The A3924KLVTR-T from Allegro MicroSystems, LLC is a SPI-controlled, automotive full-bridge MOSFET driver with dual sense amps. It is designed to drive a wide range of DC and stepper motors, including brushed DC, brushless DC, and bipolar stepper motors. The A3924KLVTR-T is capable of delivering up to 2.5 A of continuous current per channel and can operate at voltages up to 38 V.

The A3924KLVTR-T features a number of features that make it ideal for automotive applications, including:

• High efficiency: The A3924KLVTR-T is designed to be highly efficient, minimizing power consumption and heat generation.
• Low EMI: The A3924KLVTR-T is designed to generate low EMI, making it ideal for use in noise-sensitive environments.
• Robustness: The A3924KLVTR-T is designed to be robust and reliable, even in harsh automotive environments.

The A3924KLVTR-T is controlled using a SPI interface. This interface allows for precise control of the motor speed and direction, as well as other parameters such as current limiting and PWM frequency. The A3924KLVTR-T also features a number of diagnostic features, such as overcurrent protection, overtemperature protection, and undervoltage protection.

The A3924KLVTR-T is packaged in a 38-pin eTSSOP package. It is a small and lightweight package that is ideal for space-constrained applications.

Applications

The A3924KLVTR-T is suitable for a wide range of automotive applications, including:

• Power window motors
• Sunroof motors
• Seat adjustment motors
• Mirror adjustment motors
• HVAC fan motors
• Fuel pump motors
• Wiper motors
• Anti-lock braking system (ABS) pumps
• Electronic power steering (EPS) motors

Features

• SPI-controlled
• Automotive full-bridge MOSFET driver
• Dual sense amps
• Up to 2.5 A of continuous current per channel
• Operates at voltages up to 38 V
• High efficiency
• Low EMI
• Robustness
• Diagnostic features: overcurrent protection, overtemperature protection, undervoltage protection
• 38-pin eTSSOP package

Benefits

• Precise control of motor speed and direction
• Reduced power consumption and heat generation
• Low noise operation
• Reliable operation in harsh automotive environments
• Small and lightweight package

Conclusion

The A3924KLVTR-T is a versatile and powerful SPI-controlled automotive full-bridge MOSFET driver with dual sense amps. It is suitable for a wide range of automotive applications, including power window motors, sunroof motors, seat adjustment motors, mirror adjustment motors, HVAC fan motors, fuel pump motors, wiper motors, ABS pumps, and EPS motors. The A3924KLVTR-T offers a number of features and benefits, including precise motor control, high efficiency, low EMI, robustness, diagnostic features, and a small and lightweight package.