MIC38HC45-1YN

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

The MIC38HC45-1YN is a high-performance, monolithic integrated circuit designed to provide a regulated output voltage with excellent load and line regulation, using a synchronous switching conversion technique. This integrated circuit is fully compatible with an industry standard pinout, is capable of regulating an output current up to 1.5 amps and is suitable for telecom, networking and other such computer-related applications.

Functionality

The cut-off current for the MIC38HC45-1YN is adjustable. This device monitors the internal temperature and shuts down the power whenever an over temperature condition is detected. The limitation of the output voltage is determined by the settings of external resistor and capacitor. This integrated circuit contains all the necessary circuitry needed to support a hard restart. Additionally, this device also provides protection against over-voltage, over-temperature and over-current conditions.

Application Areas

The MIC38HC45-1YN is an ideal solution for any system requiring a DC/DC Controller in applications such as telecom and networking systems; computer motherboards; industrial PCs; and LCD monitors. It is also suitable for automotive and consumer applications that require a high-performance, monolithic voltage regulation. This device can be used as an output voltage regulator for modem power supplies, network switching power supplies, and other telecommunications and computer systems.

Working Principle

The MIC38HC45-1YN\'s working principle is based on synchronous switching conversion technique. The conversion takes place by using two outputs from a high-frequency oscillator. These two outputs (the active leg winding and the inactive leg winding) alternately switch between the two ‘control circuits’ and the ‘power circuit’. The control circuit is responsible for the regulation of the output voltage and the power circuit is responsible for the delivery of the power to the load. The oscillator controls the switching action of the active and inactive legs. The load current is sensed and the resulting feedback signal is compared with the reference voltage to adjust the output voltage.

Output Adjustment

The MIC38HC45-1YN has an output voltage adjustment pin, selector switch, potentiometer and comparator. The output voltage can be varied to adjust the power output by either increasing or decreasing the output of the duty cycle signals. The comparator compares the duty cycle signals generated by the control circuit and the duty cycle signals generated by the reference voltage. If the duty cycle signals generated by the control circuit are greater than that of the reference voltage, then the output voltage is decreased, and vice versa.

Conclusion

The MIC38HC45-1YN is a high-performance, monolithic integrated circuit which provides a regulated output voltage with excellent load and line regulation. It is suitable for use in a wide range of applications such as telecom and networking systems, computer motherboards, industrial PCs, and LCD monitors. The output voltage of the device can be adjusted using a selector switch, a potentiometer or a comparator. The working principle of the MIC38HC45-1YN is based on the synchronous switching conversion technique. This makes the device reliable and energy-efficient, ensuring top-performance with every application.

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