TLV3401CDBVR Equivalent & Substitute Parts

Part Overview

The TLV3401CDBVR is a general-purpose CMOS comparator with open-drain output in SOT-23-5 surface mount packaging. This device operates across a wide supply voltage range of 2.5V to 16V (single supply) or ±1.25V to 8V (dual supply), making it suitable for analog signal comparison applications in industrial and consumer electronics. The part is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for new production runs or design revisions.

Substiute Parts

TLV3401CDBVR

Texas InstrumentsIn Stock: 5297TLV3401CDBVR Datasheet

Current PartRFQ

TLV3401IDBVR

Texas InstrumentsIn Stock: 38659TLV3401IDBVR Datasheet

MFR RecommendedRFQ

TLV3401CDBVT

Texas InstrumentsIn Stock: 2162TLV3401CDBVT Datasheet

Parametric EquivalentRFQ

MCP6566T-E/OT

Microchip TechnologyIn Stock: 17254MCP6566T-E/OT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLV3401CDBVR is determined by the following critical parameters:

Packaging Compatibility: All substitute parts must use SOT-23-5 surface mount packaging (SC-74A, SOT-753 case) to ensure PCB footprint compatibility without layout modifications.

Functional Equivalence: Substitute parts must be general-purpose comparators with CMOS open-drain output topology to maintain circuit behavior and interface compatibility.

Electrical Operating Range: The supply voltage range, input offset voltage, input bias current, output current capability, and quiescent current must support the application requirements. Parts with wider or equal operating ranges are acceptable substitutes.

Performance Characteristics: Propagation delay, CMRR, and PSRR values determine signal fidelity and response speed. Substitutes with equal or superior performance are acceptable.

Temperature Rating: Operating temperature range must meet or exceed the application requirements. Extended temperature range parts (industrial or automotive grade) are acceptable substitutes for commercial temperature applications.

Compliance & Certifications: RoHS3 compliance and REACH unaffected status ensure regulatory alignment. MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints during handling and storage.

Parameter Comparison

Engineering Selection Recommendations

TLV3401IDBVR (MFR Recommended): This Texas Instruments part is the primary recommended substitute. It maintains identical electrical performance to the TLV3401CDBVR with marginally relaxed minimum supply voltage (2.7V vs. 2.5V). The extended operating temperature range (-40°C to 125°C) provides greater flexibility for industrial applications. Active product status ensures long-term availability and supply chain stability. Available in Cut Tape and Digi-Reel packaging formats.

TLV3401CDBVT (Parametric Equivalent): This part is electrically identical to the main part number with identical supply voltage range and temperature rating. It differs only in packaging format (Cut Tape vs. Tape & Reel). Last Time Buy status indicates this is not a long-term solution. Use only when specific packaging requirements mandate cut tape format and supply is confirmed.

MCP6566T-E/OT (Cross-Manufacturer Alternative): This Microchip Technology comparator offers superior performance in specific parameters: lower propagation delay (80ns vs. 300µs), higher output current capability (50mA vs. 10mA), and extended temperature rating (-40°C to 125°C). However, it operates at reduced supply voltage range (1.8V to 5.5V), higher input offset voltage (10mV vs. 3.6mV), and significantly higher quiescent current (130µA vs. 950nA). This part is suitable only for low-voltage applications where the TLV3401 supply range is not required. Active product status ensures availability.

Selection Criteria: For direct replacement in existing designs, select TLV3401IDBVR. For new designs requiring extended temperature operation, TLV3401IDBVR is preferred. For low-voltage applications below 2.7V, MCP6566T-E/OT is acceptable if propagation delay and quiescent current specifications are compatible with circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can TLV3401IDBVR be used as a direct replacement for TLV3401CDBVR?

A: Yes. TLV3401IDBVR is electrically compatible with identical performance specifications. The minimum supply voltage is marginally higher (2.7V vs. 2.5V), which is acceptable in most applications. The extended temperature range provides additional operational margin. Packaging format differs (Cut Tape vs. Tape & Reel), but the SOT-23-5 footprint is identical.

Q: What is the key difference between TLV3401CDBVT and TLV3401CDBVR?

A: These parts are electrically identical. The difference is packaging format: CDBVR is supplied in Tape & Reel format, while CDBVT is supplied in Cut Tape format. Both have identical SOT-23-5 footprints and electrical performance. Selection depends on procurement and assembly requirements.

Q: Is MCP6566T-E/OT a suitable substitute for all applications?

A: No. MCP6566T-E/OT is suitable only for applications operating at 1.8V to 5.5V supply voltage. It is not compatible with designs requiring the TLV3401's extended supply range (2.5V to 16V). Additionally, its higher quiescent current (130µA vs. 950nA) may impact battery-powered applications. Verify propagation delay (80ns vs. 300µs) and input offset voltage (10mV vs. 3.6mV) compatibility before substitution.

Q: Why is TLV3401CDBVR marked as Last Time Buy?

A: Last Time Buy status indicates Texas Instruments has discontinued production of this specific part number. Existing inventory is available for purchase, but no new production will occur. TLV3401IDBVR is the recommended active replacement for future orders and new designs.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (TLV3401IDBVR, TLV3401CDBVT, and MCP6566T-E/OT) are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity constraints. These parts do not require special dry-pack storage or baking procedures before soldering, simplifying handling and storage logistics compared to higher MSL rated components.

Q: Can I mix substitute parts in the same production batch?

A: Yes, provided all parts meet the electrical and thermal requirements of the application. However, using a single part number throughout production is recommended for consistency, traceability, and supply chain management. If multiple part numbers are used, document the substitution rationale and verify compatibility through design validation.