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L298HN
+BOMIC BRIDGE DRIVER PAR 15MULTIWATT
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ManufacturerSTMicroelectronics
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Mfr. Part #L298HN
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Datasheet L298HN DataSheet
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Package MULTIWATT-15
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In Stock3942
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Specifications
| Attribute | Value |
| Package / Case | Tube |
| Part Status | Active |
| Output Configuration | Half Bridge (4) |
| Applications | DC Motors, Relays, Solenoids, Stepper Motors |
| Interface | Logic |
| Load Type | Inductive |
| Technology | Bipolar |
| Current - Peak Output | 2A |
| Voltage - Supply | 4.5V ~ 7V |
| Voltage - Load | 4.8V ~ 46V |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Fault Protection | Current Limiting, Over Temperature |
| Mounting Type | Through Hole |
Overview
Description
Key features include a wide range of input voltages, built-in diodes for back EMF protection, and thermal shutdown protection to prevent overheating. The chip operates as a dual H-bridge, allowing for forward, reverse, and stop motor control by manipulating input signals. It is available in a Multiwatt15 package, making it easy to integrate into circuit designs with minimal external components.
The L298HN is commonly used in conjunction with microcontrollers or other control logic to create efficient motor control systems, offering a balance of performance and ease of use for hobbyists and professionals alike.
Equivalent
Features
1. Dual Full-Bridge: Capable of driving two DC motors or one stepper motor.
2. High Voltage and Current: Operates with supply voltages up to 46V and can handle total DC currents up to 4A.
3. Separate Input Logic Supply: Input logic voltage can be different from motor voltage, ranging from 4.5V to 7V.
4. Over-temperature Protection: Features thermal shutdown to prevent damage from overheating.
5. High Noise Immunity: Offers robust performance in noisy environments.
6. Current Sensing: Includes provisions for current sense resistors to monitor and control motor current.
7. TTL Compatible Inputs: Ensures compatibility with 5V logic systems.
8. Robust Design: Includes built-in diodes to protect against inductive voltage spikes.
The L298HN is ideal for robotics, automation, and industrial applications needing reliable motor control. Its compactness and ability to handle high power make it suitable for a variety of projects.
Pinout
1. Pin 1 (Current Sense A): Used to sense the current through the load connected to Out 1 and Out 2.
2. Pin 2 (Input 1): Controls the state of Out 1.
3. Pin 3 (Enable A): Enables the operation of the A half-bridge (Out 1 & Out 2).
4. Pin 4 (Input 2): Controls the state of Out 2.
5. Pin 5 (Output 1): Connected to one end of the load.
6. Pin 6 (GND): Ground.
7. Pin 7 (Output 2): Connected to the other end of the load.
8. Pin 8 (VSS): Supply voltage for the logic inputs (5V typical).
9. Pin 9 (Output 3): Connected to one end of the load.
10. Pin 10 (GND): Ground.
11. Pin 11 (Output 4): Connected to the other end of the load.
12. Pin 12 (Input 3): Controls the state of Out 3.
13. Pin 13 (Enable B): Enables the operation of the B half-bridge (Out 3 & Out 4).
14. Pin 14 (Input 4): Controls the state of Out 4.
15. Pin 15 (Current Sense B): Used to sense the current through the load connected to Out 3 and Out 4.
This configuration allows for versatile control of motors, making the L298HN suitable for various applications requiring robust motor control.
Manufacturer
Application
1. Robotics: Used to control motor-driven wheels or robotic arms.
2. Automotive: Employed in automotive electronics for controlling small motors in features like window lifts or seat adjusters.
3. Industrial Automation: Drives motors for conveyor belts and automated systems.
4. Consumer Electronics: Utilized in devices requiring motorized parts like CD/DVD drives.
5. Mechatronics: Integrated into educational or prototyping platforms for motor control experiments.
Its versatility and ability to handle significant current make it ideal for various motor control applications.