ST L6221A

Part points

• The L6221A chip is a dual DMOS full bridge driver designed for controlling high power stepper motors. It features a wide voltage range, built-in protection features, and can deliver up to 5A peak current per bridge. The chip is commonly used in industrial and automotive applications for precise motor control.

• Equivalent

  The equivalent products of L6221A chip are L6221DR, L6221N, L6221RDD, L6221DT, L6221AD013TR, and L6221AD. These chips are part of the same family and have similar functions and features as the L6221A chip.

• Features

  1. High efficiency synchronous step down converter 2. Wide input voltage range (3.3V to 18V) 3. Output voltage adjustable from 0.6V to VIN 4. Peak current mode control with external compensation 5. Adjustable frequency up to 2MHz 6. Soft-start and power good features 7. Overcurrent, overvoltage, and thermal protection circuits

• Pinout

  The L6221A is a dual full-bridge motor driver with a 32-pin package. The functions of the pins include motor outputs, enable inputs, direction inputs, and power supply connections. Overall, it is designed to drive two DC motors or one stepper motor with precise control and high efficiency.

• Manufacturer

  STMicroelectronics is the manufacturer of the L6221A. It is a multinational electronics and semiconductor company. STMicroelectronics designs and manufactures a wide range of products for various applications, including automotive, industrial, and consumer electronics. The L6221A is a motor driver IC designed for controlling brushless DC motors in automotive and industrial applications.

• Application Field

  The L6221A is commonly used in automotive applications for controlling the current flow in stepper motor drivers, electric power steering systems, and other motor control systems. It is also used in industrial automation, robotics, and other applications that require precise motor control and monitoring.

• Package

  The L6221A chip is available in a PowerSSO-36 package. It is a MOSFET driver integrated circuit that comes in a rectangular form and measures 5mm x 7mm x 1.75mm in size.