CHL8325A-04CRT

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CHL8325A-04CRT is a DC-DC switching controller designed by CHL. It is a voltage regulator unit used in PMIC (Power Management ICs) series. Regulated DC output voltages can be realized by controlling ON and OFF time of a specific voltage supply.

Applications

CHL8325A-04CRT’s application fields include but not limited to:

• Telephone battery powered applications
• Wireless communication systems
• PDAs
• Notebook computers
• Automotive applications

Features

The features of CHL8325A-04CRT are as follows:

• Positive or negative logic
• Voltage step-down/step-up range of 8V to 22V
• Output current regulation up to 200mA
• Ripple reduction and noise elimination
• Over voltage protection
• Over current protection
• Over temperature protection
• Fast response time
• High efficiency and low dissipation

Working Principle

The CHL8325A-04CRT uses pulse width modulation to regulate output voltage. The output voltage is regulated by controlling the ON and OFF times of the voltage supply. As the voltage supply increases, the ON times increases, thus increasing the proportion of output voltage. In case of drop in the input voltage, the output voltage is reduced. On the other hand, when the input voltage increases, the output voltage rises; and vice versa when the input voltage decreases.

The CHL8325A-04CRT has fast response time. It can quickly adjust the output voltage according to the changes in input voltage, thus minimizing voltage ripple and noise.

The CHL8325A-04CRT also provides protection from over-voltage, over-current and over-temperature. This ensures safe and reliable operation of the device even under extreme conditions.

In conclusion, CHL8325A-04CRT is a versatile and powerful DC-DC switching controller designed for a variety of applications. Its efficient voltage regulation and protection features make it an ideal choice for power management in today’s demanding environment.

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