TI较低端的充电IC数字手册:Thebq24157isacompact,flexible,high-efficiency,USB-friendlyswitch-modechargemanagementdeviceforsingle-cellLi-ionandLi-polymerbatteriesusedinawiderangeofportableapplications.ThechargeparameterscanbeprogrammedthroughanI2Cinterface.