它們是一個新(xin)型完整(zheng)系(xi)統(tong)級封裝 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，只需使用一個輸入電(dian)(dian)容器。LTM8061 具(ju)備有源(yuan)輸入電(dian)(dian)流(liu)管(guan)理(li)功能，以(yi)避免電(dian)(dian)源(yuan)軌電(dian)(dian)壓(ya)(ya)下降并向(xiang)負(fu)載輸送最(zui)大的(de)充(chong)電(dian)(dian)電(dian)(dian)流(liu)。LTM8062 可(ke)(ke)主動地管(guan)理(li)輸出充(chong)電(dian)(dian)電(dian)(dian)流(liu)，盡量(liang)(liang)增加從(cong)一個運用最(zui)大峰(feng)值功率(lv)跟蹤 (MPPT) 原理(li)的(de)太陽能電(dian)(dian)池所(suo)提(ti)供(gong)的(de)功率(lv)。LTM8061 和(he) LTM8062 可(ke)(ke)在 4.95V 至 32V 的(de)輸入電(dian)(dian)壓(ya)(ya)范圍內(nei)(nei)運作(zuo)，并支(zhi)持預查驗、恒定電(dian)(dian)流(liu)和(he)恒定電(dian)(dian)壓(ya)(ya)模式(shi)操作(zuo)。準確(que)(que)度分別為 0.5% 和(he) 0.75% 的(de)浮動電(dian)(dian)壓(ya)(ya)確(que)(que)保(bao)在充(chong)電(dian)(dian)操作(zuo)終止 (由(you)一個最(zui)小(xiao)電(dian)(dian)流(liu)門限檢測(ce)或可(ke)(ke)調內(nei)(nei)部超(chao)時設定) 時實(shi)現最(zui)大的(de)能量(liang)(liang)存儲(chu)。

　　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(he)密封鉛(qian)酸 (SLA) 電池充電至 14.4V。

　　為(wei)了保持電(dian)(dian)(dian)(dian)(dian)池處(chu)于(yu)滿充電(dian)(dian)(dian)(dian)(dian)狀態，一旦電(dian)(dian)(dian)(dian)(dian)池電(dian)(dian)(dian)(dian)(dian)壓降至比浮置電(dian)(dian)(dian)(dian)(dian)壓低(di) 2.5% 時(shi)，LTM8061 和 LTM8062 就自動啟動再充電(dian)(dian)(dian)(dian)(dian)周期。安全功能包括壞電(dian)(dian)(dian)(dian)(dian)池檢測和具故障指示并適用(yong)于(yu) LED 的 NTC 電(dian)(dian)(dian)(dian)(dian)阻器輸入(ru)(ru)。當電(dian)(dian)(dian)(dian)(dian)源(yuan)不(bu)存在時(shi)，內部輸入(ru)(ru)反(fan)向電(dian)(dian)(dian)(dian)(dian)壓隔離二極(ji)管可用(yong)來防(fang)止電(dian)(dian)(dian)(dian)(dian)池的泄(xie)漏電(dian)(dian)(dian)(dian)(dian)流(liu)。LTM8061 和 LTM8062 采用(yong) RoHS 兼容的 9mm x 15mm x 4.32mm LGA 封裝，千片(pian)(pian)批購價(jia)分別為(wei)每(mei)片(pian)(pian) 8.85 美元(yuan)和 9.85 美元(yuan)。

照片說明： 2A 微型模塊電池充電器

性能概要：LTM8061 和(he) 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(zhi)) 工作輸入電(dian)壓范(fan)圍

　　?高(gao)達 2A 的可調充電電流 (LTM8061)

　　?預(yu)查(cha)驗(yan)、恒定(ding)電(dian)(dian)流、恒定(ding)電(dian)(dian)壓充電(dian)(dian)

　　?內部(bu)最小(xiao)電流或(huo)超(chao)時(shi)充(chong)電終(zhong)止

　　?固定 4.1V、4.2V、8.2V、8.4V 電池(chi)浮置電壓 (LTM8061)

　　?高達 14.4V 的可調電(dian)池(chi)浮置電(dian)壓 (LTM8062)