DS1834D

Supervisors Overview

The DS1834D is a dual-channel voltage 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 monitors two independent inputs with threshold voltages of 3.3 V and 5 V. The device features an active high open-drain output type and includes manual reset functionality via a pushbutton interface. It provides a reset delay time of 500 ms and detects power failures without utilizing a watchdog timer or battery backup switching mechanism. The component is housed in a PDIP-8 package, suitable for through-hole mounting, and functions reliably across an operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Dual-channel voltage monitoring with dedicated thresholds for 3.3 V and 5 V systems
• Manual reset capability integrated with pushbutton input support
• Active high open-drain output configuration for flexible logic interfacing
• Power failure detection ensures system integrity during transient events

Supervisors Applications

• Systems requiring supervision of dual power supplies
• Embedded electronics needing manual reset control
• Industrial equipment operating in extended temperature environments

Supervisors Procurement Notes

Verify the specific suffix designation when sourcing replacements, as package variations exist within the family. Confirm that the active high output requirement aligns with your system logic levels, as other variants may offer active low outputs. Ensure the through-hole PDIP-8 package fits your PCB layout constraints. Check current availability status, as this component may be subject to limited distribution channels.

Supervisors Selection Notes

Select this component when dual voltage rails require simultaneous supervision with manual intervention capabilities. The active high output distinguishes it from common active low counterparts, necessitating careful interface design. Consider the 500 ms reset delay duration against your system startup requirements. Verify that the through-hole packaging meets your assembly process specifications compared to surface-mount alternatives.

Supervisors Part Context

This part belongs to the DS1834 series of EconoReset circuits designed for cost-effective power management. The 'D' suffix specifically denotes the PDIP-8 through-hole package variant, distinguishing it from SOIC or uMAX surface-mount versions like the DS1834DS or DS1834U. All variants share core electrical characteristics but differ in physical footprint and pin compatibility.

Supervisors Replacement Considerations

Compatible substitutes include DS1834DS+ and DS1834U-NR, though these utilize different packages (SOIC-8 and uMAX-8 respectively). Verify pinout compatibility before substitution, as package changes may require PCB redesign.