TLV3401CDBVT Equivalent & Substitute Parts

Part Overview

The TLV3401CDBVT 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 ongoing production requirements.

Substiute Parts

TLV3401CDBVT

Texas InstrumentsIn Stock: 2162TLV3401CDBVT Datasheet

Current PartRFQ

TLV3401IDBVR

Texas InstrumentsIn Stock: 38659TLV3401IDBVR Datasheet

MFR RecommendedRFQ

MCP6566RT-E/OT

Microchip TechnologyIn Stock: 18418MCP6566RT-E/OT Datasheet

MFR RecommendedRFQ

MCP6566UT-E/OT

Microchip TechnologyIn Stock: 3013MCP6566UT-E/OT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLV3401CDBVT is determined by the following critical parameters: package type (SOT-23-5), output configuration (CMOS open-drain), number of elements (1), and functional classification (general-purpose comparator). All substitute parts must maintain identical or compatible packaging and output characteristics.

The substitute parts are grouped into two categories:

Category 1: Texas Instruments TLV3401 Series (Direct Family Substitutes)

• TLV3401IDBVR: Same base product number with extended operating temperature range (-40°C to 125°C) and higher supply voltage minimum (2.7V). Product status is Active, ensuring continued availability.

Category 2: Microchip Technology MCP6566 Series (Functional Equivalents)

• MCP6566RT-E/OT and MCP6566UT-E/OT: Alternative general-purpose CMOS comparators with open-drain output in identical SOT-23-5 packaging. These parts operate at lower supply voltages (1.8V to 5.5V) and feature faster propagation delay (80ns vs. 300µs), lower input bias current (1pA vs. 250pA), and higher output current capability (50mA vs. 10mA). Both are Active status products.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Recommended Primary Option): TLV3401IDBVR is the preferred substitute for the TLV3401CDBVT. Both parts share identical electrical characteristics, package configuration, and output type. The TLV3401IDBVR offers extended operating temperature range (-40°C to 125°C versus 0°C to 70°C) and maintains Active product status, ensuring long-term supply availability. Minimum supply voltage increases from 2.5V to 2.7V, which is compatible with most applications. This part requires no circuit redesign and provides drop-in compatibility.

For Applications with Lower Supply Voltage Requirements: MCP6566RT-E/OT and MCP6566UT-E/OT are suitable alternatives when supply voltage is constrained to 1.8V to 5.5V range. These Microchip parts feature significantly faster propagation delay (80ns versus 300µs), lower input bias current (1pA versus 250pA), and higher output current capability (50mA versus 10mA). However, they exhibit lower CMRR and PSRR performance (66dB and 70dB respectively versus 88dB and 105dB). Both MCP6566 variants are Active status products with identical packaging and open-drain output configuration. The difference between MCP6566RT-E/OT and MCP6566UT-E/OT is packaging format (Tape & Reel).

Compliance Considerations: All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and REACH Unaffected status, matching the original part's regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can TLV3401IDBVR be used as a direct replacement for TLV3401CDBVT? A: Yes. Both parts are from the same Texas Instruments TLV3401 family with identical electrical specifications, package type (SOT-23-5), and output configuration (CMOS open-drain). The primary difference is operating temperature range and product status. TLV3401IDBVR is Active status, ensuring continued availability.

Q: What are the key differences between TLV3401IDBVR and MCP6566 series comparators? A: The TLV3401IDBVR maintains the original part's electrical characteristics including 88dB CMRR and 105dB PSRR, with 300µs propagation delay. MCP6566 series offers superior speed (80ns propagation delay), lower input bias current (1pA), and higher output current (50mA), but operates only at 1.8V to 5.5V supply voltage and has lower CMRR/PSRR performance (66dB/70dB). Selection depends on application requirements for speed, supply voltage range, and signal integrity.

Q: Are all substitute parts available in the same packaging? A: Yes. All substitute parts use SC-74A/SOT-753 surface mount packaging (SOT-23-5). The only packaging difference is between Tape & Reel (TR) and Cut Tape (CT) formats for the MCP6566 variants, which does not affect electrical compatibility or PCB assembly.

Q: What is the impact of the TLV3401CDBVT Last Time Buy status? A: Last Time Buy status indicates the manufacturer has discontinued production. Existing inventory is limited. Transitioning to TLV3401IDBVR (Active status) or MCP6566 series (Active status) ensures long-term design sustainability and supply chain continuity.

Q: Do the MCP6566 parts require circuit modifications? A: MCP6566 parts are pin-compatible and functionally equivalent in SOT-23-5 packaging. However, the reduced supply voltage range (1.8V to 5.5V) may require circuit evaluation if the original design operates above 5.5V. The faster propagation delay and different quiescent current may also affect timing-sensitive or low-power applications.

Q: Are all parts RoHS compliant? A: Yes. All parts listed (TLV3401CDBVT, TLV3401IDBVR, MCP6566RT-E/OT, and MCP6566UT-E/OT) are ROHS3 compliant with MSL Level 1 rating and REACH Unaffected status.