L293NG4

Overview

The L293NG4 is a quadruple half-H driver integrated circuit manufactured by Texas Instruments, belonging to the L293 series. It features a 16-pin PDIP package designed for through-hole mounting. The device supports a maximum supply voltage of 36V and operates within a temperature range of 0°C to 70°C. It provides four independent half-bridge drivers capable of delivering up to 1A per channel, with a peak output current capability of 2A. The logic section accepts standard TTL or CMOS inputs, allowing direct interfacing with microcontrollers for controlling brushed DC motors and other inductive loads.

Feature Summary

• Integrates four independent half-bridge driver channels for versatile motor control applications
• Includes built-in clamp diodes to protect against inductive voltage spikes from external loads
• Features enable inputs that allow individual channel control to manage power consumption and operation states

Applications

• Brushed DC motor speed and direction control
• Solenoid and relay driving circuits
• Industrial automation control systems

Procurement Notes

Verify the component authenticity by checking the manufacturer marking and date code against official Texas Instruments documentation. Confirm the package type matches the required PCB footprint and ensure the operating temperature range meets the specific environmental requirements of the target application before finalizing procurement.

Selection Notes

Select this component when a robust, through-hole solution is required for driving multiple low-to-medium power inductive loads. It is suitable for designs needing isolated control signals and high voltage tolerance. Consider thermal management requirements as heat dissipation depends on the number of active channels and load current levels during continuous operation.

Part Context

This part is part of the widely used L293 family of motor drivers, known for their reliability in industrial and consumer electronics. The 'G4' suffix typically indicates compliance with specific manufacturing standards or lead-free processing requirements defined by Texas Instruments. It serves as a legacy but functional option for designs not requiring surface-mount technology.

Replacement Considerations

• L293N
• L293NE
• SN754410

FAQ

Does the L293NG4 include internal protection diodes?

Yes, the device includes built-in clamp diodes across each output to handle inductive voltage spikes generated by connected loads such as motors or solenoids.

What is the maximum continuous current per channel?

The maximum continuous output current per channel is specified as 1A, with a peak non-repetitive current capability of 2A.