BA17820T

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BA17820T Application Field and Working Principle

The BA17820T belongs to the Linear Voltage Regulators (PMIC) category. It is a variable output voltage linear regulator designed for automotive applications. It features built-in overcurrent protection and a temperature guard, providing a safe and efficient design for power system.

Features

• Input Voltage Range: 8.0V - 16V
• Output Voltage Range: 2.5V - 12.5V
• Output Current Capacity:Max 0.5A
• Load Regulation: 0.3%
• Operating Temperature Range: -40C - 100C

Applications:

• Automotive applications
• Portable device chargers
• Power switching regulators
• Battery chargers
• Voltage converters

Working Principle:

The BA17820T is a linear voltage regulator that converts an input voltage to a fixed output voltage. It works on the principle of an open loop amplifier and is basically a three terminal device with an active element that acts as a voltage divider to regulate the output voltage. When the voltage at the input terminal of the regulator increases, the feedback voltage is also increased, resulting in a decrease in the current provided to the load. Hence, the output voltage is regulated. The device also contains internal overload protection, which is activated when the current drawn from the regulator exceeds a certain threshold.

Advantages:

• Low cost
• Low noise output
• Low drop out voltage
• Low power dissipation
• High accuracy

Conclusion:

In conclusion, the BA17820T is an ideal choice for automotive applications. It offers a wide input voltage range, adjustable output voltage and current, and high accuracy. It also features built-in protection features like temperature guard and overcurrent protection, to ensure a safe and efficient design.

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