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(qi)件還具有USB枚舉功能，可自動與USB主機(ji)進行(xing)交互(hu)，無(wu)需(xu)處理(li)器(qi)干預即可優化充電(dian)(dian)電(dian)(dian)流。該功能無(wu)需(xu)使用單獨(du)的微控制(zhi)器(qi)和系(xi)統軟件，因而可提供業內僅有的單機(ji)運行(xing)充電(dian)(dian)方案。

　　智能(neng)電(dian)(dian)源選擇器(qi)(Smart Power Selector)能(neng)夠實現USB電(dian)(dian)源輸(shu)入(VBUS)至電(dian)(dian)池和系(xi)統(tong)(tong)負載的(de)電(dian)(dian)源無縫分配。該(gai)特性允許在(zai)為(wei)系(xi)統(tong)(tong)供(gong)電(dian)(dian)的(de)同時(shi)對電(dian)(dian)池充電(dian)(dian)，也允許便攜設備(bei)在(zai)電(dian)(dian)池電(dian)(dian)量耗盡或沒有電(dian)(dian)池的(de)情況下工(gong)作。當系(xi)統(tong)(tong)負載超出VBUS輸(shu)入電(dian)(dian)流限制時(shi)，電(dian)(dian)池還可為(wei)VBUS供(gong)電(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(huan)可(ke)(ke)靈活設置快(kuai)充(chong)電(dian)(dian)(dian)(dian)流、終止電(dian)(dian)(dian)(dian)流和充(chong)電(dian)(dian)(dian)(dian)定時(shi)器持(chi)續(xu)時(shi)間。MAX8895還(huan)支(zhi)持(chi)自適(shi)應(ying)電(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)，必要時(shi)可(ke)(ke)降低充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流，以防止損壞充(chong)電(dian)(dian)(dian)(dian)源。其它(ta)特性包括：充(chong)電(dian)(dian)(dian)(dian)狀態標志、充(chong)電(dian)(dian)(dian)(dian)故(gu)障標志、電(dian)(dian)(dian)(dian)源就緒監測器、電(dian)(dian)(dian)(dian)池(chi)熱敏電(dian)(dian)(dian)(dian)阻監測器、安全充(chong)電(dian)(dian)(dian)(dian)定時(shi)器以及欠(qian)壓鎖定(UVLO)。

　　MAX8895提供兩(liang)種USB選項：MAX8895X (低速)和MAX8895Y (全速)，兩(liang)個版本的(de)器件均工作(zuo)在4.0V至6.6V電源。MAX8895采用微型、2.5mm x 2.5mm、25焊球WLP封(feng)裝(焊球間距為0.4mm)，工作(zuo)在-40°C至+85°C擴展級(ji)溫(wen)度范圍。可申請獲取樣品和評估板。