TLC393CPSR Equivalent & Substitute Parts

Part Overview

The TLC393CPSR is a dual general-purpose comparator from Texas Instruments' LinCMOS™ series, featuring MOS open-drain outputs in an 8-SO surface mount package. This device operates across a 3V to 16V supply range and is designed for precision voltage comparison applications requiring low input offset voltage and minimal quiescent current.

The TLC393CPSR carries a Last Time Buy product status, indicating that Texas Instruments has discontinued active production. This status necessitates identifying functionally equivalent alternatives to ensure design continuity and supply chain reliability for ongoing production requirements.

Substiute Parts

TLC393CPSR

Texas InstrumentsIn Stock: 6785TLC393CPSR Datasheet

Current PartRFQ

TLC393CDR

Texas InstrumentsIn Stock: 7609TLC393CDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC393CPSR is determined by electrical parameter equivalence across the following criteria:

• Supply voltage range: 3V ~ 16V
• Input offset voltage: 5mV maximum at 10V
• Input bias current: 5pA maximum at 5V
• Output configuration: MOS open-drain topology
• Comparator count: Dual (2 elements)
• Common-mode rejection ratio: 84dB minimum
• Propagation delay: 4.5µs maximum
• Operating temperature range: 0°C ~ 70°C
• Surface mount package configuration

The primary distinction between the main part and substitute lies in packaging format and product lifecycle status. Both devices share identical electrical specifications and functional performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The TLC393CDR serves as the direct functional equivalent to the TLC393CPSR for new designs and ongoing production transitions. Both devices maintain identical electrical performance specifications and are manufactured by Texas Instruments under the LinCMOS™ series designation.

The TLC393CDR holds Active product status, ensuring long-term availability and supply chain continuity. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications.

Package geometry differences exist between the two variants. The TLC393CPSR utilizes an 8-SO package with 5.30mm width, while the TLC393CDR employs an 8-SOIC package with 3.90mm width. Both packages are surface mount configurations with identical pin counts and electrical connectivity. PCB layout modifications may be required to accommodate the dimensional differences.

Frequently Asked Questions (FAQ)

Q: Are the TLC393CPSR and TLC393CDR electrically interchangeable?

A: Yes. Both devices share identical electrical specifications including supply voltage range, input offset voltage, input bias current, output current capability, quiescent current, CMRR, and propagation delay. Functional performance is equivalent across all specified operating conditions.

Q: What is the primary difference between these two parts?

A: The primary differences are product lifecycle status and package dimensions. The TLC393CPSR is Last Time Buy, while the TLC393CDR is Active. The TLC393CPSR uses an 8-SO package (5.30mm width), and the TLC393CDR uses an 8-SOIC package (3.90mm width). Both are 8-pin surface mount packages with identical pin configurations.

Q: Can I use the TLC393CDR as a direct replacement on existing PCBs designed for the TLC393CPSR?

A: Electrical substitution is direct. However, physical PCB layout compatibility depends on package footprint accommodation. The 8-SO and 8-SOIC packages have different body dimensions. Verify that your PCB footprint can accommodate the 3.90mm width of the 8-SOIC package before implementing the substitution.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the TLC393CPSR and TLC393CDR are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: Which part should I specify for new designs?

A: The TLC393CDR is recommended for new designs due to its Active product status, ensuring availability throughout the design lifecycle and production phases.