DS1831CS/T&R Equivalent & Substitute Parts

Part Overview

The DS1831CS/T&R is a multi-voltage supervisor IC from Analog Devices Inc./Maxim Integrated, designed for power management applications requiring monitoring of four voltage channels. This device features open drain or open collector output configuration with active low reset functionality and is housed in a 16-SOIC surface mount package. The DS1831CS/T&R is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations.

Substiute Parts

DS1831CS/T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 1067DS1831CS/T&R Datasheet

Current PartRFQ

DS1831CS+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 906DS1831CS+T&R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the DS1831CS/T&R is determined by strict equivalence across the following critical parameters:

• Voltage Monitoring Channels: 4 channels required
• Voltage Threshold Configuration: 2.5V, 3.3V, Adj, Adj
• Output Type: Open Drain or Open Collector
• Reset Polarity: Active Low
• Reset Timeout Range: 10ms, 100ms, 1,000ms Minimum
• Operating Temperature: -40°C to 85°C (TA)
• Package: 16-SOIC surface mount
• Manufacturer: Analog Devices Inc./Maxim Integrated

The substitute part DS1831CS+T&R maintains identical electrical and mechanical specifications while differing in packaging format (Tape & Reel versus individual packaging) and product status (Active versus Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The DS1831CS+T&R serves as the direct functional equivalent to the obsolete DS1831CS/T&R. Both parts share identical electrical specifications and pinout configuration, ensuring drop-in compatibility at the circuit level.

The primary distinction between these parts is product status and compliance certification. The DS1831CS+T&R maintains Active product status from the manufacturer, ensuring continued availability and technical support. Additionally, the DS1831CS+T&R achieves ROHS3 compliance, whereas the original DS1831CS/T&R is RoHS non-compliant.

Packaging format differs between the two parts: the DS1831CS+T&R is supplied in Tape & Reel format, which is standard for high-volume manufacturing and automated assembly processes. This packaging format is suitable for pick-and-place equipment and reduces per-unit handling costs in production environments.

For new designs or system replacements requiring the DS1831 supervisor functionality, the DS1831CS+T&R is the appropriate selection based on active product status and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the DS1831CS+T&R be used as a direct replacement for the DS1831CS/T&R?

A: Yes. Both parts are electrically and mechanically identical. The DS1831CS+T&R maintains the same four-channel voltage monitoring capability, threshold configurations, output type, reset polarity, and operating temperature range. Pin-for-pin compatibility is confirmed.

Q: What is the difference between the packaging formats?

A: The DS1831CS/T&R uses individual packaging, while the DS1831CS+T&R is supplied in Tape & Reel (TR) format. Tape & Reel packaging is optimized for automated assembly and high-volume production. Both formats contain the same die and provide identical electrical performance.

Q: Why is the original part marked as obsolete?

A: The DS1831CS/T&R is classified as obsolete by the manufacturer. The DS1831CS+T&R represents the current active product offering with the same functionality and improved compliance status.

Q: Are there compliance differences between these parts?

A: Yes. The DS1831CS+T&R is ROHS3 compliant, while the DS1831CS/T&R is RoHS non-compliant. Both parts maintain identical REACH and ECCN classifications. For applications requiring RoHS compliance, the DS1831CS+T&R is the appropriate selection.

Q: What are the voltage threshold options for this supervisor?

A: The DS1831 supervisor provides four monitored channels with thresholds configured as 2.5V, 3.3V, and two adjustable channels. This configuration supports multi-rail power supply monitoring in systems requiring diverse voltage level supervision.

Q: What reset timeout options are available?

A: The DS1831 supervisor offers three reset timeout options: 10ms, 100ms, and 1,000ms minimum. The specific timeout is determined by the part number suffix and cannot be changed after manufacturing.