Overview
The L293DNE, produced by Texas Instruments, is a quadruple high-current half-H driver integrated circuit. This device is designed to provide bidirectional drive currents of up to 600 mA at voltages ranging from 4.5 V to 36 V. It is specifically tailored to drive inductive loads such as relays, solenoids, DC motors, and bipolar stepping motors, as well as other high-current and high-voltage loads in positive-supply applications. The L293DNE features TTL-compatible inputs and high voltage outputs, making it versatile for various motor control and driver applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC1, VCC2) | 4.5 to 36 | V |
| Input Voltage (VI) | 7 | V |
| Output Voltage (VO) | -3 to VCC2 + 3 | V |
| Peak Output Current (IO) | 2 A (1.2 A for L293D) | A |
| Continuous Output Current (IO) | 600 mA | mA |
| Maximum Junction Temperature (TJ) | 150 | °C |
| Storage Temperature (Tstg) | -65 to 150 | °C |
| Operating Temperature Range | 0 to 70 | °C |
| Package Type | PDIP-16 |
Key Features
- Wide Supply-Voltage Range: 4.5 V to 36 V
- Separate Input-Logic Supply
- Internal ESD Protection
- High-Noise-Immunity Inputs
- Output Current: Up to 600 mA per channel
- Peak Output Current: Up to 2 A per channel (1.2 A for L293D)
- Output Clamp Diodes for Inductive Transient Suppression (L293D)
- Each output is a complete totem-pole drive circuit with a Darlington transistor sink and a pseudo-Darlington source
- Drivers are enabled in pairs (1,2EN and 3,4EN)
Applications
- Stepper Motor Drivers
- DC Motor Drivers
- Latching Relay Drivers
- Solenoid Drivers
- Other high-current and high-voltage inductive load applications
Q & A
- What is the L293DNE used for?
The L293DNE is used to drive inductive loads such as relays, solenoids, DC motors, and bipolar stepping motors.
- What is the voltage range of the L293DNE?
The L293DNE operates within a voltage range of 4.5 V to 36 V.
- How much current can the L293DNE handle per channel?
The L293DNE can handle up to 600 mA of continuous output current per channel.
- What type of inputs does the L293DNE have?
The L293DNE has TTL-compatible inputs.
- How are the drivers enabled in the L293DNE?
The drivers are enabled in pairs, with drivers 1 and 2 enabled by 1,2EN and drivers 3 and 4 enabled by 3,4EN.
- What is the maximum junction temperature for the L293DNE?
The maximum junction temperature is 150°C.
- Can the L293DNE be used for bidirectional motor control?
- How many motors can be controlled using the L293DNE?
The L293DNE can control up to two DC motors simultaneously.
- What is the difference between L293D and L298N motor drivers?
The L293D operates at 4.5V to 36V with a maximum current of 600 mA per channel, while the L298N operates up to 46V with a maximum current of 2A per channel. The L293D is a quadruple half-H driver, whereas the L298N is a dual full-H driver.
- How do you use the L293DNE with an Arduino?
To use the L293DNE with an Arduino, connect Vcc1 to the 5V output, ensure all grounds are common, and connect the input and enable pins to Arduino digital output pins. Use PWM outputs for speed control if necessary.
