Stand-Alone, Switch-Mode Li Battery Charger with Internal 14V Switch

文件：218.32 Kbytes 页数：17 Pages

Maxim

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Fully Assembled and Tested

文件：153.71 Kbytes 页数：5 Pages

Maxim

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Stand-Alone, Switch-Mode Li Battery Charger with Internal 14V Switch

文件：828.96 Kbytes 页数：17 Pages

Maxim

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独立的开关模式Li+电池充电器，内置14V开关

MAX1757是一款开关模式锂离子电池充电器，可为一到三节电池充电。它提供精度达±10%的调节充电电流和稳压电压，电池端子处的总电压误差仅为±0.8%。内部高侧开关提供高达1.5A的可编程电流来为电池充电。一旦达到可调的时间限制，内置的安全定时器即会自动终止充电。\n\n MAX1757使用两个环路调节电压设定点和充电电流，这两个环路协同工作以在电压和电流调节之间平稳转换。通过一个额外的控制环路监控从输入源（充电+系统）汲取的总电流，并通过自动降低电池充电电流，防止输入电源过载并支持使用低成本的壁式适配器。\n\n 每节电池的调节电压使用标准的1%电 • 独立充电器可为多达三节锂离子电池安全充电\n• 连续电压和温度监控\n\n• 输入电流限制\n\n• 电池调节电压精度：±0.8%\n\n• 可编程充电电流高达1.5A\n\n\n\n\n• 低功耗可延长电池使用时间\n• 关断电池电流：0.1µA\n\n• 低压差98%占空比\n\n\n\n\n• 灵活的输入电压范围支持使用低成本的壁式适配器\n• 输入电压高达14V\n\n• 为接近耗尽的电池预充电\n\n\n\n\n• 固定300kHz PWM振荡器可有效过滤噪声\n\n• 28引脚SSOP封装可节省电路板空间;

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4.5V to 60V, 300mA, Ultra Small, High- Efficiency Synchronous Step-Down DC-DC Converters

Product Highlights • Reduces External Components and Total Cost • No Schottky—Synchronous Operation • Internal Compensation • Internal Soft-Start • All-Ceramic Capacitors, Ultra-Compact Layout • Flexibility to Support Multiple Rails in a System • Wide 4.5V to 60V Input Voltage Range • Fixe

文件：3.07353 Mbytes 页数：29 Pages

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亚德诺

4.5V to 60V, 300mA, Ultra Small, High- Efficiency Synchronous Step-Down DC-DC Converters

Product Highlights • Reduces External Components and Total Cost • No Schottky—Synchronous Operation • Internal Compensation • Internal Soft-Start • All-Ceramic Capacitors, Ultra-Compact Layout • Flexibility to Support Multiple Rails in a System • Wide 4.5V to 60V Input Voltage Range • Fixe

文件：3.07353 Mbytes 页数：29 Pages

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亚德诺

4.5V to 60V, 300mA, Ultra Small, High- Efficiency Synchronous Step-Down DC-DC Converters

Product Highlights • Reduces External Components and Total Cost • No Schottky—Synchronous Operation • Internal Compensation • Internal Soft-Start • All-Ceramic Capacitors, Ultra-Compact Layout • Flexibility to Support Multiple Rails in a System • Wide 4.5V to 60V Input Voltage Range • Fixe

文件：3.07353 Mbytes 页数：29 Pages

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亚德诺

4.5V to 60V, 300mA, Ultra Small, High- Efficiency Synchronous Step-Down DC-DC Converters

Product Highlights • Reduces External Components and Total Cost • No Schottky—Synchronous Operation • Internal Compensation • Internal Soft-Start • All-Ceramic Capacitors, Ultra-Compact Layout • Flexibility to Support Multiple Rails in a System • Wide 4.5V to 60V Input Voltage Range • Fixe

文件：3.07353 Mbytes 页数：29 Pages

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亚德诺

4.5V to 60V, 300mA, Ultra Small, High- Efficiency Synchronous Step-Down DC-DC Converters

Product Highlights • Reduces External Components and Total Cost • No Schottky—Synchronous Operation • Internal Compensation • Internal Soft-Start • All-Ceramic Capacitors, Ultra-Compact Layout • Flexibility to Support Multiple Rails in a System • Wide 4.5V to 60V Input Voltage Range • Fixe

文件：3.07353 Mbytes 页数：29 Pages

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亚德诺

4.5V to 60V, 300mA, Ultra Small, High- Efficiency Synchronous Step-Down DC-DC Converters

Product Highlights • Reduces External Components and Total Cost • No Schottky—Synchronous Operation • Internal Compensation • Internal Soft-Start • All-Ceramic Capacitors, Ultra-Compact Layout • Flexibility to Support Multiple Rails in a System • Wide 4.5V to 60V Input Voltage Range • Fixe

文件：3.07353 Mbytes 页数：29 Pages

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