The L295 from STMicroelectronics is a high-current dual switch-motor driver integrated circuit designed for applications requiring bidirectional drive of inductive loads such as relays, solenoids, DC and bipolar stepping motors. It operates directly from a standard supply voltage (up to 46V) and delivers output currents up to 4A.
This robust motor driver features a full H-bridge per channel, allowing for the control of two motors independently in forward or reverse direction. Its versatility is further enhanced by the inclusion of internal control logic, which permits operation in either direction without the need for external diodes. This makes the L295 an ideal choice for simplifying the design and reducing the component count in motor control applications.
The device is equipped with thermal shutdown and non-dissipative overcurrent protection, ensuring reliable performance and safeguarding the IC from potential damage due to overloads or excessive temperatures. Additionally, the L295 has a diode bridge for easy connection to bipolar stepper motors for full micro-stepping control.
Designed with user convenience in mind, the L295 can be used in conjunction with the L297 Stepper Motor Controller, which provides additional features such as chopper mode of operation, phase sequence storage, and on-chip PWM chopper circuits for current control. This combination offers a complete solution for advanced motor control systems.
Key features of the L295 include:
- Operating supply voltage up to 46V
- Total DC current up to 4A
- Low saturation voltage
- Overtemperature protection
- Logical "0" input voltage up to 1.5V (high noise immunity)
Whether for industrial, automotive, or consumer applications, the L295 dual switch-motor driver is a reliable and efficient choice for designers looking to implement cost-effective and compact motor control solutions.
