Overview
The L298P, produced by STMicroelectronics, is an integrated monolithic circuit designed as a high voltage, high current dual full-bridge driver. It is available in 15-lead Multiwatt and PowerSO20 packages. This driver is capable of accepting standard TTL logic levels and is designed to drive inductive loads such as relays, solenoids, DC motors, and stepping motors. The device includes two enable inputs that allow for independent control of the bridges, and it features an additional supply input for logic operations at a lower voltage.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage | Up to 46 | V |
| Total DC Current | Up to 4 | A |
| Logical "0" Input Voltage | Up to 1.5 | V |
| Peak Output Current (Non-Repetitive) | 3 | A |
| Peak Output Current (Repetitive) | 2.5 | A |
| DC Operation Current | 2 | A |
| Logic Supply Voltage | 4.5 to 7 | V |
| Quiescent Supply Current | 13 to 70 | mA |
| Junction Operating Temperature | -25 to 130 | °C |
| Storage and Junction Temperature | -40 to 150 | °C |
Key Features
- High voltage and high current capabilities
- Low saturation voltage
- Overtemperature protection
- High noise immunity with logical "0" input voltage up to 1.5 V
- Two enable inputs for independent bridge control
- Additional supply input for lower voltage logic operations
- TTL compatible inputs
Applications
The L298P is versatile and can be used in various applications, including:
- Dual brush DC motors
- Stepper motors
- Relays and solenoids
- Bidirectional DC motor control
- Two-phase bipolar stepper motor control
It is particularly useful in scenarios requiring the control of inductive loads and where high current and voltage handling are necessary.
Q & A
- What is the maximum operating supply voltage of the L298P?
The maximum operating supply voltage of the L298P is up to 46 V. - What is the total DC current capability of the L298P?
The total DC current capability of the L298P is up to 4 A. - What are the logic supply voltage requirements for the L298P?
The logic supply voltage for the L298P ranges from 4.5 V to 7 V. - Does the L298P have overtemperature protection?
Yes, the L298P includes overtemperature protection. - What types of loads can the L298P drive?
The L298P can drive inductive loads such as relays, solenoids, DC motors, and stepping motors. - How many enable inputs does the L298P have?
The L298P has two enable inputs for independent control of the bridges. - What is the significance of the additional supply input on the L298P?
The additional supply input allows the logic to operate at a lower voltage. - What is the typical quiescent supply current of the L298P?
The typical quiescent supply current of the L298P ranges from 13 mA to 70 mA depending on the input conditions. - What are the storage and junction temperature ranges for the L298P?
The storage and junction temperature ranges for the L298P are -40°C to 150°C. - Can the L298P be used for bidirectional DC motor control?
Yes, the L298P can be used for bidirectional DC motor control.
