它(ta)們(men)是一(yi)個新型(xing)完整系統級封裝(zhuang) μModule?  

系列中率先面市的器件，可支持一個高達 2A 的輸出充電電流。這兩款器件均提供了一種完整和高效的 1MHz 開關降壓型充電器解(jie)決方案，只需使用一(yi)個(ge)輸(shu)入電(dian)(dian)(dian)容器。LTM8061 具(ju)備有源輸(shu)入電(dian)(dian)(dian)流(liu)管理(li)功(gong)能，以避免電(dian)(dian)(dian)源軌電(dian)(dian)(dian)壓(ya)下降(jiang)并向負載(zai)輸(shu)送最(zui)大的(de)充(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)。LTM8062 可(ke)主動(dong)地管理(li)輸(shu)出充(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)，盡(jin)量增加從(cong)一(yi)個(ge)運用最(zui)大峰值功(gong)率跟蹤 (MPPT) 原理(li)的(de)太陽(yang)能電(dian)(dian)(dian)池所(suo)提供的(de)功(gong)率。LTM8061 和(he)(he) LTM8062 可(ke)在(zai) 4.95V 至 32V 的(de)輸(shu)入電(dian)(dian)(dian)壓(ya)范(fan)圍內(nei)運作，并支持預查驗、恒(heng)定電(dian)(dian)(dian)流(liu)和(he)(he)恒(heng)定電(dian)(dian)(dian)壓(ya)模式(shi)操作。準確度分別(bie)為 0.5% 和(he)(he) 0.75% 的(de)浮動(dong)電(dian)(dian)(dian)壓(ya)確保在(zai)充(chong)電(dian)(dian)(dian)操作終止 (由一(yi)個(ge)最(zui)小電(dian)(dian)(dian)流(liu)門限檢測或可(ke)調內(nei)部(bu)超時(shi)(shi)設定) 時(shi)(shi)實現最(zui)大的(de)能量存儲。

　　LTM8061特別適用于給鋰離子電池或鋰聚合物電池充電，并具有 4.1V、4.2V、8.2V 和 8.4V的浮動電壓。一個可在外部調節的浮動電壓使 LTM8062 能支持單節和多節鋰離子電池、鋰聚合物電池、磷酸鐵鋰電池 (LiFePO4) 和密封鉛(qian)酸 (SLA) 電池充(chong)電至 14.4V。

　　為(wei)(wei)了保持電(dian)(dian)(dian)(dian)池(chi)(chi)處于(yu)滿充(chong)電(dian)(dian)(dian)(dian)狀態，一旦電(dian)(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)(dian)壓(ya)降至比浮置電(dian)(dian)(dian)(dian)壓(ya)低 2.5% 時，LTM8061 和(he) LTM8062 就自動啟動再充(chong)電(dian)(dian)(dian)(dian)周(zhou)期(qi)。安全功(gong)能包括壞電(dian)(dian)(dian)(dian)池(chi)(chi)檢測(ce)和(he)具故(gu)障指示并適(shi)用(yong)(yong)(yong)于(yu) LED 的 NTC 電(dian)(dian)(dian)(dian)阻(zu)器輸入。當(dang)電(dian)(dian)(dian)(dian)源不存在時，內部輸入反向電(dian)(dian)(dian)(dian)壓(ya)隔離二(er)極管可用(yong)(yong)(yong)來防(fang)止電(dian)(dian)(dian)(dian)池(chi)(chi)的泄漏電(dian)(dian)(dian)(dian)流。LTM8061 和(he) LTM8062 采用(yong)(yong)(yong) RoHS 兼容(rong)的 9mm x 15mm x 4.32mm LGA 封裝(zhuang)，千片(pian)批購價(jia)分別為(wei)(wei)每片(pian) 8.85 美元(yuan)(yuan)和(he) 9.85 美元(yuan)(yuan)。

照片說明： 2A 微型模塊電池充電器

性(xing)能概要：LTM8061 和 LTM8062

　　?采用 9mm x 15mm x 4.32mm LGA 封裝的完整 1MHz 系統級封裝降壓型電池充電器

　　?4.95V 至 32V DC (40V 絕對最(zui)大值) 工作輸入(ru)電壓(ya)范圍

　　?高達 2A 的(de)可調充電(dian)電(dian)流 (LTM8061)

　　?預查驗(yan)、恒(heng)定電流、恒(heng)定電壓充電

　　?內(nei)部最小電流或(huo)超時充電終止

　　?固(gu)定(ding) 4.1V、4.2V、8.2V、8.4V 電池浮置電壓 (LTM8061)

　　?高(gao)達 14.4V 的可調電池浮置電壓(ya) (LTM8062)