MC44608P75

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MC44608P75 is a high performance pulse width modulation (PWM) controller IC developed by ON Semiconductor Corporation. It is a high-efficiency controller IC ideal for applications such as those requiring industrial motor control applications including solenoids, Universal Motors, and high current switches. The MC44608P75 can operate at high switching speeds with low noise generation, and offers an optimized solution for critical design requirements such as load regulation, output voltage range, and footprint.-

Application Field of MC44608P75

The MC44608P75 provides a wide range of applications. This device supports systems which need dual output with frequency modulation, where one output is sourcing and the other is sinking. These systems include dimmer switching for fluorescent lamp regulation, fan speed control, DC/DC conversion, AC/DC power supplies, and motor controllers. It is also suitable for boost converters and single-ended primary-inductor converters (SEPIC).

Working Principle of MC44608P75

The MC44608P75 uses pulse-width modulation (PWM) technique from 0.1kHz to 300kHz. It consists of a comparator and two power switches, which it uses to turn each output off and on for specific periods of time. When the output is on, current flows out of the device, and when the output is off, it stops the current flow. The output frequency of this device is determined by a clock signal and can be adjusted by varying the duty cycle. The duty cycle is the ratio of the ON time to the OFF time. It is set by using a pulse-width modulation signal and can be adjusted in two different ranges to a very accurate accuracy.

The offline switching feature of the MC44608P75 includes a wide range of functions, such as peak-load current limiting, short-circuit protection, thermal shutdown protection and over-voltage protection. In addition, the device is designed to support inductive load switching and AC/DC, DC/DC switching. The entire package of the IC is in compliance with the isolation requirements, allowing inductive output switching.

The MC44608P75 is typically used to drive a motor, which requires both speed control and current regulation. It can be used to control the speed and torque of stepper motors, AC and DC motors, as well as for controlling heating elements and blowers. The device also supports pulse-width modulation, which provides a wide range of speed control by adjusting the duty cycle of the output.

Conclusion

The MC44608P75 is an advanced PWM Controller IC from ON Semiconductor Corporation, which is ideal for industrial motor control applications, including solenoids, high current switches and universal motors. The device offers many advantages such as a wide voltage range, frequency modulation, and high-efficiency switching. The MC44608P75 can also support a wide range of outputs, including single-ended primary-inductor converters, boost converters, and inductive load switching.

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