TLC372MDRG4 Equivalent & Substitute Parts

Part Overview

The TLC372MDRG4 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 a linear integrated circuit with CMOS, MOS, open-drain, and TTL output capabilities. The TLC372MDRG4 is currently discontinued at DiGi Electronics, necessitating identification of equivalent substitute parts for ongoing design requirements and production needs. Equivalent alternatives maintain the same functional specifications and package footprint while offering active product status and continued availability.

Substiute Parts

TLC372MDRG4

Texas InstrumentsIn Stock: 1850TLC372MDRG4 Datasheet

Current PartRFQ

TLC372MDR

Texas InstrumentsIn Stock: 16027TLC372MDR Datasheet

Parametric EquivalentRFQ

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 TLC372MDRG4 are classified based on strict parametric equivalence within the following criteria:

Parametric Equivalence Criteria:

• Package type: 8-SOIC surface mount (0.154", 3.90mm Width)
• Number of comparator elements: 2
• Output configuration: CMOS, MOS, open-drain, TTL capable
• Supply voltage range: Minimum 4V ~ 16V single supply or ±2V ~ 8V dual supply
• Input offset voltage: Maximum 5mV @ 5V or better
• Input bias current: Maximum 5pA @ 5V or better
• Output current: Minimum 20mA typical
• Quiescent current: Maximum 400µA or better
• Operating temperature range: Minimum -55°C ~ 125°C or equivalent coverage
• RoHS3 compliance and MSL 1 rating

Substitute Categories:

1. Parametric Equivalent (Same Manufacturer, Different Packaging): TLC372MDR — Identical electrical specifications with Tape & Reel packaging instead of Cut Tape.

2. Manufacturer Recommended Alternatives: NCS3402DR2G (onsemi), TS372CDT (STMicroelectronics), TS372IDT (STMicroelectronics) — Meet core functional requirements with minor parameter variations within acceptable engineering tolerances.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TLC372MDR

The TLC372MDR is the direct parametric equivalent to the TLC372MDRG4, differing only in packaging format (Tape & Reel versus Cut Tape). This part maintains identical electrical specifications, supply voltage ranges, input/output characteristics, and operating temperature range. Both parts are manufactured by Texas Instruments within the LinCMOS™ series and carry ROHS3 compliance with MSL 1 rating. The TLC372MDR is currently active in production with higher inventory availability (15,936 units) compared to the discontinued TLC372MDRG4.

Secondary Substitutes: TS372CDT and TS372IDT

The TS372CDT and TS372IDT from STMicroelectronics are functionally equivalent differential comparators with identical output type configurations and package footprint. Both maintain the 8-SOIC form factor and support the same output drive capabilities (20mA typical). The TS372IDT offers the extended operating temperature range (-40°C ~ 125°C) matching the original part's lower temperature limit of -55°C, though the upper limit differs by 0°C. The TS372CDT operates within 0°C ~ 70°C, which may be limiting for applications requiring the full -55°C ~ 125°C range. Both parts are ROHS3 compliant with MSL 1 rating and active product status.

Alternative Substitute: NCS3402DR2G

The NCS3402DR2G from onsemi is a general-purpose comparator with open-drain output configuration. While this part shares the 8-SOIC package and dual-element architecture, it differs in output type (open-drain only versus multi-output capability) and exhibits lower typical output current (10mA versus 20mA). The NCS3402DR2G operates within -40°C ~ 125°C and features superior quiescent current performance (640nA maximum). This part is suitable for applications where open-drain output is acceptable and lower power consumption is beneficial. ROHS3 compliance and MSL 1 rating are maintained.

Frequently Asked Questions (FAQ)

Q: Can the TLC372MDR be used as a direct replacement for the TLC372MDRG4?

A: Yes. The TLC372MDR is electrically identical to the TLC372MDRG4. The only difference is packaging format: TLC372MDRG4 is supplied in Cut Tape (CT) & Digi-Reel® format, while TLC372MDR is supplied in Tape & Reel (TR) format. Both are 8-SOIC surface mount packages with identical pinout and specifications. Verify your assembly process can accommodate Tape & Reel packaging.

Q: What are the key differences between the TLC372MDRG4 and the TS372IDT?

A: Both are dual differential comparators in 8-SOIC packages with identical output types and 20mA typical output current. The TS372IDT has a slightly lower input offset voltage specification (10mV @ 5V versus 5mV @ 5V) and lower input bias current (1pA versus 5pA @ 5V). The TS372IDT operates within -40°C ~ 125°C, while the TLC372MDRG4 extends to -55°C. For applications within the -40°C ~ 125°C range, the TS372IDT is functionally equivalent.

Q: Why does the NCS3402DR2G have lower output current than the TLC372MDRG4?

A: The NCS3402DR2G is specified as a general-purpose comparator with open-drain output only, whereas the TLC372MDRG4 supports multiple output types (CMOS, MOS, open-drain, TTL). The 10mA typical output current of the NCS3402DR2G is sufficient for open-drain applications but may not meet requirements for CMOS or TTL output configurations. Verify your circuit design requirements before substitution.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (TLC372MDR, NCS3402DR2G, TS372CDT, TS372IDT) are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). All parts maintain the same environmental and regulatory compliance status as the original TLC372MDRG4.

Q: What is the operating temperature consideration when selecting a substitute?

A: The TLC372MDRG4 operates from -55°C ~ 125°C. The TLC372MDR maintains this range. The TS372IDT operates from -40°C ~ 125°C, which covers most industrial applications but does not extend to -55°C. The TS372CDT operates from 0°C ~ 70°C, which is the most restrictive range. The NCS3402DR2G operates from -40°C ~ 125°C. Select based on your application's minimum operating temperature requirement.

Q: Can I use the TS372CDT in place of the TLC372MDRG4?

A: The TS372CDT is functionally equivalent for comparator operation within its operating temperature range of 0°C ~ 70°C. If your application requires operation below 0°C or above 70°C, the TS372CDT is not suitable. For applications within 0°C ~ 70°C, the TS372CDT provides equivalent performance with identical output type and 20mA typical output current.

Q: What packaging formats are available for these substitute parts?

A: All substitute parts are supplied in 8-SOIC surface mount packages. The TLC372MDRG4 and TS372IDT are available in Cut Tape (CT) & Digi-Reel® format. The TLC372MDR, NCS3402DR2G, and TS372CDT are available in Tape & Reel (TR) format. Confirm your assembly process compatibility with the available packaging format before ordering.