STA7132MPR

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Introduction

The STA7132MPR is a motor driver/controller from STMicroelectronics’ Power Management Integrated Circuit (PMIC) portfolio. The device provides full bridge control of heavy duty loads such as linear actuators, brushless DC motors, and geared motors. It uses Pulse Width Modulation (PWM) to drive the motor, allowing efficient control of the motor with minimal current consumption and minimal EMI radiation.

Functionality

The STA7132MPR integrates the most frequently used functions for motor control, including current feedback, speed control, ramp-up and ramp-down, and thermal protection. It also incorporates intelligence, as the device is able to identify load stall conditions and adjust the motor output accordingly. The on-chip analog-to-digital converters allow for monitoring of temperature, current, and motor current.

The device features a dual input for the motor current sensing. This feature ensures that the STA7132MPR is implemented in the required application, allowing for a highly optimized and customizable system design. The two inputs can be set to two different sensitivities, to allow for better control of the current. The device also allows for programmable ramp-up and ramp-down functions to provide more accurate motor speed control.

The motor temperature is also monitored on-chip, with the analog-to-digital converter providing accurate and fast temperature reading. The device also supports PWM frequency up to 150 kHz, making it suitable for high speed motors like brushless DC motors. This enables faster response times and tighter control of the motor.

The STA7132MPR also supports short circuit and over- and under-voltage protection. This helps protect the motor and load from accidental damage and helps ensure that the system operates safely. Additionally, the device incorporates noise reduction circuitry to ensure smooth operation.

Application Areas

The STA7132MPR can be used in a wide range of applications, including automotive, industrial, and home automation. The device is suitable for applications such as motor control, electric power steering, access control systems, and electric vehicle charging.

The device is also suitable for use in home appliances such as washing machines and refrigerators. It can be used for controlling motor speed and direction as well as for controlling water valve motors. The device can also be used for motor control in robots, allowing for precise control of movement.

The device is particularly well-suited for linear and rotary actuators, providing smooth, precise motion control. It is also suitable for controlling brushless DC, DC brushed, and geared motors. The device can also be used for controlling wind turbine pitch, providing highly efficient operation with minimal vibration.

Conclusion

The STA7132MPR from STMicroelectronics is a motor driver/controller for heavy duty loads such as linear actuators, brushless DC motors, and geared motors. The device integrates all the necessary features for motor control, including current feedback, speed control, ramp-up and ramp-down, and thermal protection. The device also supports short circuit and over/under voltage protection, as well as noise reduction. The STA7132MPR can be used in a wide range of applications, including automotive, industrial, and home automation.

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