SI9986DY-T1-E3

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Motor drivers, controllers, and integrated circuits (ICs) are vital components in a variety of motor control applications, including medical equipment, home appliances, automotive and industrial equipment, etc. The SI9986DY-T1-E3 is a small, low-power integrated circuit (IC) that addresses the needs of these motor control applications.

This IC is a two-phase brushless DC (BLDC) motor driver, designed to improve the performance of BLDC motors by minimizing the components needed in the design. The device is designed to operate at voltages up to 5.5V and can provide up to 20A peak current for each of its two phases. It supports two control modes, pulse width modulation (PWM) and analogue 0-5V control. Its on-chip current sense amplifier and temperature diagnostics enable effective current monitoring, thermal shutdown, and over-temperature protection.

The SI9986DY-T1-E3 uses the motion-sensing technology, known as Hall-effect sensor-enabled position detection, to detect the rotor position of a brushless DC motor. This position is used to control the power output of the motor, allowing for precise and efficient control of the motor’s speed and torque. The Hall-effect sensing feature of this IC also allows it to be used in applications that require more precise position detection, such as in medical and print-head motor drives.

The SI9986DY-T1-E3 also features an integrated commutation controller that enables correct and efficient power delivery to the BLDC motor. This commutation controller provides the drive logic for the BLDC motor’s three independent phases, which enables smooth and efficient rotation of the motor. In addition, the device includes an active current loop that limits the current level, ensuring a maximum current limit of 20A peak during startup of the motor.

Finally, the SI9986DY-T1-E3 is an excellent option for application fields that require a motor driver IC with motion-sensing capabilities and efficient power delivery. Its Hall-effect sensing and commutation controller capabilities, as well as its current limit and thermal shut down features, ensure that the device will provide reliable and efficient performance in demanding motor control applications.

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