TLC3702MJG Equivalent & Substitute Parts

Part Overview

The TLC3702MJG is a low-power LinCMOS dual comparator manufactured by Texas Instruments, designed for general-purpose comparison applications. It features CMOS push-pull output architecture and operates across a wide supply voltage range of 4V to 16V. The device is packaged in an 8-CDIP through-hole configuration.

This part carries a Last Time Buy product status, indicating it is no longer in active production. Finding equivalent substitute parts is necessary to ensure design continuity and maintain component availability for new production runs and system updates.

Substiute Parts

TLC3702MJG

Texas InstrumentsIn Stock: 1505TLC3702MJG Datasheet

Current PartRFQ

TLC3702IDR

Texas InstrumentsIn Stock: 37260TLC3702IDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLC3702MJG is determined by the following critical parameters:

• Functional equivalence: Dual general-purpose comparator with CMOS push-pull output
• Supply voltage compatibility: Operating range must encompass or overlap with 4V ~ 16V
• Electrical performance: Input offset voltage, input bias current, output current, and propagation delay must meet or exceed the original specifications
• Output characteristics: CMOS push-pull output type required for direct functional replacement
• Compliance: RoHS3 compliance and REACH unaffected status maintained

The TLC3702IDR qualifies as a direct substitute based on these parameters. While it features a different package type (8-SOIC surface mount versus 8-CDIP through hole), the electrical specifications remain compatible within the allowed parameter ranges for this product category.

Parameter Comparison

Engineering Selection Recommendations

The TLC3702IDR is the manufacturer-recommended substitute for the TLC3702MJG. Both devices maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment.

Key considerations for selection:

Electrical compatibility: The TLC3702IDR maintains identical core electrical specifications (input offset voltage, input bias current, output current) and demonstrates superior supply voltage range (3V ~ 16V versus 4V ~ 16V). Quiescent current is slightly elevated at 65µA maximum compared to 40µA, and propagation delay increases marginally to 4.5µs from 4µs typical.

Temperature range: The substitute operates across -40°C to 85°C, which is narrower than the original -55°C to 125°C range. Applications requiring extended temperature operation below -40°C or above 85°C must evaluate alternative solutions.

Package transition: The shift from 8-CDIP through-hole to 8-SOIC surface-mount packaging requires PCB layout modification. This is a mechanical rather than electrical constraint and does not affect functional performance.

Product status: The TLC3702IDR carries Active product status with 37,200 units in stock, ensuring long-term availability compared to the Last Time Buy status of the original part.

Frequently Asked Questions (FAQ)

Q: Can the TLC3702IDR directly replace the TLC3702MJG without circuit modifications?

A: Electrical substitution is direct. The core comparator functionality, output type, and electrical specifications are compatible. However, the package change from 8-CDIP to 8-SOIC requires PCB redesign for mounting. No circuit topology changes are necessary.

Q: What is the significance of the supply voltage range difference (4V ~ 16V versus 3V ~ 16V)?

A: The TLC3702IDR supports operation at 3V, extending the lower supply limit by 1V. For applications operating at 4V or higher, both devices are equivalent. Applications requiring 3V operation must use the TLC3702IDR.

Q: Does the higher quiescent current (65µA versus 40µA) affect circuit design?

A: The 25µA increase in maximum quiescent current is within acceptable tolerance for most general-purpose comparator applications. Power consumption impact is negligible in typical circuits. Applications with strict power budgets should calculate the specific impact based on operating conditions.

Q: Is the narrower operating temperature range (-40°C ~ 85°C) a limitation?

A: The TLC3702IDR is suitable for standard industrial and commercial temperature ranges. Applications requiring operation below -40°C or above 85°C must identify alternative components. Verify your application's temperature requirements before selection.

Q: What mounting considerations apply when transitioning from through-hole to surface-mount?

A: The 8-CDIP package uses through-hole pins for PCB insertion, while the 8-SOIC package uses surface-mount leads. PCB layout, soldering process, and assembly equipment must be adapted accordingly. No electrical circuit changes are required.

Q: Are both devices RoHS3 compliant?

A: Yes. Both the TLC3702MJG and TLC3702IDR are ROHS3 compliant and REACH unaffected, maintaining regulatory compliance for EU and international markets.