TLV3401CD Equivalent & Substitute Parts

Part Overview

The TLV3401CD is a general-purpose CMOS comparator with open-drain output in 8-SOIC packaging, manufactured by Texas Instruments. This device operates across a wide supply voltage range (2.5V ~ 16V single supply, ±1.25V ~ 8V dual supply) and is designed for precision voltage comparison applications. 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.

Key Parameters

Parameter	Value
Manufacturer Part Number	TLV3401CD
Manufacturer	Texas Instruments
Category	Linear
Package / Case	8-SOIC (0.154", 3.90mm Width)
Type	General Purpose
Output Type	CMOS, Open-Drain
Voltage - Supply, Single/Dual (±)	2.5V ~ 16V, ±1.25V ~ 8V
Voltage - Input Offset (Max)	3.6mV @ 15V
Current - Input Bias (Max)	250pA @ 15V
Current - Output (Typ)	10mA
Current - Quiescent (Max)	950nA
CMRR, PSRR (Typ)	88dB CMRR, 105dB PSRR
Propagation Delay (Max)	300µs
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Product Status	Last Time Buy
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the TLV3401CD is determined by the following critical parameters:

Electrical Compatibility Requirements:

Output type must be CMOS, Open-Drain or compatible open-drain architecture
Supply voltage range must encompass or exceed the application's operating voltage (minimum 2.5V single supply capability)
Input offset voltage, input bias current, and propagation delay must meet or exceed application timing and accuracy requirements
Quiescent current specifications must be compatible with power budget constraints

Mechanical & Packaging Compatibility:

Package type determines PCB layout compatibility; 8-SOIC packages are directly interchangeable
Alternative packages (SOT-23-5, SC-70-5, SOT-23-6) require PCB redesign but maintain functional equivalence
Surface mount mounting type is consistent across all candidates

Regulatory & Supply Chain Factors:

RoHS3 compliance is maintained across all substitute parts
Product status (Active vs. Last Time Buy) affects long-term availability
Inventory levels and packaging formats (Tube, Cut Tape, Tape & Reel) influence procurement strategy

Substitutes are grouped into two categories: direct package replacements (8-SOIC) and functional equivalents requiring package redesign (smaller form factors with improved specifications).

Parameter Comparison

Parameter	TLV3401CD	TLV3401IDBVR	MAX988ESA+	MAX988ESA+T	MCP6566T-E/LT	MCP6566UT-E/OT	MCP65R46T-1202E/CHY	MCP65R46T-2402E/CHY
Manufacturer	Texas Instruments	Texas Instruments	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology
Package / Case	8-SOIC	SOT-23-5	8-SOIC	8-SOIC	SC-70-5	SOT-23-5	SOT-23-6	SOT-23-6
Output Type	CMOS, Open-Drain	CMOS, Open-Drain	Open-Drain	Open-Drain	CMOS, Open-Drain	CMOS, Open-Drain	CMOS, Open-Drain, TTL	CMOS, Open-Drain, TTL
Voltage - Supply, Single/Dual (±)	2.5V ~ 16V, ±1.25V ~ 8V	2.7V ~ 16V, ±1.35V ~ 8V	2.5V ~ 5.5V, ±1.25V ~ 2.75V	2.5V ~ 5.5V, ±1.25V ~ 2.75V	1.8V ~ 5.5V	1.8V ~ 5.5V	1.8V ~ 5.5V	1.8V ~ 5.5V
Voltage - Input Offset (Max)	3.6mV @ 15V	3.6mV @ 15V	5mV @ 5.5V	5mV @ 5.5V	10mV @ 5.5V	10mV @ 5.5V	10mV @ 5.5V	10mV @ 5.5V
Current - Input Bias (Max)	250pA @ 15V	250pA @ 15V	1pA @ 5.5V	1pA @ 5.5V	1pA @ 5.5V	1pA @ 5.5V	1pA @ 5.5V	1pA @ 5.5V
Current - Output (Typ)	10mA	10mA	—	—	50mA	50mA	50mA	50mA
Current - Quiescent (Max)	950nA	950nA	96µA	96µA	130µA	130µA	4µA	4µA
CMRR, PSRR (Typ)	88dB CMRR, 105dB PSRR	88dB CMRR, 105dB PSRR	80dB CMRR, 80dB PSRR	80dB CMRR, 80dB PSRR	66dB CMRR, 70dB PSRR	66dB CMRR, 70dB PSRR	70dB CMRR, 80dB PSRR	70dB CMRR, 80dB PSRR
Propagation Delay (Max)	300µs	300µs	210ns	210ns	80ns	80ns	8µs	8µs
Operating Temperature	0°C ~ 70°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Last Time Buy	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Package Replacement (8-SOIC):

