CHL8328-23CRT

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Part Status:	Last Time Buy

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CHL8328-23CRT Application Field and Working Principle

The CHL8328-23CRT is a high-performance switcher and is a member of the CHL series of power conversion products from Texas Instruments (TI). Put simply, it is a specialized voltage regulator that targets flexibility and reliability for industrial applications. It provides a wide range of input voltage and output current ratings, making it an excellent choice for many industrial applications. Understanding the device’s operating principles and application fields can help technicians make the right decisions when selecting voltage regulators or power supplies.

Application Field: The CHL8328-23CRT is designed to meet the wide variety of power requirements encountered in industrial applications, such as, process automation, printing and packaging, 3D printing and healthcare. The device is capable of supplying up to 23A output current at low voltage levels with high reliability, making it the ideal power solution for applications requiring continuous supplies of power.

Working Principle: The CHL8328-23CRT is a Switcher, which means that it utilizes a specialized switching-mode operation to regulate voltages and currents. A power cycle is completed in each switching cycle. During the cycle, an internal transistor is activated and injects charge into the output capacitor. The voltage across the capacitor ramps up until the output voltage is reached. Then the transistor is turned off and the charge flows back to the input, completing the circuit. As the load current changes, the internal transistor adjusts its pulsing width accordingly to maintain a constant voltage output.

The CHL8328-23CRT also features an adjustable Under-Voltage-Lockout (UVLO) enabled via an external resistor. The UVLO prevents the device from being powered up while the input voltage is below the pre-determined setpoint. This feature is especially important to avoid overloading or damaging the system. In addition, the device provides soft-start and current-limit functions to ensure safe and smooth operation.

Conclusion:

The CHL8328-23CRT is a high-performance switcher from TI and is best-suited for industrial applications. It is capable of delivering up to 23A output current and features an adjustable UVLO, making it a reliable and flexible voltage regulator for any application. Its operating principles involve a dedicated power cycle, in which an internal transistor injects charge into the output capacitor, thus creating a reliable constant voltage output.

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