TS7812CZ C0G

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Linear voltage regulators (LVR) provide a steady voltage output from a varying input voltage regardless of changes in current. This makes them ideal for providing a constant voltage source for microcontrollers, aFETs, and other sensitive subsystems that must maintain a stable supply voltage. In this article, we will explore the application field and working principle of TS7812CZ C0G, one of the most popular LVRs available today.

Application Field

TS7812CZ C0G is a high-medium power linear voltage regulator that operates as a 3.0V to 18.0V output voltage range with a maximum total input voltage of 35V. This makes it highly suitable for a wide range of applications, including automotive diagnostics, battery-operated devices, and both industrial and consumer electronics. It is most commonly used in industrial power supplies, computer systems, precision medical systems, defense electronics, and communications equipment.

Working Principle

TO understand the working principle of the TS7812CZ C0G, one must first understand how linear voltage regulators work in general. Linear voltage regulators regulate an output voltage by comparing it to a reference voltage and then controlling the output current to produce the desired result. The reference voltage is typically set by an internal feedback loop, and the current is controlled by a control element such as a field-effect transistor (FET) or bipolar transistor.

In the case of the TS7812CZ C0G, the internal reference voltage is set to a constant 3.3V, so that any input voltage above 3.3V will result in a stable output voltage of 3.3V. This is accomplished by a built-in high-gain operational amplifier, whose operational voltage is trimmed for maximum accuracy during production. The operational amplifier acts as a voltage comparator, comparing the input voltage to a reference voltage and controlling an internal FET switch to regulate the output voltage in the desired level.

Protection Features

In addition to its compact size and stable output voltage, the TS7812CZ C0G also offers several protection features that make it suitable for a wide range of applications. It provides both overload and thermal shutdown protection, and it also includes a power-on reset circuit. This helps to protect the regulator from damage due to overvoltage and fault conditions, as well as provide a clean power-on reset to ensure reliable system startup.

Conclusion

In summary, the TS7812CZ C0G is a versatile and reliable linear voltage regulator that can be used in a wide variety of applications. Its high-medium power rating, stable output voltage, and integrated protection features make it an ideal choice for industrial power supplies, computer systems, precision medical systems, defense electronics, and communications equipment.

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