TLC393CP Equivalent & Substitute Parts

Part Overview

The TLC393CP is a dual general-purpose comparator IC manufactured by Texas Instruments, featuring MOS open-drain output architecture. This device operates across a wide supply voltage range of 3V to 16V and is housed in an 8-pin DIP package for through-hole mounting applications. The TLC393CP is designated as Last Time Buy, indicating discontinued production status. Identifying qualified substitute parts is essential for design continuity, long-term sourcing reliability, and production planning when through-hole or surface-mount alternatives are required.

Substiute Parts

TLC393CP

Texas InstrumentsIn Stock: 2642TLC393CP Datasheet

Current PartRFQ

TLC393CDR

Texas InstrumentsIn Stock: 7609TLC393CDR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLC393CP is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Dual comparator configuration (2 elements)
• MOS open-drain output architecture
• Supply voltage range: 3V ~ 16V
• Input offset voltage: 5mV @ 10V maximum
• Input bias current: 5pA @ 5V maximum
• Output current: 20mA typical
• Quiescent current: 50µA maximum
• CMRR: 84dB typical
• Propagation delay: 4.5µs maximum
• Operating temperature range: 0°C ~ 70°C

Mechanical Equivalence Criteria:

• Package type (DIP or SOIC variants)
• Mounting technology (through-hole or surface-mount)
• Pin count and pinout compatibility
• Base product number: TLC393

The TLC393CDR qualifies as a direct substitute based on identical electrical specifications and LinCMOS™ series membership, with the primary difference being package format and mounting technology.

Parameter Comparison

Engineering Selection Recommendations

TLC393CDR Selection Rationale:

The TLC393CDR is the qualified substitute for the TLC393CP based on the following engineering factors:

1. Electrical Equivalence: All electrical parameters are identical, including supply voltage range, input offset voltage, bias current, output current, CMRR, and propagation delay. This ensures functional compatibility in circuit designs.

2. Product Status: The TLC393CDR maintains Active product status with Texas Instruments, ensuring long-term availability and supply chain continuity. The TLC393CP is Last Time Buy, making the TLC393CDR the recommended path for ongoing production.

3. Compliance Certification: Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for equivalent component selection.

4. Package Consideration: The primary distinction is packaging format. The TLC393CP uses 8-DIP through-hole mounting, while the TLC393CDR uses 8-SOIC surface-mount technology. PCB layout and assembly process compatibility must be evaluated during design transition.

5. Inventory Availability: The TLC393CDR demonstrates higher inventory levels (7547 Pcs) compared to the TLC393CP (2570 Pcs), supporting supply reliability for new designs and production ramp.

Frequently Asked Questions (FAQ)

Q: Can the TLC393CDR directly replace the TLC393CP in existing designs?

A: Electrical substitution is complete. However, physical replacement requires PCB redesign due to package format differences. The TLC393CP uses through-hole DIP mounting, while the TLC393CDR uses surface-mount SOIC technology. Pinout is identical, but board layout and assembly processes differ.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is determined by matching: dual comparator configuration, MOS open-drain output, 3V–16V supply range, 5mV input offset, 5pA bias current, 20mA output current, 50µA quiescent current, 84dB CMRR, 4.5µs propagation delay, and 0°C–70°C operating temperature.

Q: Are there any compliance differences between the TLC393CP and TLC393CDR?

A: No. Both parts are ROHS3 compliant and REACH Unaffected. Regulatory compliance is equivalent.

Q: Why is the TLC393CDR recommended over the TLC393CP?

A: The TLC393CDR is Active product status with higher inventory availability, ensuring long-term sourcing reliability. The TLC393CP is Last Time Buy, indicating production discontinuation.

Q: What is the moisture sensitivity level difference?

A: The TLC393CP has MSL Not Applicable (through-hole package). The TLC393CDR has MSL 1 (Unlimited), indicating minimal moisture sensitivity for surface-mount applications.

Q: Can I use the TLC393CDR in a through-hole PCB design?

A: No. The TLC393CDR is surface-mount only (8-SOIC). Through-hole designs require the TLC393CP or equivalent DIP-packaged comparator. PCB redesign is necessary for package conversion.