Maxim推出線性電池充電器MAX8895，器件適用于符合USB電池充電規范(1.1版本)的Bluetooth耳機和便攜設備。MAX8895獨特地集成了自動適配器檢測功能，可分辨USB設備、USB充電器和專用充電器。器件(jian)還(huan)具有USB枚(mei)舉功能，可(ke)自動與USB主(zhu)機進行交互，無需處理器干預即可(ke)優化(hua)充(chong)電(dian)電(dian)流。該功能無需使用(yong)單(dan)獨的(de)(de)微控制(zhi)器和系(xi)統(tong)軟件(jian)，因而可(ke)提(ti)供業內僅有的(de)(de)單(dan)機運行充(chong)電(dian)方案。

　　智(zhi)能電(dian)(dian)(dian)源(yuan)選擇器(Smart Power Selector)能夠實現USB電(dian)(dian)(dian)源(yuan)輸入(ru)(VBUS)至電(dian)(dian)(dian)池(chi)(chi)和系統負載(zai)的(de)電(dian)(dian)(dian)源(yuan)無縫分配(pei)。該(gai)特性允許(xu)(xu)在為系統供(gong)電(dian)(dian)(dian)的(de)同時對電(dian)(dian)(dian)池(chi)(chi)充(chong)電(dian)(dian)(dian)，也允許(xu)(xu)便(bian)攜設備在電(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)量耗盡或沒有(you)電(dian)(dian)(dian)池(chi)(chi)的(de)情況下工(gong)作。當(dang)系統負載(zai)超出VBUS輸入(ru)電(dian)(dian)(dian)流限制時，電(dian)(dian)(dian)池(chi)(chi)還可為VBUS供(gong)電(dian)(dian)(dian)。

　　MAX8895內置電池斷開開關、電流檢測電路、熱調節電路、MOSFET調整管以及高達16V的過壓保護(OVP)，可提供易于應用、極為緊湊的充電器方案(an)。此外，還可靈活設置快充(chong)(chong)電(dian)(dian)流、終止(zhi)電(dian)(dian)流和充(chong)(chong)電(dian)(dian)定(ding)時(shi)(shi)器(qi)(qi)持續時(shi)(shi)間。MAX8895還支持自適應電(dian)(dian)池充(chong)(chong)電(dian)(dian)，必要時(shi)(shi)可降低(di)充(chong)(chong)電(dian)(dian)電(dian)(dian)流，以(yi)防止(zhi)損壞充(chong)(chong)電(dian)(dian)源。其它特性包括：充(chong)(chong)電(dian)(dian)狀(zhuang)態標(biao)志、充(chong)(chong)電(dian)(dian)故障(zhang)標(biao)志、電(dian)(dian)源就緒監測器(qi)(qi)、電(dian)(dian)池熱(re)敏電(dian)(dian)阻監測器(qi)(qi)、安全充(chong)(chong)電(dian)(dian)定(ding)時(shi)(shi)器(qi)(qi)以(yi)及(ji)欠(qian)壓鎖定(ding)(UVLO)。

　　MAX8895提(ti)供兩種USB選項：MAX8895X (低速(su))和MAX8895Y (全速(su))，兩個版本的器件均工作在4.0V至6.6V電源。MAX8895采(cai)用(yong)微型、2.5mm x 2.5mm、25焊球WLP封裝(焊球間距為0.4mm)，工作在-40°C至+85°C擴展級溫度范圍。可申請獲取樣品和評估板。