资料介绍
MTK充电系统培训MTK充电系统培训
Amon 20080531
Summary
MTK充电芯片及其比较 MTK充电硬件知识 MTK充电流程介绍 MT6223充电问题
MTK带充电功能相关的芯片
MT6305
MTK的PMIC,Li-ion&NiMH
MT6318
MTK的PMIC,Li-ion, USB
MT6223
集成PMIC的GSM基带芯片,集成PMIC为MT6318.
各充电芯片的差别
MT6305与MT6318 MT6318 MT6305
Charger Current
MT6305 Charger function
Charger function
BATUSE (L Li-ion, H Ni-Mh) BATDET (L charger enabled) (5usec) PMIC auto disable charging function if illegal battery is found or battery removal Precharge function (Li-ion/Ni-MH) Precharge current = 10mV/Rsense CC mode charging (Li-ion/Ni-MH) CC mode charging current = 160mV/Rsense CV mode charging (only for Li-ion) Vbat is kept to 4.2V OV function (5usec) 4.3 V (Li-ion), 5.1V (Ni-MH)
充电曲线
MTK6223 Charger Circuit
Application circuit