TLC3702CD Equivalent & Substitute Parts

Part Overview

The TLC3702CD is a dual general-purpose comparator manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. This LinCMOS™ series device features CMOS push-pull TTL output architecture with a supply voltage range of 3V to 16V, making it suitable for analog signal comparison applications across industrial and consumer electronics.

The TLC3702CD is currently in Last Time Buy status, indicating end-of-life production. Identifying equivalent and substitute parts is necessary for design continuity, long-term component sourcing, and production planning. Substitute parts must maintain electrical compatibility across critical parameters including supply voltage, output type, package form factor, and thermal operating range.

Substiute Parts

TLC3702CD

Texas InstrumentsIn Stock: 7344TLC3702CD Datasheet

Current PartRFQ

TLC3702CDR

Texas InstrumentsIn Stock: 18164TLC3702CDR Datasheet

MFR RecommendedRFQ

MAX962ESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 3691MAX962ESA+T Datasheet

MFR RecommendedRFQ

NCS3402DR2G

onsemiIn Stock: 9169NCS3402DR2G Datasheet

MFR RecommendedRFQ

TC75W56FU,LF

Toshiba Semiconductor and StorageIn Stock: 3878TC75W56FU,LF Datasheet

MFR RecommendedRFQ

TS3702CDT

STMicroelectronicsIn Stock: 19228TS3702CDT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLC3702CD is determined by the following critical parameters:

Package Compatibility: All substitute parts must use 8-pin surface-mount packages (8-SOIC or 8-SSOP) to ensure PCB layout compatibility without redesign.

Electrical Compatibility: Substitute parts must support the required supply voltage range or a superset thereof. The TLC3702CD operates from 3V to 16V; substitutes operating within this range or broader ranges are acceptable.

Output Type: The TLC3702CD features CMOS push-pull TTL output. Substitutes with CMOS, push-pull, TTL, or open-drain outputs are functionally compatible, as these output architectures can drive standard logic loads.

Dual Comparator Configuration: All substitutes must contain exactly two independent comparator elements.

Compliance & Certification: All substitute parts must maintain ROHS3 compliance and MSL Level 1 rating to ensure manufacturing and environmental compatibility.

Based on these criteria, four substitute parts are qualified: TLC3702CDR (Texas Instruments), MAX962ESA+T (Analog Devices Inc./Maxim Integrated), NCS3402DR2G (onsemi), and TC75W56FU,LF (Toshiba Semiconductor and Storage).

Parameter Comparison

Engineering Selection Recommendations

TLC3702CDR (Texas Instruments) is the primary recommended substitute. This part is the active production variant of the TLC3702CD, sharing identical electrical specifications and package form factor. Both devices are manufactured by Texas Instruments within the LinCMOS™ series. The TLC3702CDR differs only in packaging format (Cut Tape & Digi-Reel® versus Tube), making it a direct functional replacement with no design modifications required. Product status is Active, ensuring long-term availability and supply chain stability.

TS3702CDT (STMicroelectronics) provides a secondary option with near-identical specifications. Operating voltage range (2.7V ~ 16V, ±1.35V ~ 8V) encompasses the TLC3702CD requirement. Input offset voltage, output current, and CMRR values are equivalent. Package is 8-SOIC, maintaining PCB compatibility. Product status is Active. This part is suitable for applications where supply voltage does not drop below 2.7V.

MAX962ESA+T (Analog Devices Inc./Maxim Integrated) is compatible for applications operating within the 2.7V to 5.5V supply range. This part offers superior propagation delay performance (7ns versus 4.5µs) and lower input offset voltage (1.5mV), making it advantageous for high-speed comparison circuits. However, the restricted supply voltage range (2.7V ~ 5.5V) limits applicability to designs not requiring operation above 5.5V. Product status is Active. ROHS3 compliance is confirmed.

NCS3402DR2G (onsemi) supports the widest supply voltage range (2.5V ~ 16V) and extended operating temperature (-40°C ~ 125°C), providing flexibility for industrial and automotive applications. Open-drain output architecture requires external pull-up resistors, differing from the push-pull output of the TLC3702CD. This configuration is functionally compatible but requires circuit design consideration. Quiescent current is exceptionally low (640nA). Product status is Active. ROHS3 compliance is confirmed.

TC75W56FU,LF (Toshiba Semiconductor and Storage) is compatible for applications within the 1.8V to 7V supply range. Package is 8-TSSOP/8-MSOP (0.110", 2.80mm width), which differs from the 8-SOIC package of the TLC3702CD. PCB layout redesign is required for this substitution. Propagation delay is 680ns, faster than the TLC3702CD. Product status is Active. ROHS3 compliance is confirmed.

Frequently Asked Questions (FAQ)

Q: Can TLC3702CDR be used as a direct replacement for TLC3702CD without circuit modifications?

A: Yes. TLC3702CDR is the active production equivalent of TLC3702CD. Electrical specifications, pin configuration, and package footprint (8-SOIC) are identical. The only difference is packaging format (Cut Tape & Digi-Reel® versus Tube). No circuit modifications are required.

Q: What is the key difference between MAX962ESA+T and TLC3702CD?

A: MAX962ESA+T operates within a narrower supply voltage range (2.7V ~ 5.5V) compared to TLC3702CD (3V ~ 16V). MAX962ESA+T offers faster propagation delay (7ns) and lower input offset voltage (1.5mV). Use MAX962ESA+T only in applications where supply voltage remains below 5.5V.

Q: Why does NCS3402DR2G have open-drain output instead of push-pull?

A: Open-drain output is a design choice by onsemi that reduces quiescent current (640nA) and provides flexibility in output voltage levels. Open-drain outputs require external pull-up resistors to logic supply voltage. This configuration is functionally compatible with push-pull outputs in most applications but requires circuit design consideration.

Q: Can TC75W56FU,LF replace TLC3702CD on existing PCBs?

A: No. TC75W56FU,LF uses 8-TSSOP/8-MSOP package (0.110", 2.80mm width) while TLC3702CD uses 8-SOIC package (0.154", 3.90mm width). Pin pitch and footprint differ, requiring PCB layout redesign. This substitution is suitable only for new designs or PCB revisions.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (TLC3702CDR, MAX962ESA+T, NCS3402DR2G, TC75W56FU,LF, and TS3702CDT) are ROHS3 compliant with MSL Level 1 rating, meeting environmental and manufacturing standards equivalent to TLC3702CD.

Q: Which substitute part has the best performance for high-speed applications?

A: MAX962ESA+T offers the fastest propagation delay at 7ns, compared to 4.5µs for TLC3702CD. However, MAX962ESA+T is limited to 2.7V ~ 5.5V supply voltage. For applications requiring both high speed and extended supply voltage range, TC75W56FU,LF (680ns propagation delay, 1.8V ~ 7V supply) is a suitable alternative.

Q: What is the operating temperature range of each substitute?

A: TLC3702CDR and TS3702CDT: 0°C ~ 70°C (same as TLC3702CD). MAX962ESA+T and TC75W56FU,LF: -40°C ~ 85°C. NCS3402DR2G: -40°C ~ 125°C (widest range for industrial/automotive use).