MM3877系列是采用(yong)高(gao)耐壓(ya)CMOS制造工藝(yi)的(de)可充電(dian)(dian)(dian)(dian)(dian)鋰(li)離(li)子(zi)/鋰(li)聚合物(wu)電(dian)(dian)(dian)(dian)(dian)池IC,用(yong)于過(guo)(guo)(guo)充電(dian)(dian)(dian)(dian)(dian)、過(guo)(guo)(guo)放電(dian)(dian)(dian)(dian)(dian)、過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)流、溫度保(bao)護和(he)電(dian)(dian)(dian)(dian)(dian)池平(ping)衡(heng)控制,能夠(gou)檢(jian)測4-7串(chuan)鋰(li)離(li)子(zi)/鋰(li)聚合物(wu)電(dian)(dian)(dian)(dian)(dian)池的(de)過(guo)(guo)(guo)充電(dian)(dian)(dian)(dian)(dian)、過(guo)(guo)(guo)放電(dian)(dian)(dian)(dian)(dian)、放電(dian)(dian)(dian)(dian)(dian)過(guo)(guo)(guo)流、充電(dian)(dian)(dian)(dian)(dian)過(guo)(guo)(guo)流和(he)短路(lu)(lu)。 可以使用(yong)一個(ge)外(wai)部(bu)(bu)熱敏電(dian)(dian)(dian)(dian)(dian)阻進(jin)行(xing)(xing)溫度檢(jian)測和(he)電(dian)(dian)(dian)(dian)(dian)池平(ping)衡(heng)控制。 內部(bu)(bu)由電(dian)(dian)(dian)(dian)(dian)壓(ya)檢(jian)測器(qi)、基(ji)準電(dian)(dian)(dian)(dian)(dian)壓(ya)源、振蕩器(qi)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)、計數(shu)器(qi)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)和(he)邏輯電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)構成。 還可以使用(yong)多個(ge)MM3877進(jin)行(xing)(xing)級(ji)聯,低成本和(he)節(jie)省空間的(de)保(bao)護電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)可以對應7串(chuan)以上的(de)應用(yong)。
4~7串用
(1) 各(ge)種檢測/解(jie)除電壓和溫(wen)度的選(xuan)擇范圍與精度
● 過充(chong)電檢測電壓(ya) 3.6V ~ 4.5V,5mV step 精度±20mV
● 過充電(dian)解除(chu)電(dian)壓 3.4 V ~ 4.5 V,50 mV step 精度±30 mV
● 過放電檢(jian)測電壓 2.0 V ~ 3.0 V,50 mV step 精度(du)±50 mV
● 過放電解除電壓 2.0 V ~ 3.5 V,50 mV step 精度±100 mV
● 電池平(ping)衡檢(jian)測(ce)電壓 3.6V ~ 4.5V,5mV step 精度±25mV
● 放電過電流(liu)檢(jian)測電壓(ya)1 30mV ~ 300mV,5mV step 精度±10%
● 放(fang)電過電流檢測電壓2 60mV ~ 600mV,5mV step 精(jing)度±15%
● 短(duan)路檢測電壓(ya) 200mV ~ 1.0V,50mV step 精度±20%
● 充電(dian)(dian)過電(dian)(dian)流檢測電(dian)(dian)壓 -300mV ~ -20mV,5mV step 精度±10%
● 溫度檢測(ce)保(bao)護(hu) -40°C ~ +75°C,5°C step 精度±5°C
(2) 各種檢測延時(shi)時(shi)間的(de)選擇范圍
● 過(guo)充電(dian)檢測延時(shi)時(shi)間 100ms ~ 2.048s
● 過放電檢測延時時間 100ms ~ 2.048s
● 電池平衡檢測延(yan)時時間 100ms ~ 4.096s
● 放電過電流檢測延時時間1 100ms ~ 2560ms,COC=0.01uF
● 放電(dian)過(guo)電(dian)流檢測延(yan)時時間2 10ms ~ 640ms,COC=0.01uF
● 短路檢(jian)測延時(shi)時(shi)間 200μs ~ 500μs, step50μs
● 放電(dian)過電(dian)流解除延(yan)時(shi)時(shi)間 4ms ~ 2.048s
● 充電過電流檢測延時(shi)(shi)時(shi)(shi)間 4ms ~ 2.048s
● 充(chong)電過電流解除輸出延時時間 4ms ~ 2.048s
● 溫度檢測延時時間 4ms ~ 2.048s
● 溫(wen)度解(jie)除延時時間 4ms ~ 2.048s
(3) 通過SEL引腳可實現4-7串電池保(bao)護之間進行切換
(4) 配置了省電模式(shi)
(5) 級聯
(6) 0V電(dian)池(chi)充電(dian)功能(neng)(neng) 可選(xuan)擇[禁止]/[允許](可選(xuan)功能(neng)(neng))
(7) 低電流消耗
● 平均消(xiao)耗(hao)電流(普通(tong)模式(shi)) Typ. 20.0uA Max. 30.0uA (VCELL=3.5V)
● 消耗電(dian)流(省(sheng)電(dian)模(mo)式)Typ. 1.0uA Max. 1.5uA (VCELL=1.8V)
型號 | 封裝 | 0V 充電 | 過充電 檢測電壓 [V] | 過充電 解除電壓 [V] | 過放電 檢測電壓 [V] | 過放電 解除電壓 [V] | 放電過電流 檢測電壓1 [V] | 放電過電流 檢測電壓2 [V] | 充電過電流 檢測電壓 [V] | 短路 檢測電壓 [V] | 電池平衡 檢測電壓 [V] | 過充電 檢測延時時間 [s] | 過放電 檢測延時時間 [ms] | 放電過電流 檢測延時時間1 [ms] | 放電過電流 檢測延時時間2 [ms] | 充電過電流 檢測延時時間 [ms] | 短路 檢測延時時間 [ms] | 電池平衡 檢測延時時間 [ms] | 高溫 檢測溫度1 [℃] | 高溫 解除溫度1 [℃] | 高溫 檢測溫度2 [℃] | 高溫 解除溫度2 [℃] | 低溫 檢測溫度1 [℃] | 低溫 解除溫度1 [℃] |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MM3877C05WBE | VSOP-20A | 禁止 | 4.250 | 4.100 | 2.750 | 3.000 | 0.1000 | 0.2000 | -0.0300 | 0.350 | 4.200 | 1.020 | 1020.0 | 100.0 | 10.0 | 1020.0 | 0.350 | 256.0 | 75 | 65 | 50 | 40 | 0 | 10 |
MM3877C06WBE | VSOP-20A | 禁止 | 3.700 | 3.550 | 2.300 | 2.700 | 0.1000 | 0.2000 | -0.0300 | 0.350 | 3.550 | 1.020 | 1020.0 | 100.0 | 10.0 | 1020.0 | 0.350 | 256.0 | 75 | 65 | 50 | 40 | 0 | 10 |