TLV3401IDBVR is the primary substitute for TLV3401CD. Both devices maintain identical electrical specifications (3.6mV input offset, 88dB CMRR, 105dB PSRR, 300µs propagation delay) and 8-SOIC packaging, enabling drop-in replacement without PCB redesign. TLV3401IDBVR offers extended operating temperature range (-40°C ~ 125°C vs. 0°C ~ 70°C) and Active product status with significantly higher inventory availability (38,633 pcs vs. 836 pcs). This part is recommended for immediate design transitions.

MAX988ESA+ and MAX988ESA+T are functionally equivalent open-drain comparators in 8-SOIC packaging. These Analog Devices/Maxim parts are suitable for applications operating within the 2.5V ~ 5.5V supply range. They offer superior propagation delay performance (210ns vs. 300µs) and extended temperature range (-40°C ~ 85°C). However, the reduced supply voltage range (maximum 5.5V vs. 16V) and lower CMRR/PSRR specifications (80dB vs. 88dB/105dB) require verification against application requirements. Both variants maintain ROHS3 compliance and Active product status.

Alternative Packages (Functional Equivalents):

MCP6566T-E/LT and MCP6566UT-E/OT are Microchip CMOS open-drain comparators in smaller form factors (SC-70-5 and SOT-23-5 respectively). These parts require PCB redesign but offer superior propagation delay (80ns), extended temperature range (-40°C ~ 125°C), and higher output current capability (50mA vs. 10mA). Supply voltage range is limited to 1.8V ~ 5.5V. Both maintain ROHS3 compliance and Active status with substantial inventory.

MCP65R46T-1202E/CHY and MCP65R46T-2402E/CHY are Microchip comparators with integrated voltage reference in SOT-23-6 packaging. These parts feature ultra-low quiescent current (4µA vs. 950nA), TTL-compatible output, and extended temperature range. Propagation delay is 8µs, which is slower than the TLV3401CD. These parts are suitable for low-power applications with relaxed timing requirements and require PCB redesign.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory continuity.

Frequently Asked Questions (FAQ)

Q: Can TLV3401IDBVR directly replace TLV3401CD without PCB changes?

A: Yes. TLV3401IDBVR is a direct substitute in 8-SOIC packaging with identical electrical specifications. No PCB redesign is required. The primary differences are extended operating temperature range and Active product status.

Q: What is the key limitation of MAX988ESA+ compared to TLV3401CD?

A: The MAX988ESA+ series operates only within 2.5V ~ 5.5V supply range, compared to TLV3401CD's 2.5V ~ 16V capability. Applications requiring supply voltages above 5.5V cannot use this substitute. Additionally, CMRR and PSRR are reduced (80dB vs. 88dB/105dB).

Q: Why do MCP6566 and MCP65R46 parts require PCB redesign?

A: These Microchip comparators use smaller packages (SC-70-5, SOT-23-5, SOT-23-6) compared to the 8-SOIC package of TLV3401CD. Pin layouts and footprints differ, requiring PCB layout modifications. However, electrical functionality remains compatible for applications within their specified voltage ranges.

Q: Which substitute offers the fastest response time?

A: MCP6566T-E/LT and MCP6566UT-E/OT offer the fastest propagation delay at 80ns, compared to TLV3401CD's 300µs. MAX988ESA+ series provides 210ns. MCP65R46 series is slower at 8µs. Selection depends on application timing requirements.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with TLV3401CD.

Q: What is the supply voltage range limitation for Microchip alternatives?

A: MCP6566 and MCP65R46 series operate within 1.8V ~ 5.5V supply range. Applications requiring higher supply voltages (above 5.5V) must use TLV3401IDBVR or MAX988ESA+ series.

Q: Which substitute has the lowest quiescent current?

A: MCP65R46T-1202E/CHY and MCP65R46T-2402E/CHY feature the lowest quiescent current at 4µA, compared to TLV3401CD's 950nA. For ultra-low-power applications, these parts are optimal despite slower propagation delay.

Q: Can I use MAX988ESA+ in a design originally specified for TLV3401CD?

A: Substitution is valid only if the application operates within MAX988ESA+'s 2.5V ~ 5.5V supply range and can tolerate reduced CMRR/PSRR (80dB vs. 88dB/105dB). The 8-SOIC package enables direct PCB compatibility. Verify timing requirements, as propagation delay is significantly faster (210ns vs. 300µs).

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