MM4128B/MM4129B系列是采用(yong)高耐壓CMOS制造工(gong)藝的(de)過電(dian)(dian)(dian)(dian)流保護IC，能夠(gou)對(dui)可充電(dian)(dian)(dian)(dian)的(de)2串鋰離(li)子/鋰聚合(he)物電(dian)(dian)(dian)(dian)池的(de)每串電(dian)(dian)(dian)(dian)池進行高精(jing)度(du)的(de)過充電(dian)(dian)(dian)(dian)檢(jian)測。 內部由電(dian)(dian)(dian)(dian)壓檢(jian)測器(qi)、基準電(dian)(dian)(dian)(dian)壓源(yuan)、振蕩器(qi)電(dian)(dian)(dian)(dian)路(lu)(lu)、計(ji)數器(qi)電(dian)(dian)(dian)(dian)路(lu)(lu)和邏輯(ji)電(dian)(dian)(dian)(dian)路(lu)(lu)構(gou)成。 

2串 二次(ci)保護(hu)用 

（1）各種檢測/解除(chu)電壓的選擇與精度

● 過充電檢測電壓 3.6V ~ 5.0V，5mV進階可選 精度(du)±15mV

● 過(guo)充電解除電壓 3.1V ~ 5.0V, 50mV Step 精度(du)±50mV

● 待機檢測電(dian)壓 2.5V和3.5V可選 精度±300mV     

（2）各種檢測延時時間的選擇范圍

● 過充電檢(jian)測延時時間 1s、2s、4s、8s可(ke)選

● 過充(chong)電(dian)解除延時(shi)時(shi)間 1ms、2ms、4ms、8ms、16ms可選

● 過充電(dian)檢測定時(shi)器復位延時(shi)時(shi)間 16ms固(gu)定

（3）內部穩壓器電壓的選擇范(fan)圍

● COUT引腳輸(shu)出(chu)電壓H 1.8V、3.3V、4.7V可選

（4）消耗電流

● 消耗電流(liu) (Vcell=4.0V) Typ. 0.85uA Max. 1.70uA

● 待機電流 (Vcell=2.0V) Typ. 0.15uA Max. 0.30uA