MAX1749EUK-T

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MAX1749EUK-T is a highly integrated, monolithic, digital motor driver and controller from Maxim Integrated Products. It combines a sensorless motor driver and controller, while providing integrated full-scale protection with failsafe and thermal shutdown. Designed to meet the requirements of highly autonomous mobile robotics applications, the MAX1749EUK-T offers reliable and robust operation, as well as scalability of speed resolution and communication with external sensors.

Application Field of MAX1749EUK-T

The MAX1749EUK-T can be used in a variety of applications including mobile robotics, industrial automation, navigation systems and camera stabilization systems. It is designed to provide an integrated solution to meet the stringent requirements of advanced autonomous mobile robots. The MAX1749EUK-T’s feature set includes a sensorless motor driver, full fault protection with FET-based failsafe control, low power lost motion detection, brake pre-bias and thermal shutdown. It also supports a variety of external sensors for applications requiring higher resolution, feedback and control.

The MAX1749EUK-T is also suitable for use in space-constrained battery-powered systems, as it supports a wide input voltage range of 5V-20V and has a quiescent current of only 8mA. The device is also well suited for use in automotive applications, due to its high ESD tolerance and total temperature range of -40°C to +125°C.

Working Principle of MAX1749EUK-T

The MAX1749EUK-T utilizes a combination of linear voltage regulators and pulse-width modulation (PWM) to achieve its motor control. The motor is driven by a combination of linear current regulation and PWM, enabling the motor to achieve smooth, torque control from low to high speeds.

The MAX1749EUK-T is designed to quickly detect and react to the most common motor faults. The integrated failsafe-based protection provides reliable operation even when the system is subject to short circuits, over-temperature or overvoltage. The failsafe circuit ensures that the motor will not continue to run unmonitored in the event of a fault. The device also provides low power lost motion detection, which prevents dangerous high-current operation in the event of a shorted armature.

The MAX1749EUK-T supports a wide variety of external sensor inputs, providing the flexibility to optimize motor control for accuracy and speed. The device can be configured to read both absolute and incremental encoders, as well as Hall-effect, inductive, and capacitive sensors. In addition, the MAX1749EUK-T supports external current sensors, allowing for dynamic current control. This ensures that the motor operates within the safe guidelines of the application, as it can be monitored for current in operations with high torque.

The MAX1749EUK-T supports a variety of communication protocols, including I2C, SPI, SENT, and/or PWM for both control and feedback. This allows for seamless integration with a host processor, enabling the system to be easily configured and monitored in real-time.

Conclusion

Overall, the MAX1749EUK-T provides a highly integrated and reliable solution for autonomous mobile robotics applications. Its innovative design and suite of features make it well suited for automotive, industrial, and consumer applications. Its signal conditioning and control, integrated full-scale protection, support for external sensors and communication protocols, and ability to provide dynamic current control make it the ideal choice for a wide variety of applications requiring precision motor control.

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