SG3524D Integrated Circuits (ICs)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

SG3524D Application Field and Working Principle

The SG3524D, part of the SG3524 family of pulse width modulation integrated circuits (PWM ICs), is a high performance, fixed frequency voltage regulator control circuit. Offered in either 4-terminal and 5-terminal packages, it provides an economical and dependable solution for the regulation of small converters. This product is ideal for use in switching regulators, DC-DC conversion, and electric motor control, making it an important component in the power management of many electronic devices.

Overview of the SG3524D IC

The SG3524D is a monolithic integrated circuit that combines the following components: Pulse Width Modulator (PWM), Voltage Regulator, Low Power Driver, and Voltage Reference. It is designed to provide control and monitoring functions for both positive and negative output voltages. As such, it is an ideal component for converting AC power to DC power, driving DC motors, and controlling step-down switching regulator controllers. It is also versatile enough for use in a wide variety of applications.

The SG3524D IC is available in both 4-terminal and 5-terminal packages with the following features:

• Voltage range: 6V – 27V
• Output currents of up to 1A (max.)
• Input supply current: 12mA
• High speed switching: >=300 kHz
• Wide frequency range: 0.5 kHz – 300 kHz
• Protection against overloads, short circuits and overvoltages
• Excellent transient response for fast load changes
• Low ripple and noise

Working Principle of the SG3524D

The SG3524D is a voltage regulator control circuit with PWM modulation, used to accurately control the output voltage of a switching regulator. The device works by comparing the output voltage of the regulator with an internal reference voltage and then adjusting the pulse width of the regulator pulses accordingly. The pulses can be either positive or negative depending on the output requirement set by the internal reference voltage.

The SG3524D IC has a wide operating range that offers a variety of operating frequencies, from 0.5 kHz to 300 kHz. The output voltage is controlled using either an internal or an external reference voltage compared to the feedback voltage from the output. When the output voltage is lower than the reference voltage, the pulse width of the regulator is increased to boost the output voltage. Conversely, if the output voltage is higher than the reference voltage, the pulse width is decreased to lower the output voltage. If the output voltage is too high, an overload protection circuit is activated to prevent damage to the system.

The SG3524D is ideal for applications that require high efficiency power conversion, such as in DC-DC converters, AC-DC converters, and motor control circuits. It can also be used as a switching regulator controller to provide high current output and a wide frequency range.

Advantages of the SG3524D

The SG3524D has many advantages over traditional voltage regulator circuits. It features low power consumption, high switching speeds, excellent transient response, and low ripple and noise. The device is also very flexible, as it can be used in either 4-terminal or 5-terminal layouts and offers a wide range of operating frequencies. In addition, it is highly reliable, providing protection against overloads, overvoltages, and short circuits.

Conclusion

The SG3524D IC is a versatile, high performance voltage regulator control circuit with pulse width modulation, making it an ideal component for applications requiring low power consumption and high switching speeds. It offers excellent transient response, low ripple and noise, and wide operating frequency range. It also provides protection against overloads, overvoltages, and short circuits, ensuring reliable operation.

The specific data is subject to PDF, and the above content is for reference