L293NEG4

Overview

The L293NEG4 is a quadruple half-H driver manufactured by Texas Instruments, designed for motor and motion control applications. It operates within a supply voltage range of 4.5 V to 36 V and delivers up to 1 A per output channel. The device features an integrated clamp diode network for inductive load protection and includes logic that accepts standard 5-V TTL voltage levels. It is housed in a 16-pin PDIP package and supports operation across a temperature range of 0°C to 70°C.

Feature Summary

• Integrates four independent half-H bridge drivers for bidirectional control
• Includes internal clamp diodes to protect against inductive voltage spikes
• Compatible with standard 5-V TTL logic input levels
• Provides high-current drive capability suitable for various loads

Applications

• DC motor speed and direction control
• Solenoid driver circuits
• Relay driver interfaces
• Lighting control systems

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS standards during procurement. Confirm the 16-pin PDIP package matches your PCB footprint requirements. Ensure the operating temperature range meets your environmental specifications. Cross-reference the datasheet revision to confirm pinout compatibility with legacy designs.

Selection Notes

Select this component when a quad half-bridge configuration is required for driving multiple DC motors or solenoids independently. It is suitable for applications needing moderate current handling without external heat sinks under normal conditions. Consider thermal dissipation capabilities if continuous high-current operation is expected. Verify logic level compatibility with your microcontroller or control interface.

Part Context

This part belongs to the L293 family of quadruple half-H drivers from Texas Instruments. It serves as a robust solution for interfacing low-power logic controllers with higher-power inductive loads. The device simplifies circuit design by integrating necessary protection components directly on-chip.

Replacement Considerations

L293N is a direct functional equivalent with identical pinout and specifications. LM293 is a related comparator device but has different functionality and pinout; it is not a substitute. DRV8844 offers similar half-bridge functionality but in a smaller package with different pin assignments.