L293DWP Equivalent & Substitute Parts

Part Overview

The L293DWP is a bipolar motor driver IC manufactured by Texas Instruments, designed for controlling brushed DC motors and bipolar stepper motors. It integrates both control and power stages in a single package, operating across a supply voltage range of 4.5V to 36V with an output current capability of 600mA per channel. The device is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

L293DWP

Texas InstrumentsIn Stock: 1100L293DWP Datasheet

Current PartRFQ

L293DNE

Texas InstrumentsIn Stock: 10253L293DNE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L293DWP is determined by strict equivalence across the following critical parameters:

• Base product number (L293 series)
• Motor control capability (bipolar stepper and brushed DC motor support)
• Output configuration (four half-bridge outputs)
• Parallel control interface
• Electrical specifications (600mA output current, 4.5V–36V supply and load voltage range)
• Operating temperature range (0°C–70°C)
• Regulatory compliance (ROHS3, REACH Unaffected)

The L293DNE qualifies as a direct functional equivalent based on these parameters. The primary difference is packaging format: the L293DWP uses 28-SOIC surface-mount packaging, while the L293DNE uses 16-DIP through-hole packaging. Both variants share identical electrical performance and control characteristics.

Parameter Comparison

Engineering Selection Recommendations

The L293DNE is a direct electrical and functional equivalent to the L293DWP. Both devices are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The L293DNE holds active product status with Texas Instruments, ensuring continued availability and support, whereas the L293DWP is obsolete.

Selection between these variants depends on assembly requirements:

• L293DWP (28-SOIC): Surface-mount assembly, suitable for automated pick-and-place manufacturing and compact PCB layouts.
• L293DNE (16-DIP): Through-hole assembly, suitable for breadboard prototyping, manual assembly, and legacy board designs.

PCB layout modifications are required when transitioning between these packages due to different pin counts and physical dimensions. Pin-to-pin functional mapping must be verified against the respective device datasheets to ensure correct signal routing.

Frequently Asked Questions (FAQ)

Q: Can the L293DNE directly replace the L293DWP without circuit modifications?

A: Electrical functionality is identical; however, physical package differences require PCB layout redesign. The L293DWP uses 28-SOIC packaging with 28 pins, while the L293DNE uses 16-DIP packaging with 16 pins. Pin assignments differ between packages, necessitating schematic and layout verification before implementation.

Q: What is the primary reason for substituting the L293DWP?

A: The L293DWP is classified as obsolete. The L293DNE provides equivalent electrical performance with active product status, ensuring long-term availability and manufacturing support.

Q: Are there any compliance differences between the L293DWP and L293DNE?

A: Both devices are ROHS3 compliant and REACH unaffected. Compliance status is identical across both variants.

Q: What motor types are supported by the L293DNE?

A: The L293DNE supports bipolar stepper motors and brushed DC motors with the same electrical specifications as the L293DWP: 600mA output current per channel, 4.5V–36V supply and load voltage range, and 0°C–70°C operating temperature.

Q: Is the L293DNE suitable for new designs?

A: Yes. The L293DNE holds active product status with Texas Instruments and meets current regulatory requirements. It is appropriate for both new designs and legacy system support.