资 源 简 介
The MAX8900_ is a high-frequency, switch-mode chargerfor a 1-cell lithium ion (Li+) or lithium polymer(Li-Poly) battery. It delivers up to 1.2A of current to thebattery from 3.4V to 6.3V (MAX8900A) or 3.4V to 8.7V(MAX8900B). The 3.25MHz switch-mode charger is ideallysuited to small portable devices such as headsetsand ultra-portable media players because it minimizescomponent size and heat.Several features make the MAX8900_ perfect for highreliabilitysystems. The MAX8900_ is protected againstinput voltages as high as +22V and as low as -22V.Battery protecTIon features include low voltage prequalificaTIon,charge fault TImer, die temperature monitoring,and battery temperature monitoring. The battery temperaturemonitoring adjusts the charge current and terminaTIonvoltage as described in the JEITA* specification forsafe use of secondary lithium-ion batteries.
