Overview
The L293DWP, produced by Texas Instruments, is a quadruple high-current half-H driver integrated circuit. This device is designed to provide bidirectional drive currents suitable for a variety of inductive loads such as relays, solenoids, DC and bipolar stepping motors, and other high-current/high-voltage applications. The L293DWP operates within a wide supply-voltage range of 4.5 V to 36 V and features TTL-compatible inputs, making it versatile for various control systems.
Key Specifications
| Parameter | Test Conditions | MIN | TYP | MAX | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VCC2) | 4.5 | 36 | V | ||
| Input Voltage (VI) | 7 | V | |||
| Continuous Output Current (IO) | -600 | 600 | mA | ||
| Peak Output Current (IO) (nonrepetitive, t ≤ 5 ms) | -1.2 | 1.2 | A | ||
| High-Level Output Voltage (VOH) | IOH = -0.6 A | VCC2 - 1.8 | VCC2 - 1.4 | V | |
| Low-Level Output Voltage (VOL) | IOL = 0.6 A | 1.2 | 1.8 | V | |
| Operating Free-Air Temperature (TA) | 0 | 70 | °C | ||
| Maximum Junction Temperature (TJ) | 150 | °C |
Key Features
- Wide supply-voltage range: 4.5 V to 36 V
- Separate input-logic supply (VCC1) for minimizing device power dissipation
- TTL-compatible inputs, tolerant up to 7 V
- High-noise-immunity inputs
- Internal ESD protection
- Output current up to 600 mA per channel (peak output current up to 1.2 A)
- Output clamp diodes for inductive transient suppression (integrated in L293DWP)
- Drivers enabled in pairs with enable inputs (1,2EN and 3,4EN)
Applications
- Stepper motor drivers
- DC motor drivers
- Latching relay drivers
- Solenoid drivers
- Other high-current/high-voltage loads in positive-supply applications
Q & A
- What is the L293DWP used for? The L293DWP is used to drive inductive loads such as relays, solenoids, DC and bipolar stepping motors, and other high-current/high-voltage loads.
- What is the supply voltage range of the L293DWP? The supply voltage range is from 4.5 V to 36 V.
- What is the maximum continuous output current of the L293DWP? The maximum continuous output current is 600 mA per channel.
- Does the L293DWP have internal ESD protection? Yes, the L293DWP has internal ESD protection.
- How are the drivers enabled in the L293DWP? Drivers are enabled in pairs using enable inputs (1,2EN and 3,4EN).
- What type of inputs does the L293DWP have? The L293DWP has TTL-compatible inputs.
- What is the operating temperature range of the L293DWP? The operating temperature range is from 0°C to 70°C.
- Does the L293DWP have integrated output clamp diodes? Yes, the L293DWP has integrated output clamp diodes for inductive transient suppression.
- What is the maximum junction temperature of the L293DWP? The maximum junction temperature is 150°C.
- Can the L293DWP drive bipolar stepping motors? Yes, the L293DWP can drive bipolar stepping motors.
