STMicroelectronics E-L293DD013TR

Overview

E-L293DD013TR from STMicroelectronics is a monolithic high-voltage, high-current quad half-H-bridge driver IC designed for bidirectional control of inductive loads. It delivers 600 mA continuous output current per channel (1.2 A non-repetitive peak), features integrated clamp diodes, dual supply rails (VS up to 36 V, VSS = 4.5–36 V), and independent enable inputs per channel pair-used in DC motor direction control in industrial actuators.

For engineers reviewing the E-L293DD013TR datasheet, E-L293DD013TR pinout, E-L293DD013TR application, or E-L293DD013TR equivalent, key selection considerations include per-channel saturation voltage (V_CE(sat) ≤ 1.8 V at ±600 mA), thermal resistance (R_{th j-pins} = 14 °C/W), logic-level noise immunity (V_IL up to 1.5 V), switching frequency limit (≤5 kHz), and SO20 package heatsinking via 8-center-pin thermal pad.

Technical Context

The E-L293DD013TR implements four independent push-pull output stages with internal freewheeling diodes per channel, enabling bidirectional current flow without external diode networks. Each pair of channels (1&2, 3&4) shares a dedicated enable input (pins 1 and 11), allowing synchronous on/off control of two H-bridges.

It uses separate logic (VSS, pin 20) and power (VS, pin 10) supplies, permitting TTL/DTL-compatible 5 V logic interfacing while driving loads up to 36 V. Thermal protection triggers shutdown above 150 °C junction temperature, and output stage design supports inductive load switching with controlled rise/fall times (250 ns typ.) and propagation delays (750 ns turn-on, 200 ns turn-off).

Key Specifications

Pinout & Package

The E-L293DD013TR is housed in a 20-lead SOIC package (SO20, 12+4+4 configuration) with 8 center pins (pins 5–8 and 13–16) internally connected and used as a shared thermal pad for heatsinking.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TB6612FNG, E-L293DD013TR offers plug-and-play inductive load handling via integrated diodes but higher conduction loss; versus SN754410, it provides identical functionality with ST's industrial-grade qualification and longer production lifetime assurance.

Availability

E-L293DD013TR is available at Aetrix Electronics and suitable for industrial actuator control, DC motor direction control, and relay driving interfaces requiring stable component supply across multi-year production cycles.

Supply support for E-L293DD013TR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in power management, analog, MEMS, and microcontroller technologies for industrial, automotive, and consumer markets.

The L293D/L293DD product line was developed specifically for robust, cost-effective bidirectional DC and stepper motor control in factory automation, HVAC systems, and office equipment - emphasizing ease of use, thermal resilience, and logic-level compatibility.

FAQ

What is the maximum safe operating voltage for the E-L293DD013TR's VS and VSS pins?

The absolute maximum VS (power supply) is 36 V, and VSS (logic supply) also supports up to 36 V. However, for reliable long-term operation, ST recommends limiting VS to ≤24 V and VSS to 4.5–5.5 V when interfacing with standard 5 V microcontrollers. Exceeding 24 V on VS increases power dissipation and thermal stress, especially at full 600 mA load per channel.

Can the E-L293DD013TR drive a 12 V, 1 A DC motor continuously?

No - the E-L293DD013TR is rated for 600 mA continuous per channel. Driving a 1 A motor would exceed its safe operating area, causing thermal shutdown or accelerated degradation. For 1 A loads, use parallel channel pairing (not recommended due to mismatch risk) or select a higher-current driver like the TB6612FNG or DRV8871. Derating to 400–500 mA is advised for ambient temperatures above 50 °C.

Is the SO20 package's 8-center-pin thermal pad required to be connected to ground?

No - the 8-center pins (pins 5–8 and 13–16) are internally connected to the die substrate and serve solely as a thermal path, not an electrical node. They must be soldered to a large, unbroken copper pour on the PCB for heatsinking but should not be electrically tied to any net unless explicitly grounded per system safety requirements. ST's layout guidelines specify ≥6 cm² copper area for sustained 600 mA operation.

Does the E-L293DD013TR support PWM speed control of DC motors?

Yes - it supports PWM input on the logic inputs (pins 2, 9, 12, 19) at frequencies up to 5 kHz, matching its specified switching capability. For optimal performance, apply PWM to the input pins while holding the corresponding enable pin (1 or 11) high; avoid PWM on enable pins due to slower response and potential shoot-through risk during transitions.