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

文件：218.32 Kbytes 頁數(shù)：17 Pages

MAXIM

美信

Fully Assembled and Tested

文件：153.71 Kbytes 頁數(shù)：5 Pages

MAXIM

美信

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

文件：828.96 Kbytes 頁數(shù)：17 Pages

MAXIM

美信

獨(dú)立的開關(guān)模式Li+電池充電器，內(nèi)置14V開關(guān)

MAX1757是一款開關(guān)模式鋰離子電池充電器，可為一到三節(jié)電池充電。它提供精度達(dá)±10%的調(diào)節(jié)充電電流和穩(wěn)壓電壓，電池端子處的總電壓誤差僅為±0.8%。內(nèi)部高側(cè)開關(guān)提供高達(dá)1.5A的可編程電流來為電池充電。一旦達(dá)到可調(diào)的時(shí)間限制，內(nèi)置的安全定時(shí)器即會自動終止充電。\n\n MAX1757使用兩個環(huán)路調(diào)節(jié)電壓設(shè)定點(diǎn)和充電電流，這兩個環(huán)路協(xié)同工作以在電壓和電流調(diào)節(jié)之間平穩(wěn)轉(zhuǎn)換。通過一個額外的控制環(huán)路監(jiān)控從輸入源（充電+系統(tǒng)）汲取的總電流，并通過自動降低電池充電電流，防止輸入電源過載并支持使用低成本的壁式適配器。\n\n 每節(jié)電池的調(diào)節(jié)電壓使用標(biāo)準(zhǔn)的1%電 ? 獨(dú)立充電器可為多達(dá)三節(jié)鋰離子電池安全充電\n? 連續(xù)電壓和溫度監(jiān)控\n\n? 輸入電流限制\n\n? 電池調(diào)節(jié)電壓精度：±0.8%\n\n? 可編程充電電流高達(dá)1.5A\n\n\n\n\n? 低功耗可延長電池使用時(shí)間\n? 關(guān)斷電池電流：0.1μA\n\n? 低壓差98%占空比\n\n\n\n\n? 靈活的輸入電壓范圍支持使用低成本的壁式適配器\n? 輸入電壓高達(dá)14V\n\n? 為接近耗盡的電池預(yù)充電\n\n\n\n\n? 固定300kHz PWM振蕩器可有效過濾噪聲\n\n? 28引腳SSOP封裝可節(jié)省電路板空間;

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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 頁數(shù)：29 Pages

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亞德諾

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 頁數(shù)：29 Pages

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亞德諾

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 頁數(shù)：29 Pages

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亞德諾

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 頁數(shù)：29 Pages

AD

亞德諾

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 頁數(shù)：29 Pages

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亞德諾

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 頁數(shù)：29 Pages

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亞德諾