L293NG4 Equivalent & Substitute Parts

Part Overview

The L293NG4 is a bipolar motor driver IC manufactured by Texas Instruments, designed for brushed DC and bipolar stepper motor applications. It integrates control and power stages in a 16-DIP package with a supply voltage range of 4.5V to 36V and 1A output current capability. The L293NG4 is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements.

Substiute Parts

L293NG4

Texas InstrumentsIn Stock: 1002L293NG4 Datasheet

Current PartRFQ

L293DNE

Texas InstrumentsIn Stock: 10253L293DNE Datasheet

DirectRFQ

L293NE

Texas InstrumentsIn Stock: 1376L293NE Datasheet

Parametric EquivalentRFQ

L293B

STMicroelectronicsIn Stock: 16630L293B Datasheet

DirectRFQ

L293D

STMicroelectronicsIn Stock: 17613L293D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L293NG4 is determined by the following critical parameters:

• Motor driver function with fully integrated control and power stage
• Half bridge output configuration (4 outputs)
• Parallel interface for control signals
• Voltage supply range: 4.5V to 36V
• Voltage load range: 4.5V to 36V
• Package type: 16-DIP (0.300", 7.62mm)
• Through-hole mounting compatibility
• ROHS3 compliance and REACH unaffected status

Substitute parts are grouped into two categories:

Direct Substitutes (Identical Output Current): Parts with 1A output current matching the L293NG4 specification.

Parametric Equivalents (Reduced Output Current): Parts with 600mA output current, suitable for applications with lower current requirements within the same voltage and functional parameters.

Parameter Comparison

Engineering Selection Recommendations

L293NE (Texas Instruments, Active): Direct substitute with identical 1A output current and active product status. Recommended for applications requiring full compatibility with L293NG4 specifications and continued manufacturer support.

L293B (STMicroelectronics, Active): Direct substitute with 1A output current and extended operating temperature range (-40°C to 150°C). Suitable for applications requiring broader temperature performance while maintaining identical electrical specifications.

L293DNE (Texas Instruments, Active): Parametric equivalent with reduced 600mA output current. Applicable for motor applications with lower current demands within the same voltage and functional framework.

L293D (STMicroelectronics, Active): Parametric equivalent with 600mA output current and extended operating temperature range (-40°C to 150°C). Suitable for lower-current applications requiring enhanced thermal performance.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original L293NG4.

Frequently Asked Questions (FAQ)

Q: Can L293DNE replace L293NG4 in all applications?

A: L293DNE is a direct substitute from Texas Instruments with active product status. The primary difference is reduced output current (600mA versus 1A). Substitution is valid only if the motor application current requirement does not exceed 600mA.

Q: What is the difference between L293NE and L293B?

A: Both provide 1A output current and are direct substitutes for L293NG4. L293NE is manufactured by Texas Instruments with operating temperature 0°C to 70°C. L293B is manufactured by STMicroelectronics with extended operating temperature range of -40°C to 150°C. Selection depends on thermal environment requirements and manufacturer preference.

Q: Are all substitute parts pin-compatible with L293NG4?

A: All substitute parts use the 16-DIP (0.300", 7.62mm) package with through-hole mounting. Pin compatibility is maintained across all listed substitutes for direct PCB replacement.

Q: Which substitute offers the best long-term availability?

A: L293B and L293D from STMicroelectronics show the highest inventory levels (16,606 and 17,508 units respectively) with active product status, indicating strong ongoing availability.

Q: Can L293D be used instead of L293B?

A: L293D has reduced output current (600mA versus 1A) and is not a direct substitute for L293B. Selection between these parts depends on motor current requirements and thermal operating conditions.