L298N Motor Driver Board Module for Stepper Motor, Smart Car, Robot L298

The L298N is a high-voltage, high-current motor driver chip produced by **STMicroelectronics** (ST). It is packaged in a **15-pin** (Multiwatt15) form factor.

Its main features include:
- High operating voltage, with a maximum supply voltage of up to **46 V**.
- High output current capability, with a peak (non-repetitive) current of **3 A** per channel and a continuous DC operating current of **2 A** per channel (total DC current up to **4 A** across both bridges).
- Rated power dissipation of **25 W** (at case temperature of 75°C).

The chip integrates **two H-bridges** (dual full-bridge drivers), enabling it to drive inductive loads such as DC motors, stepper motors, relays, solenoids, and similar devices.

Key characteristics:
- Controlled via standard logic-level signals (TTL-compatible inputs).
- Features **two independent enable inputs** (Enable A and Enable B), allowing the device to be enabled or disabled independently of the input signals.
- Includes a separate logic supply input (VSS, typically 5 V), allowing the internal logic circuitry to operate at lower voltage while the power stage handles higher voltages.
- Supports connection of an external sense resistor for current sensing/feedback to the control circuit.

It can drive:
- One **two-phase stepper motor** or one **four-phase stepper motor**, or
- **Two DC motors** simultaneously (one per H-bridge channel).

(Note: The official ST datasheet confirms these specs, with absolute maximum ratings including VS up to 50 V briefly, but recommended operating range up to 46 V, and current limits as described above for safe, continuous operation.)