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，只需使用(yong)一(yi)個(ge)輸入(ru)電(dian)容器。LTM8061 具備有源輸入(ru)電(dian)流管(guan)理功能(neng)，以避免電(dian)源軌電(dian)壓下降并向負(fu)載(zai)輸送最大的充電(dian)電(dian)流。

    LTM8062 可主動地管理輸出充電(dian)(dian)電(dian)(dian)流，盡量增加從(cong)一(yi)個運用最(zui)(zui)大峰值功率跟蹤 (MPPT) 原理的太陽能電(dian)(dian)池所提供(gong)的功率。LTM8061 和(he) LTM8062 可在(zai) 4.95V 至 32V 的輸入(ru)電(dian)(dian)壓范圍內(nei)運作(zuo)(zuo)，并(bing)支持預查驗、恒定(ding)電(dian)(dian)流和(he)恒定(ding)電(dian)(dian)壓模式操作(zuo)(zuo)。準確度分別為(wei) 0.5% 和(he) 0.75% 的浮動電(dian)(dian)壓確保在(zai)充電(dian)(dian)操作(zuo)(zuo)終止(zhi) (由一(yi)個最(zui)(zui)小電(dian)(dian)流門(men)限檢測(ce)或可調內(nei)部超時設定(ding)) 時實現最(zui)(zui)大的能量存儲(chu)。

    LTM8061特別適用于給鋰離子電池或(huo)鋰(li)聚合物(wu)電(dian)池(chi)(chi)充電(dian)，并具有 4.1V、4.2V、8.2V 和 8.4V的浮動電(dian)壓。一個(ge)可(ke)在外部調節的浮動電(dian)壓使 LTM8062 能支持單節和多節鋰(li)離(li)子(zi)電(dian)池(chi)(chi)、鋰(li)聚合物(wu)電(dian)池(chi)(chi)、磷酸鐵鋰(li)電(dian)池(chi)(chi)(LiFePO4)和密(mi)封(feng)鉛(qian)酸 (SLA) 電(dian)池(chi)(chi)充電(dian)至 14.4V。

為了保持電(dian)(dian)(dian)(dian)(dian)池處于滿(man)充電(dian)(dian)(dian)(dian)(dian)狀態，一旦(dan)電(dian)(dian)(dian)(dian)(dian)池電(dian)(dian)(dian)(dian)(dian)壓(ya)降至比浮置電(dian)(dian)(dian)(dian)(dian)壓(ya)低 2.5% 時，LTM8061 和(he)(he)(he) LTM8062 就自(zi)動(dong)啟動(dong)再(zai)充電(dian)(dian)(dian)(dian)(dian)周期。安全功能包括(kuo)壞(huai)電(dian)(dian)(dian)(dian)(dian)池檢測和(he)(he)(he)具故障指示并適用(yong)于 LED 的(de) NTC 電(dian)(dian)(dian)(dian)(dian)阻器輸入。當電(dian)(dian)(dian)(dian)(dian)源不存(cun)在時，內(nei)部輸入反向電(dian)(dian)(dian)(dian)(dian)壓(ya)隔離二極管可用(yong)來(lai)防止電(dian)(dian)(dian)(dian)(dian)池的(de)泄漏電(dian)(dian)(dian)(dian)(dian)流。LTM8061 和(he)(he)(he) LTM8062 采用(yong) RoHS 兼容的(de) 9mm x 15mm x 4.32mm LGA 封裝，千片批(pi)購(gou)價分(fen)別為每片 8.85 美(mei)(mei)元和(he)(he)(he) 9.85 美(mei)(mei)元。