TLC372MDG4 Equivalent & Substitute Parts

Part Overview

The TLC372MDG4 is a dual differential comparator IC manufactured by Texas Instruments in the LinCMOS™ series, housed in an 8-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The TLC372MDG4 provides CMOS, MOS, open-drain, and TTL output configurations suitable for precision voltage comparison applications across industrial and commercial temperature ranges.

Substiute Parts

TLC372MDG4

Texas InstrumentsIn Stock: 1116TLC372MDG4 Datasheet

Current PartRFQ

TLC372MDR

Texas InstrumentsIn Stock: 16027TLC372MDR Datasheet

MFR RecommendedRFQ

TLC372MD

Texas InstrumentsIn Stock: 1578TLC372MD Datasheet

MFR RecommendedRFQ

NCS3402DR2G

onsemiIn Stock: 9169NCS3402DR2G Datasheet

MFR RecommendedRFQ

TS372CDT

STMicroelectronicsIn Stock: 10500TS372CDT Datasheet

MFR RecommendedRFQ

TS372IDT

STMicroelectronicsIn Stock: 19197TS372IDT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLC372MDG4 are qualified based on the following critical parameters:

Primary Substitution Criteria:

• Package type: 8-SOIC surface mount form factor
• Functional classification: Dual differential comparator
• Output configuration: CMOS, MOS, open-drain, or TTL compatible
• Supply voltage range: Minimum 4V single supply or ±2V dual supply capability
• Input offset voltage: Maximum 5mV specification
• Input bias current: Maximum 5pA specification
• Output current: Minimum 20mA typical
• Quiescent current: Maximum 400µA
• Operating temperature range: Minimum -55°C to 125°C coverage
• Compliance: ROHS3 and REACH requirements

Substitutes are grouped into two categories: direct Texas Instruments equivalents (TLC372MDR, TLC372MD) and cross-manufacturer alternatives (NCS3402DR2G from onsemi, TS372CDT and TS372IDT from STMicroelectronics). All qualified substitutes maintain electrical compatibility within the specified parameter envelope and identical package geometry.

Parameter Comparison

Engineering Selection Recommendations

Tier 1 - Direct Equivalents (Recommended Primary Substitutes):

TLC372MDR and TLC372MD are direct Texas Instruments equivalents with identical electrical specifications to the TLC372MDG4. TLC372MDR is the preferred choice due to active product status and higher inventory availability (15,936 units). TLC372MD remains available as a Last Time Buy option with 1,486 units in stock. Both maintain full compatibility with the original design without circuit modifications.

Tier 2 - Cross-Manufacturer Alternatives:

TS372IDT from STMicroelectronics provides the broadest temperature range coverage (-40°C ~ 125°C) among substitute options and maintains active product status with substantial inventory (19,135 units). This part is suitable for applications requiring extended low-temperature operation below 0°C.

TS372CDT from STMicroelectronics is available in active status with 10,400 units in stock but operates only within the 0°C ~ 70°C temperature range, limiting its use to commercial-grade applications.

NCS3402DR2G from onsemi offers the lowest quiescent current (640nA) and superior CMRR/PSRR specifications (88dB CMRR, 105dB PSRR) but features open-drain output only and reduced output current (10mA typical). This part is suitable for low-power applications where the output configuration is compatible with system requirements.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the original component.

Frequently Asked Questions (FAQ)

Q: Can TLC372MDR directly replace TLC372MDG4 without circuit modifications?

A: Yes. TLC372MDR maintains identical electrical specifications including supply voltage range (4V ~ 16V, ±2V ~ 8V), input offset voltage (5mV @ 5V), input bias current (5pA @ 5V), output current (20mA typical), quiescent current (400µA maximum), and operating temperature range (-55°C ~ 125°C). The 8-SOIC package geometry is identical. No circuit modifications are required.

Q: What is the difference between TLC372MDR and TLC372MD?

A: Both parts are Texas Instruments equivalents with identical electrical specifications. The primary difference is product status: TLC372MDR is active with 15,936 units available, while TLC372MD is Last Time Buy status with 1,486 units available. TLC372MDR is the recommended choice for new designs and ongoing production.

Q: Why does NCS3402DR2G have lower quiescent current than the TLC372 series?

A: NCS3402DR2G is classified as a general-purpose comparator with different internal architecture optimized for low-power operation. While it offers 640nA quiescent current versus 400µA for the TLC372 series, it features open-drain output only (not CMOS/MOS/TTL compatible) and reduced output current (10mA typical versus 20mA). Selection depends on specific application requirements for output configuration and drive capability.

Q: Are the STMicroelectronics TS372 parts suitable for all temperature ranges?

A: TS372CDT operates within 0°C ~ 70°C, suitable only for commercial-grade applications. TS372IDT operates within -40°C ~ 125°C, covering industrial temperature ranges but not the full -55°C ~ 125°C range of the original TLC372MDG4. For applications requiring -55°C operation, TLC372MDR or TLC372MD are required.

Q: Do all substitute parts meet the same compliance standards as TLC372MDG4?

A: Yes. All qualified substitutes are ROHS3 compliant and REACH unaffected, matching the regulatory compliance of the original component. All parts carry MSL 1 (Unlimited) moisture sensitivity classification.

Q: What packaging options are available for these substitutes?

A: All substitutes are supplied in 8-SOIC surface mount packages with identical 0.154" (3.90mm) width. Packaging formats vary: TLC372MDR is supplied in Tape & Reel (TR), TLC372MD in Tube, NCS3402DR2G in Tape & Reel (TR), TS372CDT in Tape & Reel (TR), and TS372IDT in Cut Tape (CT) & Digi-Reel®. Select based on production volume and handling requirements.