L293NEG4 Equivalent & Substitute Parts

Part Overview

The L293NEG4 is a bipolar motor driver IC manufactured by Texas Instruments, designed for controlling brushed DC and bipolar stepper motors across a wide voltage range of 4.5V to 36V. This component integrates both control and power stages in a single 16-DIP package, providing four half-bridge output configurations with 1A output current capability.

The L293NEG4 is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and production continuity. Alternative models from both Texas Instruments and STMicroelectronics maintain functional compatibility while offering different availability, packaging, and thermal specifications.

Substiute Parts

L293NEG4

Texas InstrumentsIn Stock: 1285L293NEG4 Datasheet

Current PartRFQ

L293NE

Texas InstrumentsIn Stock: 1376L293NE Datasheet

MFR RecommendedRFQ

L293DNE

Texas InstrumentsIn Stock: 10253L293DNE Datasheet

Parametric EquivalentRFQ

L293B

STMicroelectronicsIn Stock: 16630L293B Datasheet

DirectRFQ

L293D

STMicroelectronicsIn Stock: 17613L293D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the L293NEG4 is determined by the following critical parameters:

• Motor type support (Bipolar stepper and brushed DC capability)
• Output configuration (Half Bridge with 4 channels)
• Parallel interface architecture
• Supply and load voltage range (4.5V ~ 36V)
• Package form factor (16-DIP, 0.300" pitch)
• Through-hole mounting compatibility

Substitute parts are grouped into three categories based on their relationship to the original specification:

MFR Recommended: L293NE maintains identical electrical specifications and active product status from the original manufacturer.

Parametric Equivalent: L293DNE provides functional equivalence with reduced output current (600mA vs 1A) but maintains all other critical parameters.

Direct Alternatives: L293B and L293D from STMicroelectronics offer full functional compatibility with extended operating temperature ranges and active availability.

Parameter Comparison

Engineering Selection Recommendations

L293NE (MFR Recommended): This Texas Instruments part provides direct functional equivalence with identical electrical specifications and active product status. Selection is appropriate for applications requiring exact parameter matching and continued manufacturer support.

L293DNE (Parametric Equivalent): This part maintains all critical parameters except output current, which is reduced to 600mA. Selection is suitable for applications where motor load current does not exceed 600mA per channel. Higher inventory availability (10,200 units) supports production continuity.

L293B (STMicroelectronics Alternative): This part maintains 1A output current and extends operating temperature range to -40°C ~ 150°C (TJ). Selection is appropriate for applications requiring enhanced thermal performance or extended temperature operation. Bulk packaging is available.

L293D (STMicroelectronics Alternative): This part provides 600mA output current with extended operating temperature range (-40°C ~ 150°C TJ) and PowerDIP package variant. Selection is suitable for temperature-critical applications where current requirements do not exceed 600mA per channel.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility with the original specification.

Frequently Asked Questions (FAQ)

Q: Can L293DNE replace L293NEG4 in all applications?

A: L293DNE is functionally compatible for applications where output current per channel does not exceed 600mA. The original L293NEG4 supports 1A per channel. Verify motor load current specifications before substitution.

Q: What is the difference between L293B and L293D?

A: Both are STMicroelectronics alternatives. L293B provides 1A output current with standard 16-DIP package. L293D provides 600mA output current with 16-PowerDIP package variant. Operating temperature range is identical (-40°C ~ 150°C TJ) for both.

Q: Are all substitute parts pin-compatible with L293NEG4?

A: Yes. All substitute parts use 16-DIP package with 0.300" (7.62mm) pitch and maintain identical pinout for parallel interface motor driver applications.

Q: Which substitute offers the best availability?

A: L293B from STMicroelectronics currently has the highest inventory (16,606 units), followed by L293D (17,508 units). L293DNE has 10,200 units available. L293NE has 1,352 units available.

Q: Can I use L293B or L293D in low-temperature applications?

A: Yes. STMicroelectronics parts (L293B and L293D) support operating temperatures down to -40°C, compared to 0°C minimum for Texas Instruments parts. This extended range supports low-temperature environments.

Q: What packaging options are available for substitutes?

A: L293NE is supplied in Tube packaging. L293DNE is supplied in Tube packaging. L293B is supplied in Bulk packaging. L293D is supplied in Tube packaging. All maintain through-hole mounting compatibility.