凌力爾特公司(Linear Technology Corporation) 推出 LTM8061 和 LTM8062，這兩款器件已開始供貨，它們是一個新型完整系統級封裝 μModule?  充電器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決方案，只(zhi)需(xu)使(shi)用一(yi)個輸(shu)(shu)入電(dian)(dian)容(rong)器。LTM8061 具備(bei)有源輸(shu)(shu)入電(dian)(dian)流管(guan)理功能，以避免電(dian)(dian)源軌電(dian)(dian)壓下降并向負(fu)載輸(shu)(shu)送最大的充電(dian)(dian)電(dian)(dian)流。

    LTM8062 可主(zhu)動(dong)地(di)管理輸出充電(dian)(dian)(dian)電(dian)(dian)(dian)流，盡量(liang)(liang)增(zeng)加從一(yi)個運(yun)用最大峰值功(gong)率跟蹤(zong) (MPPT) 原(yuan)理的(de)(de)太(tai)陽能(neng)(neng)電(dian)(dian)(dian)池所提供的(de)(de)功(gong)率。LTM8061 和 LTM8062 可在 4.95V 至 32V 的(de)(de)輸入電(dian)(dian)(dian)壓范圍內(nei)運(yun)作(zuo)，并支持(chi)預查驗(yan)、恒定電(dian)(dian)(dian)流和恒定電(dian)(dian)(dian)壓模式操(cao)作(zuo)。準(zhun)確(que)度分別(bie)為 0.5% 和 0.75% 的(de)(de)浮動(dong)電(dian)(dian)(dian)壓確(que)保在充電(dian)(dian)(dian)操(cao)作(zuo)終(zhong)止(zhi) (由一(yi)個最小電(dian)(dian)(dian)流門限檢測或可調內(nei)部超(chao)時設定) 時實現最大的(de)(de)能(neng)(neng)量(liang)(liang)存儲。

    LTM8061特別適用于給鋰離子電池或鋰聚合(he)物(wu)電(dian)(dian)池充電(dian)(dian)，并具有(you) 4.1V、4.2V、8.2V 和(he)(he) 8.4V的(de)浮動電(dian)(dian)壓(ya)(ya)。一(yi)個(ge)可在外(wai)部調節的(de)浮動電(dian)(dian)壓(ya)(ya)使 LTM8062 能支持單(dan)節和(he)(he)多節鋰離子(zi)電(dian)(dian)池、鋰聚合(he)物(wu)電(dian)(dian)池、磷酸鐵(tie)鋰電(dian)(dian)池(LiFePO4)和(he)(he)密封鉛酸 (SLA) 電(dian)(dian)池充電(dian)(dian)至 14.4V。

為了保(bao)持電(dian)(dian)(dian)池處于滿充電(dian)(dian)(dian)狀態，一旦電(dian)(dian)(dian)池電(dian)(dian)(dian)壓(ya)降至比(bi)浮(fu)置(zhi)電(dian)(dian)(dian)壓(ya)低 2.5% 時，LTM8061 和 LTM8062 就(jiu)自(zi)動(dong)啟(qi)動(dong)再充電(dian)(dian)(dian)周期(qi)。安全(quan)功能包括(kuo)壞(huai)電(dian)(dian)(dian)池檢測和具故障(zhang)指示并適用于 LED 的(de) NTC 電(dian)(dian)(dian)阻器輸入。當(dang)電(dian)(dian)(dian)源不存在時，內部(bu)輸入反向電(dian)(dian)(dian)壓(ya)隔(ge)離二極管可用來防(fang)止電(dian)(dian)(dian)池的(de)泄漏電(dian)(dian)(dian)流。LTM8061 和 LTM8062 采用 RoHS 兼容(rong)的(de) 9mm x 15mm x 4.32mm LGA 封裝，千片批購價分別為每片 8.85 美元和 9.85 美元。