DS1831A+ Equivalent & Substitute Parts

Part Overview

The DS1831A+ is a multi-voltage supervisor integrated circuit manufactured by Analog Devices Inc./Maxim Integrated, designed for power management applications requiring multi-channel voltage monitoring. This device monitors four voltage rails with selectable thresholds (3.3V, 5V, or adjustable) and provides active-low reset output via open drain or open collector configuration. The DS1831A+ is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support, maintenance, and new design implementations where legacy compatibility is required.

Substiute Parts

DS1831A+

Analog Devices Inc./Maxim IntegratedIn Stock: 789DS1831A+ Datasheet

Current PartRFQ

DS1831A+

Analog Devices Inc./Maxim IntegratedIn Stock: 789DS1831A+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS1831A+ is determined by strict equivalence across the following critical parameters:

• Functional Type: Multi-voltage supervisor with 4-channel monitoring capability
• Voltage Threshold Support: Compatibility with 3.3V, 5V, and adjustable threshold configurations
• Output Stage: Open drain or open collector output topology
• Reset Behavior: Active-low reset signal with selectable timeout periods (10ms, 100ms, 1,000ms minimum)
• Package Compatibility: 16-DIP through-hole form factor (0.300", 7.62mm pitch)
• Operating Temperature Range: -40°C to +85°C minimum
• Compliance Requirements: ROHS3 compliance and MSL Level 1 rating

Only components matching all these parameters across the specified ranges qualify as direct substitutes. Parametric equivalents must maintain identical electrical characteristics, output configuration, and physical packaging to ensure drop-in replacement capability without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

The DS1831A+ is classified as obsolete. When sourcing this component for replacement or maintenance applications, the parametric equivalent DS1831A+ maintains full compatibility across all specified electrical and mechanical parameters. Both the main part and its equivalent are ROHS3 compliant and carry MSL Level 1 rating, ensuring compliance with current environmental and reliability standards.

Selection between available inventory should prioritize components with confirmed ROHS3 certification and MSL Level 1 status. The 16-DIP through-hole package remains standard across all equivalent options, permitting direct board-level substitution without layout modification.

Frequently Asked Questions (FAQ)

Q: Can the DS1831A+ be replaced with other multi-voltage supervisors from different manufacturers?

A: Direct substitution requires matching all critical parameters: 4-channel monitoring, 3.3V/5V/adjustable threshold support, open drain/open collector output, active-low reset with 10ms/100ms/1,000ms timeout options, 16-DIP package, and -40°C to +85°C operating range. Components from other manufacturers must meet these specifications exactly.

Q: Is the 16-DIP package interchangeable with surface-mount alternatives?

A: No. The DS1831A+ is specified for through-hole mounting in 16-DIP form factor. Surface-mount packages require circuit board redesign and are not considered direct substitutes.

Q: What does the MSL Level 1 rating indicate?

A: MSL Level 1 indicates unlimited shelf life without moisture baking requirements, providing maximum flexibility for storage and handling in standard industrial environments.

Q: Are there any differences between DS1831A+ units from different production batches?

A: All DS1831A+ components meeting the specified parameters are electrically and mechanically equivalent. Differences may exist only in manufacturing date codes and packaging lot numbers, which do not affect functional performance.

Q: How should the reset timeout be selected for a specific application?

A: Reset timeout selection (10ms, 100ms, or 1,000ms minimum) depends on system power-up sequencing requirements. The appropriate timeout ensures all monitored voltage rails stabilize before the reset signal is released to downstream logic.