CXCH76028 series offer integrated two power source, USB-port and ac-adapter with autonomous power source selection, power MOSFET, charge status, high accuracy current and voltage regulation, and charg

   产品概述 返回TOPOnh嘉泰姆

The CXCH76028 series are a standalone linear Li-Ion battery charger with a complete precharge, constant current, and constant voltage charge loop. The CXCH76028 series offer integrated two power source, USB-port and ac-adapter with autonomous power source selection, power MOSFET, charge status, high accuracy current and voltage regulation, and charge termination. In the USB configuration, 100mA or 500mA of charge rates could be selected by ISET2. In the ac-adapter configuration, charge current can be set by an external resistance. The charge voltage is regulated at 4.2V, and CXCH76028 series charge cycle would be terminated automatically based on minimum current after the final regulation voltage is reached. An internal charge timer provides a backup safety for charge termination. Other features include undervoltage lockout, overvoltage lockout, over temperature protection and auto-recharge if the battery voltage falls below an internal threshold.

   产品特点 返回TOPOnh嘉泰姆

  „ No External Power MOSFET, Sense Resistor or Blocking Diode Required Onh嘉泰姆

„ 1% Regulation Voltage Accuracy Onh嘉泰姆

„ Accepting USB and AC-Adapter Power Sources with Autonomous Power-Source Selection Onh嘉泰姆

„ Overvoltage Lockout for Adapter and USB Input Onh嘉泰姆

„ USB Control For Selectable 100mA and 500mA Charge Rate Onh嘉泰姆

„ Programmable Charge Current Limit up to 1A From AC-adapter Onh嘉泰姆

„ Automatic Recharge „ Complete Precharge, Constant Current, Constant Voltage and Charge Termination Onh嘉泰姆

„ Charge Procedure with Safety Timer Onh嘉泰姆

„ Support for 5V Power Supply Voltage Onh嘉泰姆

„ Optional Power Good Indication (AC Adapter Present) Onh嘉泰姆

„ Optional Battery Temperature Monitoring Onh嘉泰姆

„ Internal Thermal Protection Circuit Onh嘉泰姆

„ 3mm × 3mm TDFN PackageOnh嘉泰姆

   应用范围 返回TOPOnh嘉泰姆

„ MP3 Players Onh嘉泰姆

„ Cellular Phones, Smartphone Onh嘉泰姆

„ PDAs, Digital Cameras Onh嘉泰姆

„ Hand-Held DevicesOnh嘉泰姆

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