A3931KJPTR-T
Parallel IC Motor Controller in 48-LQFP Package
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製造商零件號 # : A3931KJPTR-T
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包裝/封裝: LQFP-48
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製造商: Allegro Microsystems
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產品分類 : Motor Drivers, Controllers
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A3931KJPTR-T 數據表
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詳細說明
The A3931KJPTR-T is a motor driver IC designed for controlling and driving the operation of a motor. It is specifically designed for use with brushless DC (BLDC) motors, which are commonly used in various applications that require precise and controlled rotational movement.
主要特徵
- Brushless DC Motor Driver: This IC is designed to drive brushless DC (BLDC) motors, which are known for their efficiency and reliability.
- Sensorless Control: Some BLDC motor driver ICs, including the A3931KJPTR-T, support sensorless control, eliminating the need for Hall effect sensors for motor feedback.
- PWM Control: It uses pulse-width modulation (PWM) for controlling the speed and direction of the motor.
- Protection Features: It may include protection features such as overcurrent and overtemperature protection.
- Current Sensing: Some versions of this IC include current sensing for accurate control of motor current.
應用
- Electric fans and blowers for precise speed control.
- Automotive applications for controlling systems such as HVAC (heating, ventilation, and air conditioning) and powertrain components.
- Appliances for controlling the operation of fans, pumps, and other components.
- Industrial automation systems for precise motor control in various machinery.
規格
以下是所選零件的基本參數,涉及零件的特性及其所屬類別。
Product Name | A3931KJPTR-T | Product Type ! | Motor Driver IC |
Manufacturer | Allegro Microsystems | Motor Type | Stepper Motor or DC Motor |
Number of Motor Outputs | 2 | Supply Voltage | 5V to 50V |
Package Type | Surface-Mount SOIC-16 | Operating Temperature Range ! | -40°C to 85°C |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等,這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is A3931KJPTR-T?
The A3931KJPTR-T is a three-phase, sensorless, brushless DC motor driver IC designed by Allegro MicroSystems. It is specifically tailored for automotive applications such as electric power steering, HVAC blowers, engine cooling fans, and other similar systems.
How Does A3931KJPTR-T Work?
The A3931KJPTR-T operates by controlling the commutation of a three-phase brushless DC motor without the need for Hall sensors or position feedback. It uses back electromotive force (EMF) sensing to determine the rotor position and drive the motor effectively. The IC includes various protection features such as overcurrent protection and thermal shutdown.
How Many Pins does A3931KJPTR-T have and What are the Functions of the Pinout Configuration?
The A3931KJPTR-T is housed in a 28-pin QFN (Quad Flat No-leads) package. The pinout configuration includes:
- VCP: Charge pump output pin.
- SPI: Serial peripheral interface communication pin.
- VS: Supply voltage pin.
- VCP: Charge pump voltage pin.
- PGND, NGND: Power and signal ground pins, respectively.
- PHN, PHB, PHA: Phase outputs for motor connection.
- GAIN: Gain setting pin.
- FAULT: Fault output indication pin.
What are the Pros and Cons of A3931KJPTR-T?
Pros:
- Sensorless Operation: Eliminates the need for Hall sensors, reducing system complexity.
- Automotive Grade: Designed and qualified for automotive applications, ensuring high reliability.
- Built-in Protection: Includes overcurrent protection and thermal shutdown for enhanced safety.
- Efficient Motor Control: Provides smooth and efficient motor commutation for optimal performance.
- Compact Package: The QFN package offers space-saving benefits for compact designs.
Cons:
- Complexity: Requires understanding of motor control principles for proper integration and configuration.
- External Components: May need additional external components for specific motor driving requirements.
- Cost: Automotive-grade components like the A3931KJPTR-T may come at a higher cost.
Are There Any Equivalents/Alternatives to A3931KJPTR-T for Recommendation?
- The A4964 from Allegro MicroSystems is a similar three-phase sensorless brushless DC motor driver that can be considered.
- Alternatives to the A3931KJPTR-T include the DRV10983 from Texas Instruments and the LB11961 from ON Semiconductor.
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