DC2134A, DEMO BOARD, BATTERY CHARGER
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The DC2134A is a Demonstration Circuit for LTC4020 battery charger. The demonstration circuit 2134A is a high power buck-boost multi-chemistry battery charger featuring the LTCR4020. The board will accept an input voltage between 15V and 55V. The float voltage of the battery output (BAT) is 25.2V, with 6.3A maximum charge current. The converter output (VOUT) has a voltage range of 21V to 28V, with 8A maximum load current. The LTC4020 contains a high efficiency synchronous buck-boost DC/DC controller and uses a proprietary average current mode architecture. The LTC4020 battery charger can provide a constant current/constant-voltage charge algorithm (JP1: CC/CV, with mode pin grounded), constant-current charging (JP1: CC, with mode pin floated) or charging with an optimized 4-step, 3-stage lead-acid battery charge profile (JP1: lead-acid, with mode pin connected to INTVCC).
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