LM5080 -- Modular Current Sharing Controller

The LM5080 is a simple and cost effective load share controller that provides all functions required to balance the currents delivered from multiple power converters operated in parallel. The LM5080 implements an average program (AP) method of active load share control which adjusts the output voltage of individual power stages either up or down to deliver nearly equal currents to a common load. The average program method improves stability and reduces the output voltage tolerance when compared to other common load sharing methods. The LM5080 supports two common applications for load sharing methods. The LM5080 supports two common applications for load share controllers: external control in which the load share circuit balances currents between separate power modules (bricks), and internal control where the load share circuit is integrated into the voltage regulation loop of each power converter module or circuit.

Features

1.       Average program current share method

2.       Single-wire star link current share bus

3.       No precision external resistors necessary 3V to 15V bias voltage range

4.       Adaptable for high or low side current sensing

5.       Flexible architecture sense adjustment

6.       Positive remote sense adjustment

7.       Trim or reference adjustment

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