TLC393CPW Equivalent & Substitute Parts

Part Overview

The TLC393CPW is a dual general-purpose comparator IC manufactured by Texas Instruments, featuring MOS open-drain output architecture in an 8-TSSOP surface mount package. This device operates across a 3V to 16V supply voltage range and is designed for precision voltage comparison applications requiring low input offset and minimal quiescent current.

The TLC393CPW is classified as obsolete. Locating active production alternatives is necessary for new designs, ongoing production support, and long-term supply chain reliability. The substitute part TLC393CPWR provides functional equivalence while maintaining active product status.

Substiute Parts

TLC393CPW

Texas InstrumentsIn Stock: 2735TLC393CPW Datasheet

Current PartRFQ

TLC393CPWR

Texas InstrumentsIn Stock: 51742TLC393CPWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The TLC393CPWR qualifies as a direct substitute for the TLC393CPW based on the following substitution criteria:

Electrical Parameter Equivalence:

• Identical supply voltage range (3V ~ 16V)
• Identical input offset voltage specification (5mV @ 10V)
• Identical input bias current (5pA @ 5V)
• Identical output current (20mA typical)
• Identical CMRR performance (84dB)
• Identical propagation delay (4.5µs maximum)
• Identical operating temperature range (0°C ~ 70°C)

Mechanical & Packaging Equivalence:

• Identical package type: 8-TSSOP
• Identical package dimensions (0.173", 4.40mm Width)
• Identical mounting type: Surface Mount
• Identical pin configuration and functionality

Compliance & Regulatory Equivalence:

• Both ROHS3 Compliant
• Both REACH Unaffected
• Both classified under ECCN EAR99
• Both carry identical HTSUS code (8542.39.0001)
• Both MSL 1 (Unlimited moisture sensitivity level)

The primary difference is packaging format: TLC393CPW is supplied in Tube packaging, while TLC393CPWR is supplied in Tape & Reel (TR) format. Additionally, TLC393CPWR maintains active product status with significantly higher inventory availability (51,675 pcs vs. 2,636 pcs).

Parameter Comparison

Engineering Selection Recommendations

The TLC393CPWR is the appropriate selection for new designs and ongoing production requirements. This recommendation is based on the following engineering factors:

Product Status & Supply Chain: The TLC393CPW is classified as obsolete, indicating discontinued manufacturing and declining inventory availability. The TLC393CPWR maintains active product status with substantially higher stock levels (51,675 pcs), ensuring reliable procurement for current and future production runs.

Electrical Performance: All critical electrical parameters are identical between the two devices. The TLC393CPWR exhibits a marginal improvement in quiescent current specification (40µA maximum versus 50µA maximum), which provides a minor advantage in low-power applications without introducing any compatibility concerns.

Regulatory & Compliance Alignment: Both devices carry identical compliance certifications: ROHS3 Compliant, REACH Unaffected, and MSL 1 (Unlimited). No additional qualification or testing is required from a regulatory perspective.

Packaging Considerations: The primary difference is packaging format. TLC393CPWR is supplied in Tape & Reel format, which is standard for high-volume manufacturing and automated assembly processes. Tube packaging (TLC393CPW) is typically reserved for low-volume or manual assembly scenarios. For production environments utilizing standard pick-and-place equipment, Tape & Reel format is the preferred specification.

Frequently Asked Questions (FAQ)

Q: Can TLC393CPWR be used as a direct replacement for TLC393CPW in existing designs?

A: Yes. All electrical specifications, pin configurations, and functional parameters are identical. The devices are pin-for-pin compatible and require no circuit modifications. The only difference is packaging format (Tape & Reel versus Tube), which does not affect electrical performance or PCB assembly compatibility.

Q: What is the significance of the quiescent current difference (50µA vs. 40µA)?

A: The TLC393CPWR exhibits a lower maximum quiescent current specification (40µA) compared to the TLC393CPW (50µA). This represents an improvement in power efficiency and is not a limitation. Designs specified for the TLC393CPW will operate within acceptable parameters using the TLC393CPWR.

Q: Why is the TLC393CPW listed as obsolete?

A: Obsolete status indicates that Texas Instruments has discontinued active manufacturing of this part number. The TLC393CPWR represents the current active production equivalent. For long-term supply chain stability and new design implementations, the TLC393CPWR should be specified.

Q: Are there any compatibility issues with automated assembly equipment?

A: No. Both devices use identical 8-TSSOP surface mount packages with standard pin spacing (0.173", 4.40mm Width). The primary difference is that TLC393CPWR is supplied in Tape & Reel format, which is optimized for automated pick-and-place assembly. TLC393CPW in Tube format requires manual handling or specialized feeder equipment.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by equivalence in the following parameters: supply voltage range (3V ~ 16V), input offset voltage (5mV @ 10V), input bias current (5pA @ 5V), output current (20mA), CMRR (84dB), propagation delay (4.5µs), operating temperature range (0°C ~ 70°C), and package type (8-TSSOP). All of these parameters are identical between the two devices.

Q: Is additional qualification testing required when switching from TLC393CPW to TLC393CPWR?

A: No additional qualification is required from an electrical or functional perspective, as all specifications are identical. However, standard engineering practice recommends functional verification in your specific application circuit to confirm performance within your design margins.