TLV1391CDBVRE4 Equivalent & Substitute Parts

Part Overview

The TLV1391CDBVRE4 is a single differential comparator IC in SOT-23-5 surface mount packaging, manufactured by Texas Instruments. This linear comparator features open-collector output configuration and operates across a 2V to 7V supply voltage range. The device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity.

Substiute Parts

TLV1391CDBVRE4

Texas InstrumentsIn Stock: 997TLV1391CDBVRE4 Datasheet

Current PartRFQ

TLV1391IDBVR

Texas InstrumentsIn Stock: 3223TLV1391IDBVR Datasheet

DirectRFQ

TLV1391CDBVR

Texas InstrumentsIn Stock: 2497TLV1391CDBVR Datasheet

Parametric EquivalentRFQ

TLV1391CDBVT

Texas InstrumentsIn Stock: 1356TLV1391CDBVT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLV1391CDBVRE4 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Requirements:

• Differential comparator topology with single element
• Open-collector output configuration
• Supply voltage range: 2V ~ 7V
• Input offset voltage: 5mV @ 5V maximum
• Input bias current: 0.25µA @ 5V maximum
• Output current: 20mA typical
• Quiescent current: 175µA maximum

Mechanical & Packaging Requirements:

• Package type: SC-74A, SOT-753 (SOT-23-5)
• Surface mount mounting type
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Compliance Requirements:

• REACH Unaffected status
• ECCN: EAR99 classification

Substitute parts must maintain identical electrical specifications and physical packaging to ensure direct replacement without circuit redesign or PCB modification.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TLV1391IDBVR

The TLV1391IDBVR is the recommended direct substitute for the obsolete TLV1391CDBVRE4. This part maintains identical electrical specifications and packaging while offering an extended operating temperature range of -40°C to 85°C. The device carries active product status from Texas Instruments, ensuring long-term availability and supply chain continuity. Inventory availability is substantial at 3200 pieces. This part is suitable for applications where the extended temperature range does not conflict with design requirements.

Secondary Substitutes: TLV1391CDBVR and TLV1391CDBVT

Both TLV1391CDBVR and TLV1391CDBVT are parametric equivalents with identical electrical and mechanical specifications to the main part. The TLV1391CDBVR maintains active product status with 2394 pieces in inventory. The TLV1391CDBVT is classified as obsolete but remains available with 1344 pieces in stock. Both parts operate within the same 0°C to 70°C temperature range as the original device. Selection between these options depends on procurement timeline and inventory requirements.

Compliance Considerations

All substitute parts maintain ROHS3 compliance, MSL rating of 1 (Unlimited), and REACH Unaffected status, ensuring regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can TLV1391IDBVR replace TLV1391CDBVRE4 in all applications?

A: The TLV1391IDBVR is electrically and mechanically equivalent to the TLV1391CDBVRE4. The primary difference is the extended operating temperature range (-40°C to 85°C versus 0°C to 70°C). If your application operates within the 0°C to 70°C range, direct substitution is valid. For applications requiring operation below 0°C or above 70°C, the extended range of the TLV1391IDBVR provides additional margin.

Q: What is the difference between "Direct Manufacturer Part Number" and "Parametric Equivalent"?

A: Direct manufacturer substitutes share the same base product number and are functionally interchangeable with identical electrical performance. Parametric equivalents also match all critical electrical specifications and packaging but may have different product status or availability. All listed substitutes meet the electrical and mechanical requirements for direct replacement.

Q: Are all substitute parts in the same SOT-23-5 package?

A: Yes. All substitute parts use the SC-74A, SOT-753 package designation, which corresponds to SOT-23-5 surface mount packaging. No PCB layout modifications are required for substitution.

Q: Which substitute part should I choose for new designs?

A: For new designs, the TLV1391IDBVR is the optimal choice due to its active product status and extended operating temperature range. This ensures maximum design flexibility and long-term supply availability.

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

A: Yes. All substitute parts are ROHS3 compliant, carry MSL rating 1 (Unlimited), and maintain REACH Unaffected status, matching the compliance profile of the original TLV1391CDBVRE4.