TPS3514N Equivalent & Substitute Parts

Part Overview

The TPS3514N is a multi-voltage supervisor IC from Texas Instruments designed for power management applications. This 3-channel supervisor monitors multiple voltage rails and provides active-low reset output with open-drain or open-collector configuration. The device operates across industrial temperature ranges (-40°C to 85°C) and is packaged in a 14-pin DIP format for through-hole mounting.

The TPS3514N carries a Last Time Buy product status, indicating that Texas Instruments has discontinued this part and existing inventory represents the final production run. This status necessitates identifying equivalent substitute components to ensure design continuity and long-term supply chain reliability.

Substiute Parts

TPS3514N

Texas InstrumentsIn Stock: 1511TPS3514N Datasheet

Current PartRFQ

TPS3808G01DBVR

Texas InstrumentsIn Stock: 120351TPS3808G01DBVR Datasheet

MFR RecommendedRFQ

TPS3513N

Texas InstrumentsIn Stock: 1974TPS3513N Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TPS3514N is evaluated based on functional equivalence within the supervisor IC category. The critical parameters determining substitutability are:

Functional Requirements:

• Number of voltage channels monitored (3 channels)
• Voltage threshold levels (3.3V, 5V, 12V)
• Output type (Open Drain or Open Collector)
• Reset logic polarity (Active Low)
• Reset timeout duration (200ms Minimum)

Environmental & Compliance Requirements:

• Operating temperature range compatibility
• RoHS3 compliance status
• REACH compliance status

Two substitute parts are identified:

TPS3513N — Parametric equivalent offering identical electrical specifications and the same 14-DIP package format. This part maintains full functional compatibility with the TPS3514N while also carrying Last Time Buy status.

TPS3808G01DBVR — Functional alternative with different package and channel configuration. This part provides active-low reset output with open-drain/open-collector configuration but operates as a single-channel supervisor with adjustable voltage thresholds. Substitution requires design-level evaluation due to package change (SOT-23-6 surface mount) and reduced channel count.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Recommended Primary Path):

The TPS3513N is the preferred substitute for the TPS3514N. Both parts are parametrically equivalent multi-voltage supervisors with identical electrical specifications, voltage thresholds, and package format. The TPS3513N maintains the same 14-DIP through-hole package, enabling direct PCB compatibility without layout modifications. Both parts carry ROHS3 compliance and REACH unaffected status. The TPS3513N is also Last Time Buy status, so procurement planning should account for this constraint.

For Alternative Designs (Conditional Substitution):

The TPS3808G01DBVR can serve as a functional alternative when design constraints permit package and channel reconfiguration. This part is currently Active in product status, providing superior long-term availability compared to Last Time Buy parts. The TPS3808G01DBVR operates at an extended temperature range (-40°C to 125°C) and features adjustable voltage thresholds and reset timeout, offering design flexibility. However, substitution requires:

• PCB redesign to accommodate SOT-23-6 surface-mount package
• Circuit modification to implement single-channel monitoring with adjustable thresholds in place of fixed 3-channel monitoring
• Verification that adjustable threshold and timeout parameters meet application requirements

Frequently Asked Questions (FAQ)

Q: Can the TPS3513N be used as a direct drop-in replacement for the TPS3514N?

A: Yes. The TPS3513N is a parametric equivalent with identical electrical specifications, voltage thresholds (3.3V, 5V, 12V), output configuration (open-drain/open-collector), reset logic (active low), and package format (14-DIP through-hole). No circuit modifications are required.

Q: Why is the TPS3808G01DBVR listed as a substitute if it has only 1 channel instead of 3?

A: The TPS3808G01DBVR is a functional alternative for applications where single-channel voltage monitoring is sufficient. It provides the same active-low reset output and open-drain/open-collector configuration. Substitution is conditional and requires design-level evaluation to confirm that single-channel monitoring meets application requirements.

Q: What are the implications of the Last Time Buy status for both TPS3514N and TPS3513N?

A: Last Time Buy status indicates that Texas Instruments has ceased production and existing inventory represents the final available stock. Both parts have finite supply. For long-term design continuity, the TPS3808G01DBVR (Active status) should be evaluated as a forward-looking alternative to ensure future availability.

Q: Can the TPS3808G01DBVR be used in a through-hole application if the TPS3514N is through-hole mounted?

A: No. The TPS3808G01DBVR is a surface-mount device in SOT-23-6 package. Direct through-hole substitution is not possible. Adapter modules or PCB redesign would be required to integrate this part into through-hole applications.

Q: Are all three parts RoHS3 and REACH compliant?

A: Yes. The TPS3514N, TPS3513N, and TPS3808G01DBVR are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the key difference in operating temperature range between the TPS3514N and TPS3808G01DBVR?

A: The TPS3514N operates from -40°C to 85°C (TA), while the TPS3808G01DBVR operates from -40°C to 125°C (TJ). The TPS3808G01DBVR provides a wider temperature range, which may be advantageous for high-temperature applications.