XC6123F520ER-G

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PMIC (Power Management Integrated Circuits), also known as Supervisors, are widely used in the power domain to get desired performance from the respective circuits. XC6123F520ER-G is a PMIC from Fujitsu Semiconductor, which is widely used in various applications and provides a wide range of robust performance for the circuits it is used for.

The XC6123F520ER-G is a supervisor circuit designed for a high current output and a wide input voltage range. It integrates four independent power regulators and a precise voltage monitor and comprises of metal oxide semiconductor (MOS) transistors which provide efficient switching capability and high output ripple suppression. The device is mainly used for applications which need simultaneously regulated voltages and precise voltage monitoring.

Applications

The XC6123F520ER-G is mainly used in automotive and consumer applications, medical and industrial equipment, renewable energy based devices such as electric vehicles, and also in high-voltage applications. Its operating temperature range of -40°C to +125°C makes it suitable for use in various temperature applications and its low current consumption makes it perfect for small size applications.

The XC6123F520ER-G is suitable for providing medium and low output currents for all kinds of circuits. Its adjustable, precise output voltage makes it ideal for use in voltage processors, battery systems and electric-powered vehicles. Its wide operating voltage range also makes it suitable for use in circuits with high-voltage and multi-voltage inputs such as routers and switches.

Working Principle

The XC6123F520ER-G works on a two-stage architecture. This two-stage design uses two internal voltage regulators. The first stage is called the primary regulator and the second stage is referred to as the secondary regulator. The primary regulator consists of a power transistor, current sense amplifier, and a current-mode PWM controller. The output voltage is regulated by the PWM controller by tracking the output voltage feedback signal to the power reference voltage. The current sense amplifier keeps track of the output load current and feeds back this information to the PWM controller.

The secondary regulator works in parallel with the primary regulator and uses a secondary switch to adjust the output in response to the output voltage feedback signal. The secondary regulator is used to fine-tune the output voltage of the primary regulator to the desired output voltage.

The XC6123F520ER-G also comes with a voltage monitoring system. This system provides accurate voltage monitoring and over-voltage protection. The voltage monitor monitors the voltage levels of the output and compares it to the preset threshold. In case of an over-voltage, the voltage monitor activates a circuit which shuts down the output.

Overall, the XC6123F520ER-G is a robust and power efficient PMIC ideal for multiple applications, particularly automotive and consumer applications. Its precise voltage monitoring and over-voltage protection functionalities make it a great choice for use in circuits which require stable output voltages.

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