MC34164D-5R2

Pulse width modulation (PWM) control is a powerful technique that offers superior performance in a variety of power control applications. It is extensively used in power electronics applications such as motor speed control, temperature control, welding, etc. The MC34164D-5R2 regulator is a versatile 3-terminal device suitable for any PWM control circuit. It is a pulse width modulated (or PWM) supervisory circuit which provides accurate and reliable control of output voltage or current. This article explains the application field and working principle of MC34164D-5R2.

Application Field

The MC34164D-5R2 is a low-cost, efficient and reliable PWM supervisory device suitable for any power control application. It is also suitable for automotive applications as it has a wide operating temperature range of -40° C to +125° C.

The MC34164D-5R2 is a versatile 3-terminal device suitable for any PWM control circuit. This device is suitable for a variety of PWM control applications, such as motor speed control, temperature control, welding and other power related applications.

Working Principle

The MC34164D-5R2 utilises a single integrated circuit (IC) to control the output voltage or current of a PWM system. This device provides accurate and reliable control of the output voltage or current. It features an adjustable time-out to prevent over-current or over-voltage conditions, as well as an adjustable maximum duty cycle. It also provides overvoltage and undervoltage detect circuit (OCD) to ensure the safety of the system.

This device uses a pair of switching transistors to monitor the output voltage or current. A voltage divider is used to adjust the level of the voltage or current for the PWM output. The duty cycle of the PWM signal is controlled by the switching transistor. A comparator is used to compare the voltage or current output to the preset threshold. If the voltage or current exceeds the preset threshold, the switching transistor is disabled and the PWM output is reduced.

The MC34164D-5R2 has a fault detection mechanism which detects any over-current or over-voltage conditions and shuts down the PWM output. It also features an adjustable time-out to prevent over-current or over-voltage conditions. Additionally, the device is equipped with an overvoltage and undervoltage detect circuit (OCD) to ensure the safety of the system.

Conclusion

The MC34164D-5R2 is a highly integrated, low-cost and reliable PWM supervisory device suitable for power control applications. It features an adjustable time-out to prevent over-current or over-voltage conditions, as well as an adjustable maximum duty cycle. It also provides overvoltage and undervoltage detect circuit (OCD) to ensure the safety of the system. Due to its wide operating temperature range and superior performance, this device is suitable for use in a variety of power electronics applications.