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)還具(ju)有(you)USB枚(mei)舉功能，可(ke)(ke)自動與USB主機(ji)進行(xing)交(jiao)互(hu)，無需處(chu)理器干預(yu)即可(ke)(ke)優化(hua)充電(dian)電(dian)流。該功能無需使用單(dan)(dan)獨的(de)微控制器和系統(tong)軟件(jian)，因而可(ke)(ke)提(ti)供業內僅有(you)的(de)單(dan)(dan)機(ji)運(yun)行(xing)充電(dian)方案。

　　智能(neng)電(dian)(dian)(dian)(dian)(dian)源(yuan)選擇器(Smart Power Selector)能(neng)夠實(shi)現USB電(dian)(dian)(dian)(dian)(dian)源(yuan)輸(shu)入(ru)(ru)(VBUS)至電(dian)(dian)(dian)(dian)(dian)池(chi)和系(xi)統負載(zai)的(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)無縫分配(pei)。該特(te)性允許在(zai)為(wei)(wei)系(xi)統供(gong)電(dian)(dian)(dian)(dian)(dian)的(de)同時對電(dian)(dian)(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)(dian)(dian)，也允許便攜設備在(zai)電(dian)(dian)(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)(dian)(dian)量耗盡或沒有電(dian)(dian)(dian)(dian)(dian)池(chi)的(de)情況下(xia)工作。當系(xi)統負載(zai)超出VBUS輸(shu)入(ru)(ru)電(dian)(dian)(dian)(dian)(dian)流(liu)限制時，電(dian)(dian)(dian)(dian)(dian)池(chi)還可為(wei)(wei)VBUS供(gong)電(dian)(dian)(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。此外，還可(ke)靈活設置快充(chong)電(dian)(dian)(dian)(dian)(dian)流、終止電(dian)(dian)(dian)(dian)(dian)流和充(chong)電(dian)(dian)(dian)(dian)(dian)定時器持續時間。MAX8895還支持自適應(ying)電(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)，必要時可(ke)降低充(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流，以(yi)防止損壞(huai)充(chong)電(dian)(dian)(dian)(dian)(dian)源。其(qi)它特(te)性包括：充(chong)電(dian)(dian)(dian)(dian)(dian)狀(zhuang)態標志、充(chong)電(dian)(dian)(dian)(dian)(dian)故障標志、電(dian)(dian)(dian)(dian)(dian)源就緒監(jian)(jian)測器、電(dian)(dian)(dian)(dian)(dian)池(chi)熱敏電(dian)(dian)(dian)(dian)(dian)阻監(jian)(jian)測器、安全充(chong)電(dian)(dian)(dian)(dian)(dian)定時器以(yi)及欠(qian)壓鎖定(UVLO)。

　　MAX8895提供兩種USB選項：MAX8895X (低速(su))和(he)MAX8895Y (全速(su))，兩個(ge)版本(ben)的器(qi)件均工(gong)作在4.0V至6.6V電源。MAX8895采用微(wei)型、2.5mm x 2.5mm、25焊球WLP封裝(zhuang)(焊球間距為0.4mm)，工(gong)作在-40°C至+85°C擴(kuo)展(zhan)級溫度范(fan)圍。可申請獲取樣品(pin)和(he)評估(gu)板(ban)。