TLV3401IP Equivalent & Substitute Parts

Part Overview

The TLV3401IP is a general-purpose CMOS comparator with open-drain output in 8-DIP through-hole packaging, manufactured by Texas Instruments. This device is classified as Last Time Buy, indicating discontinued production. Finding equivalent and substitute parts is necessary to support ongoing designs, legacy system maintenance, and procurement continuity. Suitable alternatives must maintain functional equivalence across critical electrical parameters while accommodating different packaging and mounting technologies.

Substiute Parts

TLV3401IP

Texas InstrumentsIn Stock: 929TLV3401IP Datasheet

Current PartRFQ

TLV3401IDBVR

Texas InstrumentsIn Stock: 38659TLV3401IDBVR Datasheet

MFR RecommendedRFQ

MCP65R46T-2402E/CHY

Microchip TechnologyIn Stock: 3739MCP65R46T-2402E/CHY Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLV3401IP is determined by the following critical parameters:

Functional Equivalence Criteria:

• Comparator type: General purpose CMOS with open-drain output
• Supply voltage range: Minimum 2.7V ~ 16V single supply capability
• Input offset voltage: Maximum 3.6mV @ 15V
• Input bias current: Maximum 250pA @ 15V
• Output current capability: Minimum 10mA typical
• Quiescent current: Maximum 950nA
• Common-mode rejection ratio: Minimum 88dB
• Power supply rejection ratio: Minimum 105dB
• Propagation delay: Maximum 300µs
• Operating temperature range: -40°C ~ 125°C

Packaging Considerations: The TLV3401IP uses through-hole 8-DIP packaging. Direct pin-compatible substitutes in the same package are preferred for board-level compatibility. Surface-mount alternatives (SOT-23-5, SOT-23-6) require PCB redesign but offer improved availability and modern manufacturing alignment.

Identified Substitutes:

1. TLV3401IDBVR (Texas Instruments) – Same base product (TLV3401), identical electrical specifications, surface-mount SOT-23-5 package, Active product status
2. MCP65R46T-2402E/CHY (Microchip Technology) – Comparator with integrated voltage reference, modified electrical specifications, surface-mount SOT-23-6 package, Active product status

Parameter Comparison

Engineering Selection Recommendations

TLV3401IDBVR Selection Criteria: The TLV3401IDBVR is the primary substitute for the TLV3401IP. Both devices share identical base product designation (TLV3401) and maintain electrical parameter equivalence across all critical specifications. The TLV3401IDBVR is manufactured by Texas Instruments with Active product status, ensuring long-term availability and supply chain stability. The transition from through-hole 8-DIP to surface-mount SOT-23-5 packaging requires PCB redesign but aligns with modern manufacturing practices. ROHS3 compliance and REACH unaffected status match the original part. This substitute is suitable for new designs and legacy system updates where PCB modification is feasible.

MCP65R46T-2402E/CHY Selection Criteria: The MCP65R46T-2402E/CHY from Microchip Technology provides functional comparator capability with integrated voltage reference functionality. This device exhibits reduced supply voltage range (1.8V ~ 5.5V versus 2.7V ~ 16V), higher input offset voltage (10mV @ 5.5V versus 3.6mV @ 15V), and lower CMRR/PSRR performance (70dB/80dB versus 88dB/105dB). However, it offers superior propagation delay (8µs versus 300µs) and higher output current capability (50mA versus 10mA). This substitute is applicable only in designs where supply voltage remains within 1.8V ~ 5.5V range and where the integrated voltage reference provides system-level benefit. Active product status and ROHS3 compliance support procurement continuity.

Frequently Asked Questions (FAQ)

Q: Can TLV3401IDBVR directly replace TLV3401IP without circuit modification?

A: Electrical substitution is direct due to identical specifications. However, packaging differs: TLV3401IDBVR uses surface-mount SOT-23-5 versus through-hole 8-DIP. PCB layout redesign is required. Pin functionality remains equivalent when properly mapped to the new package footprint.

Q: What are the key differences between TLV3401IDBVR and MCP65R46T-2402E/CHY?

A: TLV3401IDBVR maintains full electrical equivalence to the original TLV3401IP. MCP65R46T-2402E/CHY introduces functional differences: narrower supply voltage range (1.8V ~ 5.5V), higher input offset voltage (10mV), lower CMRR/PSRR, but faster propagation delay (8µs) and higher output current (50mA). Selection depends on circuit requirements and supply voltage constraints.

Q: Is the MCP65R46T-2402E/CHY suitable for designs requiring ±1.35V ~ 8V dual supply operation?

A: No. The MCP65R46T-2402E/CHY operates only within 1.8V ~ 5.5V single supply range and does not support dual supply configuration. Designs requiring dual supply operation must use TLV3401IDBVR or equivalent TLV3401 variants.

Q: What is the impact of integrated voltage reference in MCP65R46T-2402E/CHY?

A: The integrated voltage reference is an additional functional element not present in TLV3401IP. This feature may provide system-level benefit in applications requiring precision reference voltage. However, it does not affect comparator substitution compatibility; it represents added functionality rather than modified core comparator operation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. Both TLV3401IDBVR and MCP65R46T-2402E/CHY maintain ROHS3 compliance, matching the original TLV3401IP specification. All parts are REACH unaffected.

Q: Which substitute offers the best long-term availability?

A: Both TLV3401IDBVR and MCP65R46T-2402E/CHY carry Active product status from their respective manufacturers, indicating ongoing production and supply chain support. TLV3401IDBVR maintains manufacturer continuity (Texas Instruments) with the original part, while MCP65R46T-2402E/CHY represents an alternative source from Microchip Technology.