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UC3902 - LOAD SHARE CONTROLLER

General Description

The UC3902 load share controller is an 8-pin device that balances the current drawn from independent, paralleled power supplies.

Load sharing is accomplished by adjusting each supplies’ output current to a level proportional to the voltage on a share bus.

Key Features

  • D 2.7-V to 20-V Operation D 8-Pin Package D Requires Minimum Number of External Components D Compatible with Existing Power Supply Designs Incorporating Remote Output Voltage Sensin D Differential Share Bus D Precision Current Sense Amplifier (40 Gain) D UVLO (Undervoltage Lockout) Circuitry D User Programmable Share Loop Compensation.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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UC2902 UC3902 SLUS232E − DECEMBER 19, 2002 − REVISED JULY 2011 LOAD SHARE CONTROLLER FEATURES D 2.7-V to 20-V Operation D 8-Pin Package D Requires Minimum Number of External Components D Compatible with Existing Power Supply Designs Incorporating Remote Output Voltage Sensin D Differential Share Bus D Precision Current Sense Amplifier (40 Gain) D UVLO (Undervoltage Lockout) Circuitry D User Programmable Share Loop Compensation APPLICATIONS D Paralelled Power Supplies DESCRIPTION The UC3902 load share controller is an 8-pin device that balances the current drawn from independent, paralleled power supplies. Load sharing is accomplished by adjusting each supplies’ output current to a level proportional to the voltage on a share bus.