DS1814BR-10/T&R

Supervisors Overview

The DS1814BR-10/T&R is a MicroMonitor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 2.0V to 5.5V and features a fixed reset threshold of 4.35V with 10% accuracy. The device provides manual reset functionality, an active-low push-pull output, and a watchdog timer with a timeout period of 1.3 seconds. It is housed in a SOT-23-5 package and supports operation from -40°C to +85°C.

Supervisors Feature Summary

• Integrates manual reset control alongside automatic power-fail detection for comprehensive system supervision.
• Includes a built-in watchdog timer to detect software malfunctions and trigger system recovery.
• Supports both 3.3V and 5V logic systems through configurable reset thresholds.

Supervisors Applications

• Embedded microcontroller system supervision
• Portable electronic device power management
• Industrial control unit monitoring

Supervisors Procurement Notes

Verify the specific suffix designation against official datasheets to confirm functional parameters such as threshold voltage and package type. Ensure compatibility with existing board layouts regarding pin assignments and thermal requirements. Confirm availability status through authorized distributors due to potential lifecycle restrictions.

Supervisors Selection Notes

Select this component when a combined solution for power monitoring, watchdog timing, and manual user intervention is required. Evaluate the trade-off between the integrated watchdog feature and the need for external components in simpler applications. Consider the SOT-23-5 footprint constraints during PCB design.

Supervisors Part Context

This part belongs to the Maxim Integrated MicroMonitor family, designed for low-cost system supervision. It complements other variants like the DS1812 and DS1819 by offering specific manual reset capabilities and watchdog integration within a compact surface-mount package suitable for space-constrained designs.

Supervisors Replacement Considerations

DS1814CR-10+T&R

Supervisors FAQ

Does the DS1814BR-10 include a watchdog timer?

Yes, the device integrates a watchdog timer with a typical timeout period of 1.3 seconds to monitor system health.

What is the reset output polarity?

The reset output is active-low with a push-pull driver configuration.