数据手册MAX847 完备的电源及监控系统,提供SPI™接口,简化设计、降低成本、节省空间 .pdf [英文Rev.1a(PDF,176kB)]

{状况:生产中。}

The MAX847 is a complete power-supply and monitoring system for two-way pagers or other low-power digital communications devices. It requires few external components. Included on-chip are: A 1-cell input, 80mA output, synchronous-rectified boost DC-DC regulator with a digitally controlled +1.8V to +4.9V output Three low-noise linear-regulator outputs Three DAC-controlled comparators for software- driven 3-channel A/D conversion SPI™-compatible serial interface Reset and low-battery (LBO) warning outputs Charger for NiCd, NiMH, lithium battery, or storage capacitor for RF PA power or system backup Two 1.8Ω (typical) serial-controlled open-drain MOSFET switches An evaluation kit for the MAX847 (MAX847EVKIT) is available to aid in design and prototyping.

产品关键特性
  • 80mA Output from 1 Cell at 90% Efficiency
  • 13µA Idle Mode™ (coast) Current
  • Selectable Low-Noise PWM or Low-Current Operation
  • PWM Operating Frequency Synchronized to Seven Times an External Clock Source
  • Operates at 270kHz with No External Clock
  • Automatic Backup-Battery Switchover
应用与使用范围
  • 1节电池供电的手持设备
  • GPS接收机
  • 双向寻呼
典型工作电路

芯片订购型号
订购型号产品状态封装形式工作温度RoHS/无铅
MAX847EEI生产中QSOP;28引脚;61.9mm²封装信息-40°C至+85°CRoHS/无铅:否材料分析
MAX847EEI+生产中QSOP;28引脚;61.9mm²封装信息-40°C至+85°CRoHS/无铅:无铅材料分析
MAX847EEI+T生产中QSOP;封装信息-40°C至+85°C参考数据资料
MAX847EEI-T生产中QSOP;28引脚封装信息-40°C至+85°C参考数据资料
功能接近器件
MAX7692或3节电池、升/降压型、双向寻呼机系统电源IC
评估板与开发套件
MAX847EVKITMAX847评估板
相关芯片型号
MAX847EVKITMAX847评估板
MAX847 : 1节电池、升压型、双向寻呼机系统电源IC MAX847