MAX6126B21+

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PMIC – Voltage Reference refers to a device used to compare an unknown voltage to a known reference voltage and create an output voltage in a specific voltage range. This range may include both positive and negative values or just positive values. The MAX6126B21+ device is a classic example of a voltage reference device, and it features an industry-leading 0.5% voltage reference accuracy and excellent temperature performance even over wide temperature ranges. In this article, we will discuss the application field and working principle of the MAX6126B21+.

Application Field

The MAX6126B21+ has many uses and is designed specifically for mid- to high-voltage accuracy and temperature performance. It is perfect for applications such as:

• Power Supply Monitoring and Control Systems
• Wireless Base Stations
• Data Servers and Storage Systems
• Industrial Automation Equipment
• Lead Acid Battery Control/Monitoring
• Battery Back-Up Power Supplies

The device can also be used where reference accuracy and temperature performance is critical in the presence of wide temperature ranges and high-performance power management circuits. Also, by combining the MAX6126B21+ with linear regulators, designers can achieve exceptional voltage regulation accuracy in systems with limited board space.

Working Principle

The MAX6126B21+ is a band gap voltage reference device that features an industry-leading 0.5% voltage reference accuracy and excellent temperature performance over a wide temperature range. It operates from a 12V input supply and can provide a stable voltage reference output operating from -40°C to 125°C.

The device works by using a series of transistors and resistors to create a stable voltage reference. This is done by using a band-gap reference circuit, which sources current through two transistors and a resistor connected to the output point. The current created is a function of temperature and voltage, therefore providing the stability and constancy required for a voltage reference.

The resulting voltage reference output can be used to compare the unknown voltage that is being measured to the known reference voltage from the MAX6126B21+. The output voltage is created in the specific range that is set in the device, either positive and negative values or only positive values. This reference voltage can then be used to accurately measure the voltage level that is being measured, making it a versatile tool for power control and monitoring.

Conclusion

The MAX6126B21+ is a versatile voltage reference device perfect for a variety of applications requiring high-voltage accuracy and temperature performance. By combining the MAX6126B21+ with linear regulators, designers can achieve excellent voltage regulation accuracy in a variety of systems that have limited board space. We have discussed the application field and working principle of the MAX6126B21+, both of which are key components when considering a voltage reference device.

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