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MAX1647：与化学类型无关的电池充电控制器

SBS 2级智能电池充电器，带有SMBus接口

The MAX1647/MAX1648 provide the power control necessary to charge batteries of any chemistry. In the MAX1647, all charging functions are controlled through the Intel® System Management Bus (SMBus™) interface. The SMBus 2-wire serial interface sets the charge voltage and current, and provides thermal status information. The MAX1647 functions as a level 2 charger, compliant with the Duracell®/Intel Smart Battery Charger Specification. The MAX1648 omits the SMBus serial interface, and instead sets the charge voltage and current proportional to the voltage applied to external control pins. In addition to the feature set required for a level 2 charger, the MAX1647 generates interrupts to signal the host when power is applied to the charger or a battery is installed or removed. Additional status bits allow the host to check whether the charger has enough input voltage, and whether the voltage on or current into the battery is being regulated. This allows the host to determine when lithium-ion batteries have completed charge without interrogating the battery. The MAX1647 is available in a 20-pin SSOP with a 2mm profile height. The MAX1648 is available in a 16-pin SO package.

关键特性 Charges Any Battery Chemistry: Li-Ion, NiCd, NiMH, Lead Acid, etc. Intel SMBus 2-Wire Serial Interface (MAX1647) Intel/Duracell Level 2 Smart Battery Compliant (MAX1647) 4A, 2A, or 1A Maximum Battery-Charge Current 11-Bit Control of Charge Current Up to 18V Battery Voltage 10-Bit Control of Voltage ±0.75% Voltage Accuracy with External ±0.1% Reference Up to 28V Input Voltage Battery Thermistor Fail-Safe Protection

功能框图 产品应用 充电站 笔记本电脑 PDA及其它手持设备 电话

关键参数

数据手册DataSheet

技术资料

• New Developments in Battery Chargers
• Versatile ICs Enable Chemistry-Independent Battery Charging

质量和环境数据

• MAX1647.pdf

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