ZTL432BQFFTA

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PMIC, or Power Management Integrated Circuits, provide a convenient solution for monitoring, controlling and regulating the power of different devices. A Voltage Reference is a vital part of PMIC, and is necessary to measure and accurately maintain the output voltage under regulated supply conditions. The ZTL432BQFFTA is one such Voltage Reference designed by the Texas Instruments Company. This article will discuss the application field of the ZTL432BQFFTA, as well as its working principle.

Application Field

The ZTL432BQFFTA is primarily used for DC/DC and AC/DC power supply regulation in various consumer electronic products. It has a low supply current requirement, which allows it to be used in portable battery-powered devices with low power consumption needs. This makes it ideal for applications such as tablet PCs and mobile phones. It also has a wide input voltage range and is capable of handling up to 16V input voltage without any external components. Additionally, it features a stable output with a maximum 10% overshoot and undershoot.

The ZTL432BQFFTA also supports a wide operating temperature range of -40°C to +125°C, making it suitable for both high-temperature and low-temperature applications. Its low input voltage noise and high accuracy make it suitable for precision applications such as Process Control, Automotive, Medical, Industrial and Aerospace applications.

Working Principle

The ZTL432BQFFTA operates on the principle of “band gap reference”. This is a special type of voltage reference circuit that utilizes a combination of two different transistors to generate a stable reference voltage. The two transistors operate in a complimentary manner with the base of one and the collector of the other being connected together. The two transistors operate at different temperatures and as the temperature changes, the two transistors generate different voltages which are combined to provide a stable reference voltage.

The ZTL432BQFFTA also uses a feedback loop to help stabilize the output voltage. The circuit has a voltage feedback pin that is connected to the non-inverting input of an operational amplifier. When the output voltage deviates from the desired reference voltage, the feedback loop will cause the amplifier to adjust the output voltage. This ensures that the output voltage remains within the desired range even with varying input voltages.

The ZTL432BQFFTA is capable of generating an output voltage with a 0.4% accuracy and it has an operating temperature range of -40°C to +125°C. It is also RoHS compliant and contains no hazardous materials, making it safe for use. The ZTL432BQFFTA is also a low-cost solution and can be easily integrated into existing designs, making it an ideal voltage reference for many applications.

Conclusion

The ZTL432BQFFTA is a voltage reference designed by the Texas Instruments Company. It operates on the principle of “band gap reference” and utilizes a feedback loop to maintain a stable output voltage. It is ideal for applications such as tablets, mobile phones, Process Control, Automotive, Medical, Industrial and Aerospace applications due to its low supply current requirement, wide operating temperature range, and low input voltage noise. All these features make the ZTL432BQFFTA a great choice for voltage reference applications.

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