產物參數

首要功效：一款任務于2.7V到6.5V的(de)PFM升(sheng)壓型多節(jie)電池充電節(jie)制集成電路

任務情勢：開關式

電池品種：鋰離子電池

電池數目：2-4

輸出電壓規模：0-25V

輸出電壓規模：2.7V-6.5V

任務電流：280uA

太陽能供電：是

熱調制：否

封裝情勢：SOP8

最大輸出功率：35W

內置功率管：否

闡述：

CN3305是款級任務于2.7V到6.5V的PFM升壓型多節蓄電電池蓄電吃妻上癮集成型電路設計。 CN3305使用恒流和準恒壓形勢(Quasi-CV^TM)對微型蓄(xu)電(dian)(dian)池(chi)暫(zan)停充值發放，外接整合有(you)基準價(jia)線電(dian)(dian)壓源，電(dian)(dian)感直流電(dian)(dian)查測院校，規范(fan)電(dian)(dian)線設計(ji)和(he)片(pian)外場不(bu)確定性結晶體(ti)管驅動包(bao)電(dian)(dian)線設計(ji)等(deng)，具(ju)備著外接元(yuan)器件(jian)少，電(dian)(dian)線設計(ji)容易等(deng)短處(chu)。

當(dang)(dang)接聽所在主機電(dian)(dian)(dian)(dian)(dian)(dian)源后，CN3305來到(dao)充能(neng)情況，控制片(pian)外(wai)N溝(gou)(gou)道(dao)MOSFET導(dao)通(tong)，電(dian)(dian)(dian)(dian)(dian)(dian)感電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)回落(luo)，當(dang)(dang)回落(luo)到(dao)靜態(tai)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)在線檢測電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)制定(ding)的(de)(de)受限制時(shi)(shi)(shi)，片(pian)外(wai)N溝(gou)(gou)道(dao)MOSFET關閉程序，電(dian)(dian)(dian)(dian)(dian)(dian)感直(zhi)(zhi)(zhi)(zhi)流電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)降低，電(dian)(dian)(dian)(dian)(dian)(dian)感中的(de)(de)精(jing)力變動到(dao)動力電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)中。當(dang)(dang)電(dian)(dian)(dian)(dian)(dian)(dian)感直(zhi)(zhi)(zhi)(zhi)流電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)降低到(dao)異常直(zhi)(zhi)(zhi)(zhi)流電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)檢則功率電(dian)(dian)(dian)(dian)(dian)(dian)阻配置的(de)(de)進(jin)攻時(shi)(shi)(shi)，片(pian)外(wai)N溝(gou)(gou)道(dao)MOSFET再(zai)者導(dao)通(tong)，如斯(si)循(xun)環。當(dang)(dang)FB管(guan)腳的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)首(shou)先次到(dao)了外(wai)界(jie)裝置的(de)(de)1.205V(標桿值)時(shi)(shi)(shi)，CN3305走進(jin)準恒壓(ya)蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)世界(jie)形勢，以較小(xiao)直(zhi)(zhi)(zhi)(zhi)流電(dian)(dian)(dian)(dian)(dian)(dian)對手(shou)機電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)蓄(xu)電(dian)(dian)(dian)(dian)(dian)(dian)。只需當(dang)(dang)FB管(guan)腳直(zhi)(zhi)(zhi)(zhi)流電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)第2次發往1.205V時(shi)(shi)(shi)，能(neng)充電(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)進(jin)程才竣事，片(pian)外(wai)N溝(gou)(gou)道(dao)MOSFET堅持停下概況。當(dang)(dang)FB管(guan)腳相電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)著陸(lu)到(dao)再(zai)快速充電(dian)(dian)(dian)(dian)(dian)(dian)閥值時(shi)(shi)(shi)，CN3305下次流入專研實力。CN3305最低人物頻(pin)度大(da)約1MHz，日(ri)常任務體溫產值從－40℃到(dao)＋85℃。

當蓄(xu)(xu)電(dian)池充電(dian)端(duan)線(xian)電(dian)壓少于輸送端(duan)線(xian)電(dian)壓或蓄(xu)(xu)電(dian)池充電(dian)斷(duan)路時，CN3305在片外N溝道(dao)MOSFET和P溝道(dao)MOSFET的配(pei)合度(du)化(hua)下，用較小電(dian)流大小延續對(dui)容量(liang)充電(dian)充能，對(dui)容量(liang)充電(dian)做到(dao)保護度(du)化(hua)。

其它(ta)功能主治蘊含(han)CMOS現象(xiang)唆使轉(zhuan)換(huan)端等。

CN3305容忍8管腳的SOP8封裝形式(shi)。

 

利用率：

l  多節電芯充能控制

l  好用于鋰(li)電板，磷酸鐵鋰(li)電板和鉛(qian)酸電板等(deng)手機充電合(he)理(li)利用率(lv)

l  當下幸福之電囂

l  POS機，異聲等

      l  自(zi)力充電(dian)器

特色文化：

l  輸入輸出(chu)電壓值數(shu)量：2.7V 到 6.5V

l  目標(biao)電流值：280微安@VIN=5V

l  電感直流電壓查重

l  高(gao)達模型1MHz電(dian)源開關(guan)頻率和次數

l  準恒壓(ya)進行充(chong)電(dian)局(ju)面補回容(rong)量充(chong)電(dian)電(dian)池電(dian)流值(zhi)表內阻和容(rong)量充(chong)電(dian)電(dian)池毗(pi)連線內阻發(fa)生的(de)電(dian)流值(zhi)沒有

l  相互再筆記(ji)本(ben)充電副(fu)作用

l  自由高達35W效(xiao)果(guo)電功(gong)率(lv)

l  當(dang)進行(xing)充(chong)電(dian)電(dian)池工(gong)作電(dian)流壓低效果工(gong)作電(dian)流或進行(xing)充(chong)電(dian)電(dian)池燒壞時(shi)，以較小(xiao)工(gong)作電(dian)流進行(xing)充(chong)電(dian)。

l  打印輸(shu)出電壓(ya)的(de)自順應時代(dai)作用與(yu)功(gong)效

l  電池充電端過壓保護

l  運行唆使模擬輸出

l  世界(jie)任務濕度(du)的規模：－40℃到85℃

l  混用于鋰電池，磷酸(suan)鐵(tie)鋰電池和鉛酸(suan)電池等

l  8管腳SOP8封裝

l  結果無(wu)鉛，知(zhi)足rohs指令表申請，不標(biao)鹵化物