全新 原装 现货 热卖 MAX8677CETG
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General Description The MAX8677C is an integrated 1-cell Li+ charger and Smart Power Selector8482; with dual (DC and USB) power inputs. It can operate with either separate inputs for USB and AC adapter power*, or from a single input that accepts both. All power switches for charging and switching the load between battery and external power are included on-chip. No external MOSFETs are required. The MAX8677C features a Smart Power Selector to make the best use of limited USB or adapter power. The battery charge current and input current limit are independently set up to 1.5A and 2A, respectively. Input power not used by the system charges the battery. USB input current can be set to 100MA or 500MA. Automatic input selection switches the system load from battery to external power. Other features include overvoltage protection (OVP), charge status and fault outputs, power-OK monitors, charge timer, and battery thermistor monitor. Additionally, on-chip thermal limiting reduces the battery charge rate to prevent overheating. The MAX8677C is available in a 4mm x 4mm, 24-pin TQFN-EP package. Applications PDAs, Palmtops, and Wireless Handhelds Smart Cell Phones Portable Media/MP3 Players GPS Navigation Digital Cameras Features 9830; Complete Charger and Smart Power Selector 9830; No External MOSFETs Required 9830; Common or Separate USB and Adapter Inputs 9830; System Operates with Discharged or No Battery 9830; Automatic Adapter/USB/Battery Switchover 9830; Load Peaks Over Adapter Rating Are Supported by Battery 9830; Input Overvoltage Protection to 16V 9830; 40mΩ System-to-Battery Switch 9830; Thermal Regulation Prevents Overheating 9830; PREQ, CHG, DOK, UOK, and FLT Indicators 9830; 4.35V (typ) SYS Regulation Voltage
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