The L298 is a full-bridge driver chip produced by STMicroelectronics. It is suitable for high voltage, high current, low saturation voltage inductive loads such as relays, solenoids, DC and stepping motors.
This document describes the L298 dual full‑bridge driver, an integrated monolithic circuit available in Multiwatt15 and PowerSO20 packages. It details the operating supply voltage, total DC current capability, logic input levels, and protection features.
The handbook includes pin‑out diagrams, electrical and thermal characteristics, suggested PCB layout, mechanical dimensions, and example application circuits for DC motor and stepper motor control.
| Operating Supply Voltage | Up to 46 V |
|---|---|
| Total DC Current | Up to 4 A |
| Logic Low Input Voltage | Up to 1.5 V |
| VSS Supply Voltage (Logic) | Typical 5 V |
| Total Power Dissipation | 25 W |
| Junction‑Case Thermal Resistance | Max 3 °C/W |
The L298 can operate with a supply voltage up to 46 V.
The device can handle a total DC current of up to 4 A.
A non‑inductive 100 nF capacitor should be connected between VSS and ground.