Texas Instruments SN754410NEE4

Overview

SN754410NEE4 from Texas Instruments is a quadruple high-current half-H driver IC designed for bidirectional control of inductive loads, delivering up to 1 A per channel at 4.5 V–36 V output supply (VCC2), with separate 5-V logic supply (VCC1), TTL/CMOS-compatible inputs, and thermal shutdown protection. It enables reversible DC motor and bipolar stepper motor drive via two independent full-H bridge configurations.

For engineers reviewing the SN754410NEE4 datasheet, SN754410NEE4 pinout, SN754410NEE4 application, or SN754410NEE4 equivalent, key selection considerations include per-channel 1-A continuous current rating, dual enable architecture (1,2EN and 3,4EN), Darlington/pseudo-Darlington output stage, 3-state high-impedance outputs when disabled, and PDIP-16 package thermal performance (RθJA = 60°C/W).

Technical Context

The SN754410NEE4 integrates four independent half-H drivers arranged as two pairs-channels 1&2 controlled by 1,2EN and channels 3&4 by 3,4EN-each output featuring a Darlington transistor sink and pseudo-Darlington source. Input logic operates from VCC1 (4.5–5.5 V), while power delivery occurs through VCC2 (4.5–36 V), enabling voltage-level isolation between control and load domains.

Each driver exhibits diode-clamped outputs for inductive kickback suppression, input hysteresis for noise immunity, and sink/source interlock circuitry preventing shoot-through during switching transitions. Thermal shutdown activates at TJ ≥ 150°C, forcing all outputs into high-impedance state regardless of input levels.

Key Specifications

Pinout & Package

SN754410NEE4 uses a 16-pin plastic dual-in-line package (PDIP-NE) with 19.80 mm × 6.35 mm body size and integrated ground plane vias on pins 4, 5, 12, and 13 for thermal conduction to PCB ground.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar half-H driver applications.

Compared with L293D and DRV8833, the SN754410NEE4 offers higher continuous current (1 A), proven thermal robustness in PDIP packaging, and explicit logic/output supply separation-making it optimal for legacy 5-V MCU designs driving industrial 12–24-V loads where reliability and simplicity outweigh advanced features.

Availability

SN754410NEE4 is available at Aetrix Electronics and suitable for DC motor control, bipolar stepper motor drive, latching solenoid actuation, and industrial relay interface applications requiring stable component supply across long-lifecycle industrial programs.

Supply support for SN754410NEE4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and consumer markets.

The SN754410NEE4 belongs to TI's legacy high-current interface driver product line, engineered specifically for robust, cost-effective bidirectional control of inductive loads in industrial automation, motion control, and electromechanical systems.

FAQ

What is the maximum continuous output current per channel of the SN754410NEE4?

The SN754410NEE4 supports a maximum continuous output current of ±1 A per channel under recommended operating conditions (TA ≤ 85°C, proper PCB thermal design). Peak current capability reaches ±2 A for short durations, but sustained operation above 1 A requires careful thermal management due to its 60°C/W junction-to-ambient thermal resistance in the PDIP-16 package.

Does the SN754410NEE4 require external flyback diodes when driving inductive loads?

No, the SN754410NEE4 does not require external flyback diodes. It integrates internal clamp diodes across each output (Y) terminal, providing protection against inductive kickback voltage spikes generated by relays, solenoids, and motor windings. This feature simplifies PCB layout and reduces BOM count compared to discrete transistor-based solutions.

Can the SN754410NEE4 operate with a 3.3-V microcontroller logic interface?

Yes, the SN754410NEE4 accepts 3.3-V logic inputs when VCC1 is supplied at 5 V, as its TTL-compatible inputs have VIH(min) = 2.0 V and VIL(max) = 0.8 V. However, the device itself requires a 5-V VCC1 supply for internal logic translation; direct 3.3-V VCC1 operation is not supported per datasheet specifications.

What is the purpose of the separate VCC1 and VCC2 supplies in the SN754410NEE4?

The SN754410NEE4 uses VCC1 (4.5–5.5 V) exclusively for internal logic circuitry and input buffers, minimizing power dissipation in the control section. VCC2 (4.5–36 V) powers the high-current output drivers, enabling wide-range load compatibility without exposing logic circuits to high voltages. This separation improves efficiency and enhances noise immunity between control and power domains.

How does thermal shutdown function in the SN754410NEE4?

Thermal shutdown in the SN754410NEE4 activates when the virtual junction temperature (TJ) reaches approximately 150°C, forcing all four outputs into a high-impedance (off) state regardless of input or enable signal levels. Once TJ drops below the hysteresis threshold (~135°C), normal operation resumes automatically-providing self-protecting behavior during overload or insufficient heatsinking conditions.