DC2134A

LINEAR TECHNOLOGY  DC2134A  演示板, LTC4020, 电池充电器

The 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.