MC7806CTG

MC7806CTG Application Field and Working Principle

The MC7806CTG is an adjustable, extended version of the popular MC7806CT voltage regulator from ON Semiconductor. It is a linear voltage regulator that is capable of providing up to 1.5A of current, suitable for a wide range of applications. The MC7806CTG is designed for use in automotive, industrial, and consumer applications, as it is small in size and efficient, meaning it is well-suited to meet the increasing demand of portable devices and energy-saving applications.

Features:

• High Output current up to 1.5A
• Wide Input Voltage Range of 9V to 40V
• Integrated Over-Temperature Protection
• Highly Accurate Output Voltage
• Tiny SOT223-5 Package

Applications:

• Automotive Electronics
• Household Appliances
• Consumer Electronics
• Industrial Electronics
• Medical Electronics

Working Principle:

The MC7806CTG linear voltage regulator is designed to provide a regulated output voltage from an input voltage that ranges from 9V to 40V. It has an adjustable output voltage range from 1.25V to 37V and can provide up to 1.5A of output current. The device operates by comparing the voltage at the regulating terminal, the output voltage, to a reference voltage on the reference terminal. The reference voltage is set using an external resistor network connected between the reference and the adjust terminals. When the output voltage is higher than the reference voltage, the internal error amplifier reduces the power supply current and thus reduces the output voltage. Conversely, when the output voltage is lower than the reference voltage, more power supply current is allowed to flow through, increasing the output voltage.

In order to protect the device from over-temperature conditions, the MC7806CTG is equipped with an internal overtemperature circuit. This decreases the output current to ensure that the temperature of the device does not exceed its safe operating rating. It also has short-circuit protection to prevent the device from being damaged in the event of an overload.

Conclusion:

The MC7806CTG linear voltage regulator is a small and efficient device that is suitable for a wide range of applications. It has adjustable output voltage, high output current, and integrated over-temperature protection, making it well-suited to meet the increasing demand of portable devices and energy-saving applications. The working principle is based on an internal error amplifier that compares an external reference voltage to the output voltage to regulate the output voltage.