L6235QTR Integrated Circuits (ICs)

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The L6235QTR is a power management integrated circuit (PMIC) designed for motor driver and controller applications. It is a high-performance, flexible and cost-effective Delta-Sigma PWM controller, offering high dynamic performance, high-efficiency control and flexible trigger sources ideal for many mechatronics applications.The L6235QTR is a two-channel bipolar stepper motor driver, capable of driving up to two dc or stepper motors, enabling easy control of many different types of motors, including both brushed and brushless motors. It uses a synchronous buck converter architecture, with a patented Delta-Sigma PWM modulation and a dual output high side flyback.The L6235QTR operates in a voltage domain, and offers a nominal output current of up to 5A, with a typical power supply voltage range of 7 to 28V. It features an internal pre-driver, and is capable of driving a variety of independent, two-phase unipolar and bipolar stepper motors, as well as brushed dc motors.The L6235QTR includes dedicated low-side and high-side drivers, as well as a user-programmable fault protection circuit, allowing for protection against excessive motor current or over-temperature conditions. In addition, the L6235QTR supports external current sensing and a DA converter, making it compatible with common applications such as motor current measurement, motor position control and motor speed control.The L6235QTR offers a wide range of trigger sources including PWM, quadrature, Hall-effect sensors, tachomotor speed feedback, and a programmable delay, allowing for a more flexible control of motor operation. In addition, the adjustable frequency of the PWM signals allows for adjusting the motor speed for application specific needs.The L6235QTR also features a sleep mode and an internal integrated sleep mode pull-down circuit, enabling it to be used in applications where a zero power consumption is restrictive. In addition, the L6235QTR has a power-down mode, providing additional power savings for applications that require a low power consumption, such as mobile or embedded designs.In conclusion, the L6235QTR is a highly-flexible PMIC designed for use in motor driver and controller applications. It offers a wide range of control and protection features, including dual-channel output, programmable fault protection, current sensing, external trigger sources, adjustable PWM frequency, sleep mode, and power-down mode, making it an ideal choice for a variety of motor control applications.

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