DS1834S+

Supervisors Overview

The DS1834S+ is a dual voltage supervisor circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors two independent power supply rails with fixed thresholds of 3.3 V and 5 V. The device features an active low, open-drain reset output and includes a manual reset input for system control. It operates within a supply voltage range up to 5.5 V and maintains accuracy within 2.5%. The component supports a reset delay time of 350 ms and draws a typical operating current of 50 uA. It is housed in an SOIC-8 surface-mount package and functions reliably across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Dual-channel monitoring capability for simultaneous supervision of separate voltage rails
• Integrated manual reset input allowing direct user control over the reset state
• Fixed threshold configuration eliminating the need for external resistor networks
• Low quiescent current consumption suitable for battery-powered applications

Supervisors Applications

• Embedded systems requiring redundant power supply validation
• Industrial control units with multiple logic voltage domains
• Consumer electronics utilizing standard 3.3V and 5V logic levels
• Automotive modules needing robust voltage supervision under varying loads

Supervisors Procurement Notes

Verify the specific suffix designation against official datasheets to confirm pinout compatibility and electrical characteristics. Confirm RoHS compliance status through manufacturer documentation prior to integration. Check for obsolescence notices or lifecycle changes directly from Analog Devices. Ensure thermal management requirements align with the specified operating temperature range during PCB layout.

Supervisors Selection Notes

Select this component when precise monitoring of two distinct voltage levels is required without programmable thresholds. Consider the fixed 3.3V and 5V options if external calibration is undesirable. Evaluate the manual reset feature necessity against software-controlled alternatives. Compare power consumption metrics with other supervisors if battery life is critical. Verify package availability and lead times through authorized distributors.

Supervisors Part Context

This part belongs to the Maxim Integrated supervisory circuit family, designed for reliable power management in digital systems. It complements other voltage monitors by offering dual-channel functionality in a compact form factor. The series emphasizes simplicity and accuracy for standard voltage rails. It serves as a foundational component for ensuring system stability during power-up and brown-out events.

Supervisors Replacement Considerations

Direct substitutes include the DS1834DS+, which shares identical electrical specifications and pin configurations. Verify package compatibility and thermal performance when transitioning between variants. Consult official cross-reference lists for alternative manufacturers offering similar dual-supervisor solutions.