BD6873KN-E2

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The incorporation of motor controller components has gained high demand within professional, industrial and consumer application fields due to the growing requirement of power management systems. This is due to the need to effectively and accurately manage the amount of power consumed by motor controllers, in turn removing potentially dangerous overloads and wastage. This is more particularly crucial in safety and emergency systems where failure of a motor controller’s circuitry could potentially cause irreparable damage.

In order to meet this ever-growing demand, many companies are producing motor controllers, drivers and switches suited to both consumer and professional applications. With the integration of hi-end technologies such as advanced digital signal processing (DSP) and programmable logic controllers (PLCs) into the realm of motor controllers, fully integrated solutions can now be developed, offering outstanding performance in terms of speed, accuracy, cost and size. One such integrated solution is the BD6873KN-E2 power management IC.

The BD6873KN-E2 is a highly versatile, low-voltage power management IC from ROHM Semiconductor that incorporates many features into a single package. The device consists of a variable-frequency oscillator, wide-range DC-DC converter, current limiter, and soft-starter, allowing for simplified board design and reduced development time. This versatile and cost effective PMIC can be used in drive systems, such motor operating machinery, automotive steering, and consumer applications.

The BD6873KN-E2 is designed to maximize motor performance while robustly protecting against hazardous conditions such as overvoltage, undervoltage, overload, and overtemperature. Utilizing a high-function, low-voltage wide-range DC-DC converter and PWM, the device is suitable for driving 240VAC or 400VAC motors. Its wide input voltage range of 9V to 38V makes it suitable for applications such as UPSs and other consumer application.

The BD6873KN-E2 incorporates a number of features to ensure the highest possible performance and reliability, making it the ideal choice for motion control applications. On-chip detection circuits are provided for overcurrent, overload, over and under-voltage protection, providing uninterrupted operation even in the event of an overcurrent fault. The device also features a variable-frequency oscillator that can be adjusted to generate stable current-limiting signals up to 100kHz, allowing for smooth start and run-up to the rated torque. The variable-frequency oscillator operates with a duty cycle of up to 100%, meaning the rated motor torque can be obtained at a low input voltage.

The BD6873KN-E2 also features a soft-starter circuit to protect against motor damage due to overloading or switching off of the device during operation. The soft-starter circuit rapidly reduces the amount of current supplied to the motor, preventing any abrupt fluctuations in the voltage or current supply. This allows for a smooth start-up, avoiding any sudden increases in the torque or power consumed by the motor.

The BD6873KN-E2 from ROHM Semiconductor is a comprehensive power management IC ideal for motor control applications. Its wide input voltage range, current limiting protection, and soft-start circuitry make it the perfect solution for controlling motors from 9V to 400VAC. Additionally, the device’s low operating cost and attractive form factor makes it an attractive choice for high-end motion control applications.

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