LINEAR TECHNOLOGY - 1 LTC1759 数据手册

The LTC ®1759 Smart Battery Charger is a single chip charging solution that dramatically simplifies construc- tion of an SBS compliant system. The LTC1759 imple- ments a Level 2 charger function whereby the charger can be programmed by the battery or by the host. A thermistor on the battery being charged is monitored for tempera- ture, connectivity and battery type information. The SMBus interface remains alive when the AC power adapter is removed and responds to all SMBus activity directed to it, including thermistor status (via the ChargerStatus com- mand). The charger also provides an interrupt to the host whenever a status change is detected (e.g., battery removal, AC adapter connection). Charging current and voltage are restricted to chemistry specific limits for improved system safety and reliability. Limits are programmable by two external resistors. Addi- tionally, the maximum average current from the AC adapter is programmable to avoid overloading the adapter when simultaneously supplying load current and charging cur- rent. When supplying system load current, charging cur- rent is automatically reduced to prevent adapter overload.

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厂商: LINEAR

文件类型: PDF

文件大小: 291 KB

文件校验: 8860877CC8C2ADE7475989371BDEB48F

上传时间: 2012-05-09 09:41:00

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