凌特(te)公司（Linear Technology）推出集成了微(wei)功率比較器(qi)(qi)的(de)(de)緊(jin)湊型獨立線(xian)性(xing)單節(jie)(jie)鋰離(li)子電(dian)(dian)池充(chong)(chong)電(dian)(dian)器(qi)(qi) LTC4062。它具有保證充(chong)(chong)電(dian)(dian)安全性(xing)的(de)(de)多種先進(jin)功能、更(geng)高的(de)(de)充(chong)(chong)電(dian)(dian)終止靈活性(xing)、更(geng)詳細的(de)(de)狀(zhuang)態報(bao)告和更(geng)長的(de)(de)電(dian)(dian)池壽命(ming)等特(te)性(xing)。在(zai)安全性(xing)方(fang)面，LTC4062 具有可(ke)(ke)調節(jie)(jie)的(de)(de)充(chong)(chong)電(dian)(dian)終止計時器(qi)(qi)和防(fang)止電(dian)(dian)池過充(chong)(chong)電(dian)(dian)的(de)(de)精(jing)確(que)浮動電(dian)(dian)壓。為消除過熱(re)風險的(de)(de)同時以最(zui)高速(su)度(du)充(chong)(chong)電(dian)(dian)，獲(huo)得專利的(de)(de)熱(re)調節(jie)(jie)電(dian)(dian)路(lu)可(ke)(ke)保持(chi) LTC4062 的(de)(de)結(jie)溫處(chu)于安全水平。此外，I/O 引腳(jiao)可(ke)(ke)在(zai)絹流充(chong)(chong)電(dian)(dian)、正常充(chong)(chong)電(dian)(dian)和充(chong)(chong)電(dian)(dian)結(jie)束模式時報(bao)告充(chong)(chong)電(dian)(dian)狀(zhuang)態。

　　LTC4062 集成了精確的微功(gong)率比較(jiao)器。這是一個非專用(yong)(yong)比較(jiao)器并具有通用(yong)(yong)輸入和開漏輸出，能夠(gou)用(yong)(yong)于低(di)電池電量檢測(ce)或精確輸入電壓(ya)檢測(ce)等(deng)方面(mian)。

LTC4062 通過其 Smart StartTM 功(gong)能(neng)去除(chu)了(le)不必(bi)要的(de)再充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)周期，從(cong)(cong)而(er)延長了(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)壽命。因為(wei)(wei)頻繁(fan)的(de)再充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)會(hui)(hui)降低(di)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)容量并縮短電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)壽命，所以(yi)當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源第一次(ci)加到該充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)上時(shi)，如果電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓高(gao)于 4.1V，那 Smart Start 功(gong)能(neng)就會(hui)(hui)阻(zu)止新的(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)周期啟動(dong)。該集成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)還具有一些(xie)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)終止方式，這(zhe)包括用(yong)戶可(ke)調(diao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)和充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)間(jian)、外(wai)部(bu)數(shu)字(zi)控制或(huo)(huo)自動(dong) C/10。LTC4062 采(cai)用(yong) 3mm x 3mm DFN 封裝，非常適(shi)合于從(cong)(cong)墻上適(shi)配器(qi)或(huo)(huo) USB 對(dui) MP3 播放器(qi)、數(shu)碼(ma)相機(ji)、PDA 和蜂窩電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)話(hua)中的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)。　　LTC4062 能(neng)以(yi) ±0.35% 的(de)準確度(du)將鋰離子電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)至(zhi) 4.2V 浮動(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓。該器(qi)件無需外(wai)部(bu)檢測電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)、MOSFET 或(huo)(huo)隔(ge)離二級(ji)管，極大地(di)簡化(hua)了(le)設計(ji)。此外(wai)，LTC4062 具有軟啟動(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)，以(yi)最大限度(du)地(di)減小開始充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)時(shi)的(de)浪涌電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)。就通過 USB 的(de)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)而(er)言(yan)，USB 控制器(qi)的(de)邏輯引腳可(ke)以(yi)按照低(di)功(gong)率或(huo)(huo)高(gao)功(gong)率選擇充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，從(cong)(cong)而(er)消除(chu)對(dui)外(wai)部(bu)分立(li)組件的(de)依賴。在充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)周期的(de)任(ren)一時(shi)刻，LTC4062 都(dou)能(neng)關(guan)斷，從(cong)(cong)而(er)把(ba)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)漏電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)限制在低(di)于 2uA。　　LTC4062 采(cai)用(yong) 10 引線 3mm x 3mm DFN 封裝。以(yi) 1,000 片為(wei)(wei)單(dan)位(wei)批量購買(mai)，每片起價為(wei)(wei) 1.95 美元。　　性(xing)能(neng)概要：LTC4062　　? 充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)可(ke)編程至(zhi) 1A 的(de)獨立(li)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)

　　? 直接(jie)用 USB 端口對單節鋰離子電(dian)(dian)池充電(dian)(dian)

　　? 高浮動電(dian)壓準確度：±0.35%

　　? 用于電池電量監視或(huo) AC 存在檢測(ce)的(de)微功率比較器

　　? 熱(re)調節最大限度(du)地(di)提(ti)高(gao)充電(dian)速(su)度(du)，無過(guo)熱(re)風險(xian)

　　? 可編(bian)程充電電流(liu)檢測(ce)/終(zhong)止

　　? 可編程充電終止計時器

　　? SmartStart 充電(dian)算法延長電(dian)池(chi)壽命

　　? 智能脈(mo)沖故障指示功能

　　? 扁平(ping) 10 引(yin)線 DFN 封裝（3mm x 3mm x 0.75mm）