BCM59111KMLG

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The power output from Power Over Ethernet (PoE) controllers is of utmost importance since the voltages used in PoE installations need to be accurate for proper performance of PoE-enabled applications. The BCM59111KMLG is a device that provides integrated power over Ethernet (PoE) controllers for PoE-enabled applications such as access points, IP cameras, surveillance systems and other remote-terminal applications. It is designed to deliver highly efficient power delivery to the load and offer superior power performance, primary-side control, and low EMI.

Features

• Integrated Power Over Ethernet (PoE) Controllers
• High Efficient Output Voltage Regulation
• Shutdown Pin: Allows the Control Logic to Reset the Output Voltage to a Safe Value
• Primary Side Control
• Low EMI
• High Efficient Synchronous Rectification
• Adjustable Output Voltage
• Integrated Flag Pin
• Under Voltage Lockout
• Over Voltage Protection
• Passive FET Current Limit

Applications

• Access Points
• IP Cameras
• Surveillance Systems
• Other Remote-Terminal Applications

Working Principle

The BCM59111KMLG is a complete power management solution for PoE-enabled applications. It features integrated power over Ethernet (PoE) controllers that offer primary side control and low EMI. The device is capable of delivering highly efficient output voltage regulation and features a shutdown pin that allows the control logic to reset the output voltage to a safe value when the device is not in use. Additionally, the device features an adjustable output voltage setting, an integrated flag pin, an under voltage lockout, and an over voltage protection circuit.

The processing of power delivery starts with a power stage circuit which is incorporated in the device to protect against short circuit conditions. The BCM59111KMLG uses a synchronous rectification method to convert the incoming voltage from AC to DC and to provide high efficiency power conversion. The output voltage is adjusted through the voltage settings pin and the Flag pin is used to provide a signal to the load to confirm that the correct output voltage has been achieved. The power delivery is then sent through a low EMI filter which filters out high frequency noise generated during the conversion.

The BCM59111KMLG then passes the power through a passive FET current-limit circuit which provides a safe load current limit for the device to protect it from overloading. Additionally, the device features an under voltage lockout and an over voltage protection circuit, which ensures that the output voltage does not exceed a predetermined value.

In conclusion, the BCM59111KMLG is an integrated power over Ethernet (PoE) controller that provides an efficient and reliable power delivery solution for PoE-enabled applications. It features a high efficient output voltage regulation, a shutdown pin, primary side control, low EMI, a high efficient synchronous rectification, an adjustable output voltage setting, an integrated flag pin, an under voltage lockout, and an over voltage protection circuit. These features make the BCM59111KMLG an ideal solution for PoE-enabled applications such as access points, IP cameras, surveillance systems and other remote-terminal applications.

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