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(xi)列(lie)中率先面市的(de)器(qi)(qi)(qi)件，可支持一(yi)(yi)個高達 2A 的(de)輸出充(chong)電(dian)(dian)電(dian)(dian)流。這兩款(kuan)器(qi)(qi)(qi)件均(jun)提供了一(yi)(yi)種完(wan)整和高效的(de) 1MHz 開關降(jiang)壓型充(chong)電(dian)(dian)器(qi)(qi)(qi)解決方(fang)案，只需使用(yong)一(yi)(yi)個輸入電(dian)(dian)容器(qi)(qi)(qi)。LTM8061 具備有源輸入電(dian)(dian)流管(guan)理功(gong)能(neng)，以避免電(dian)(dian)源軌電(dian)(dian)壓下降(jiang)并向負載輸送最大的(de)充(chong)電(dian)(dian)電(dian)(dian)流。

    LTM8062 可(ke)(ke)主動地管理輸出(chu)充(chong)電(dian)(dian)電(dian)(dian)流(liu)(liu)，盡量增加(jia)從(cong)一(yi)個運用最(zui)大峰值功(gong)率(lv)跟(gen)蹤 (MPPT) 原理的(de)(de)太陽能電(dian)(dian)池(chi)所提供的(de)(de)功(gong)率(lv)。LTM8061 和 LTM8062 可(ke)(ke)在 4.95V 至 32V 的(de)(de)輸入電(dian)(dian)壓(ya)范圍(wei)內運作(zuo)，并支持(chi)預(yu)查(cha)驗、恒(heng)定電(dian)(dian)流(liu)(liu)和恒(heng)定電(dian)(dian)壓(ya)模(mo)式操作(zuo)。準(zhun)確度分別為(wei) 0.5% 和 0.75% 的(de)(de)浮動電(dian)(dian)壓(ya)確保在充(chong)電(dian)(dian)操作(zuo)終止 (由一(yi)個最(zui)小電(dian)(dian)流(liu)(liu)門限檢測或可(ke)(ke)調內部超時設定) 時實現最(zui)大的(de)(de)能量存儲。

    LTM8061特別適用于給鋰離子電池或鋰聚合(he)物電(dian)池(chi)充電(dian)，并具有 4.1V、4.2V、8.2V 和 8.4V的浮動(dong)電(dian)壓(ya)。一個可在外部調(diao)節的浮動(dong)電(dian)壓(ya)使 LTM8062 能支持(chi)單(dan)節和多節鋰離(li)子電(dian)池(chi)、鋰聚合(he)物電(dian)池(chi)、磷酸(suan)(suan)鐵鋰電(dian)池(chi)(LiFePO4)和密封(feng)鉛酸(suan)(suan) (SLA) 電(dian)池(chi)充電(dian)至 14.4V。

為(wei)了保持電(dian)(dian)(dian)(dian)(dian)池(chi)處(chu)于滿充(chong)電(dian)(dian)(dian)(dian)(dian)狀(zhuang)態，一旦(dan)電(dian)(dian)(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)(dian)(dian)壓(ya)降(jiang)至比浮置電(dian)(dian)(dian)(dian)(dian)壓(ya)低 2.5% 時(shi)，LTM8061 和 LTM8062 就自動啟動再充(chong)電(dian)(dian)(dian)(dian)(dian)周期。安(an)全(quan)功能包(bao)括壞(huai)電(dian)(dian)(dian)(dian)(dian)池(chi)檢測和具(ju)故(gu)障指示(shi)并適(shi)用(yong)(yong)于 LED 的 NTC 電(dian)(dian)(dian)(dian)(dian)阻(zu)器(qi)輸(shu)入。當電(dian)(dian)(dian)(dian)(dian)源(yuan)不(bu)存(cun)在時(shi)，內(nei)部輸(shu)入反向電(dian)(dian)(dian)(dian)(dian)壓(ya)隔離二極(ji)管可(ke)用(yong)(yong)來防止電(dian)(dian)(dian)(dian)(dian)池(chi)的泄漏電(dian)(dian)(dian)(dian)(dian)流。LTM8061 和 LTM8062 采(cai)用(yong)(yong) RoHS 兼容的 9mm x 15mm x 4.32mm LGA 封裝，千(qian)片(pian)批購價分別為(wei)每片(pian) 8.85 美元和 9.85 美元。