certain regions. Ensure compliance with RoHS standards if applicable to the project requirements.

Supervisors Selection Notes

Select this component when a single-input voltage monitor with integrated watchdog functionality is needed. Consider the 5V threshold and 205ms reset delay for timing-sensitive applications. Evaluate the 60uA operating current against power constraints. Verify that the SOIC-8 package fits the PCB layout requirements. Compare accuracy specifications against other variants if higher precision is necessary.

Supervisors Part Context

The DS1705 belongs to the MicroMonitor family of supervisory circuits from Maxim Integrated. These devices are designed to monitor power supplies and provide reset signals to microprocessors. The series typically includes variations with different thresholds and packaging options. This specific model combines voltage monitoring with watchdog timer capabilities in a compact surface-mount package.

Supervisors Replacement Considerations

Check for direct substitutes within the DS1705 series such as DS1705EPA. Verify pinout compatibility and electrical parameter alignment before substitution. Consult official documentation for any functional differences between package types or manufacturing revisions.