STMicroelectronics L6205 Dual Full Bridge Driver

The L6205 from STMicroelectronics is a powerful dual full bridge driver designed to drive inductive loads such as relays, solenoids, DC and bipolar stepping motors with ease and efficiency. It integrates all the circuitry required to drive a two-phase bipolar stepper motor including the dual DMOS full bridge with high switching speed and minimal power dissipation.

Key Features

• Operating supply voltage from 8 V to 52 V
• 5.6 A output peak current (2.8 A DC)
• RDS(ON) 0.3 Ω typ. value at 25 °C
• Operating frequency up to 100 kHz
• Non-dissipative overcurrent protection
• Parallel operation
• Cross conduction protection
• Thermal shutdown
• Under voltage lockout
• Integrated fast free wheeling diodes

The L6205 has an operating voltage range that makes it suitable for many applications, and its high peak output current allows it to drive motors with a wide range of power requirements. The device's low RDS(ON) minimizes power losses and ensures high efficiency, making it an excellent choice for battery-powered applications where power conservation is a priority.

With its ability to handle high switching frequencies, the L6205 can achieve smooth and precise motor control, which is essential for applications requiring fine positioning and speed control. The non-dissipative overcurrent protection ensures the longevity of the device by preventing damage due to excessive current.

For applications requiring higher power, the L6205's parallel operation capability allows multiple devices to be connected in parallel to share the load. Additionally, the cross conduction protection feature prevents potential damage caused by simultaneous conduction of the high-side and low-side MOSFETs of the same half-bridge.

The thermal shutdown and under voltage lockout features provide added safety by shutting down the device in the event of overheating or insufficient supply voltage, respectively. Furthermore, the integrated fast free wheeling diodes help to reduce the need for external components, simplifying the design and reducing the overall solution size.

Overall, the L6205 is a robust and versatile driver ideal for a wide range of applications that require reliable and efficient control of inductive loads.