MCP6569T-E/ST Equivalent & Substitute Parts

Part Overview

The MCP6569T-E/ST is a general-purpose CMOS comparator manufactured by Microchip Technology, configured as a quad comparator in a 14-TSSOP surface-mount package. This device operates across a supply voltage range of 1.8V to 5.5V and features open-drain outputs suitable for logic-level interfacing. The part is classified as Active and maintains full RoHS3 compliance with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance, package compatibility, and functional characteristics align with the original specification, enabling direct replacement in circuit designs without modification to PCB layout or supporting circuitry.

Substiute Parts

MCP6569T-E/ST

Microchip TechnologyIn Stock: 2876MCP6569T-E/ST Datasheet

Current PartRFQ

MCP6569-E/ST

Microchip TechnologyIn Stock: 1957MCP6569-E/ST Datasheet

DirectRFQ

TLV3404IPWR

Texas InstrumentsIn Stock: 4802TLV3404IPWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MCP6569T-E/ST is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 14-TSSOP surface-mount package with identical 0.173" (4.40mm) width to ensure PCB footprint compatibility without layout modification.

Functional Configuration: Substitute parts must provide four independent comparator elements with CMOS open-drain output architecture.

Supply Voltage Range: The substitute must operate within or encompass the 1.8V to 5.5V supply range of the original part. Substitutes with extended voltage ranges remain compatible for applications using the 1.8V to 5.5V window.

Output Characteristics: Open-drain output type is mandatory to maintain logic-level interface compatibility with existing pull-up resistor networks and downstream circuitry.

Regulatory Compliance: All substitute parts must maintain RoHS3 compliance and MSL 1 rating to satisfy manufacturing and environmental requirements.

Operating Temperature Range: Substitute parts must support the -40°C to 125°C operating window.

Parameter Comparison

Engineering Selection Recommendations

MCP6569-E/ST (Microchip Technology)

The MCP6569-E/ST is a direct functional equivalent to the MCP6569T-E/ST, differing only in packaging format (Tube versus Cut Tape & Digi-Reel). Both parts share identical electrical specifications, including supply voltage range, input offset voltage, input bias current, output current, quiescent current, CMRR/PSRR performance, propagation delay, and hysteresis characteristics. Both maintain Active product status, RoHS3 compliance, and MSL 1 rating. This substitute is suitable for applications where packaging format does not constrain procurement or assembly processes.

TLV3404IPWR (Texas Instruments)

The TLV3404IPWR is a cross-manufacturer substitute that maintains the 14-TSSOP package, four-element comparator configuration, and CMOS open-drain output architecture. The TLV3404IPWR operates across an extended supply voltage range of 2.7V to 16V (or ±1.35V to ±8V), encompassing the 1.8V to 5.5V window of the original part. The TLV3404IPWR exhibits superior performance in specific parameters: input offset voltage of 3.6mV at 15V, lower quiescent current of 950nA, and higher CMRR/PSRR values of 88dB and 105dB respectively. However, the TLV3404IPWR exhibits a significantly longer propagation delay of 300µs compared to the 80ns maximum of the MCP6569T-E/ST, and reduced typical output current of 10mA versus 50mA. The TLV3404IPWR is suitable for applications where extended supply voltage range and lower quiescent current are beneficial, provided that the longer propagation delay does not conflict with timing requirements. Both parts maintain Active status, RoHS3 compliance, and MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can the MCP6569-E/ST replace the MCP6569T-E/ST directly on the PCB?

A: Yes. The MCP6569-E/ST is electrically and mechanically identical to the MCP6569T-E/ST. Both use the 14-TSSOP package with the same footprint dimensions (0.173" width, 4.40mm). The only difference is packaging format (Tube versus Cut Tape & Digi-Reel), which does not affect circuit performance or PCB assembly.

Q: Is the TLV3404IPWR a pin-for-pin replacement?

A: Yes. The TLV3404IPWR uses the same 14-TSSOP package and maintains identical pin assignments for the four-comparator configuration with CMOS open-drain outputs. PCB layout modification is not required for physical substitution.

Q: What are the key differences between the MCP6569T-E/ST and TLV3404IPWR?

A: The primary differences are propagation delay (80ns for MCP6569T-E/ST versus 300µs for TLV3404IPWR), typical output current (50mA versus 10mA), quiescent current (130µA maximum versus 950nA maximum), and supply voltage range (1.8V–5.5V versus 2.7V–16V). The TLV3404IPWR offers superior CMRR and PSRR performance (88dB and 105dB versus 66dB and 70dB).

Q: Can I use the TLV3404IPWR in a 1.8V supply application?

A: No. The TLV3404IPWR minimum supply voltage is 2.7V. Applications requiring 1.8V operation must use the MCP6569T-E/ST or MCP6569-E/ST.

Q: Which substitute should I select for high-speed comparator applications?

A: The MCP6569-E/ST is the appropriate choice. It maintains the 80ns maximum propagation delay of the original MCP6569T-E/ST. The TLV3404IPWR's 300µs propagation delay is unsuitable for high-speed applications.

Q: Are all three parts RoHS3 compliant?

A: Yes. The MCP6569T-E/ST, MCP6569-E/ST, and TLV3404IPWR are all RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the impact of the TLV3404IPWR's lower output current on circuit design?

A: The TLV3404IPWR provides 10mA typical output current compared to 50mA for the MCP6569T-E/ST. Pull-up resistor values and load impedances must be verified to ensure adequate output voltage swing and logic-level compatibility when using the TLV3404IPWR.

Q: Can I mix MCP6569T-E/ST and TLV3404IPWR parts in the same design?

A: Yes, provided that circuit timing and output current requirements are independently verified for each comparator stage. Differences in propagation delay and output current may require separate pull-up resistor networks or load impedance calculations per comparator.