CHL8326-01CRT

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The CHL8326-01CRT from Richtek is a power management product that combines Buck-Boost DC/DC controller, system PWM controller, overcurrent and overvoltage protection, and dual output management with power switches in a single package. This product is especially designed for the application of industrial control, converter and POE management, and is classified under PMIC (Power Management Integrated Circuit) - Voltage Regulators - DC DC Switching Controllers.

The CHL8326-01CRT is a single chip solution that provides very high integration with all the features mentioned above packed into a single package. The built-in over current protection (OCH-FET), MOSFET drivers, 3.2V start up voltage and 6V detector voltage, make the CHL8326-01CRT a very robust and reliable product for the challenging conditions that are encountered in industrial applications. It has a wide input voltage range of 4.5V to 40V and an operating temperature range of -40°C to +105°C.

In terms of its working principle, the CHL8326-01CRT is an ideal solution for enhanced system voltage stability, low switching noise and conservation of energy. It works on the principle of a buck-boost converter with a DC/DC controller. The input voltage is first rectified and then the output voltage is regulated via the output voltage sense circuit. The voltage sense circuit will monitor the output voltage and the buck-boost inductor will be adjusted accordingly. The CHL8326-01CRT also has two power switches, one for energy saving and one for over current protection, both of which are triggered by the driver from the controller.

The CHL8326-01CRT also provides an array of other features for improved performance and safety. These features include a low voltage start up (3.2V) and protection against hiccup mode upon start up for improved system protection. It also has an overvoltage protection (OVP) which will detect any overvoltage and reduce it to a safe level, ensuring optimal system voltage and preventing damage. The CHL8326-01CRT also has an adjustable Hiccup current limit and adjustable current limit function to ensure current is maintained at safe levels and overcurrent protection is triggered at the right time. In addition, the dual output control feature offers increased system flexibility by allowing users to adjust the current levels of two separate output voltages.

Overall, the Richtek CHL8326-01CRT is an ideal single chip solution for industrial applications such as POE management, converter and industrial control. It is classified under PMIC (Power Management Integrated Circuit) - Voltage Regulators - DC DC Switching Controllers, and provides improved voltage stability, low switching noise and energy conservation. Its wide input voltage range, -40℃ to 105℃ operating temperature range, over current protection, overvoltage protection and dual output control provide improved performance and safety. All these features make the CHL8326-01CRT an invaluable component in modern power management.

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