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  • LTC4058-4.2 - Standalone Linear Li-Ion Battery Chargers with Thermal Regulation in DFN
    The LTC4058 can Kelvin sense the battery terminal for more accurate float voltage charging. No external sense resistor or external blocking diode are required due to the internal MOSFET architecture. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature conditions. The charge voltage is fixed at 4.2V and the charge current is programmed with a resistor. The LTC4058 terminates the charge cycle when the charge current drops to 10% of the programmed value after the final float voltage is reached.
    http://www.linear.com/pc/productDetail.jsp?navId=H0,C1,C1003,C1037,C1078,P2352
  • Programmable Li-ION battery charger system for portable applications
    In the last few years, a great number of Li-Ion powered applications such as cellular phones, PDAs, digital cameras and MP3 players have been introduced. Due to their portability, two of the most important requirements are:
    • Battery life - the time the application runs until it needs to be recharged;
    • “Lifespan” - the total time the battery lasts before it must be replaced.

    http://www.st.com/stonline/products/families/power_management/battery_management/related_info/l6924d.htm
  • ADM696 µP Supervisor with Backup Battery Switchover, Adjustable Low Line Voltage Monitor, Adjustable Watchdog Timer, Low Line, Power Fail and Watchdog Status Outputs and 100mA Output Current
    The ADM696/ADM697 supervisory circuits offer complete single chip solutions for power supply monitoring and battery control functions in microprocessor systems. These functions include µP reset, watchdog timer, backup-battery switchover, CMOS RAM write protection, and power failure warning.
    http://www.analog.com/en/prod/0,,766_822_ADM696%2C00.html
  • Up to 1A switching regulator with adjustable current limit
    The L6902D is a complete and simple step down switching regulator with adjustable current limit. Based on a voltage mode structure it integrates a current error amplifier to have a constant voltage and constant current control.

    Applications

    • Simple step-down converters with adjustable current limit
    • Distributed power supply
    • Mobile PC & subnotebook
    • Chargers for NiCd, NiMH batteries and preregulator for Lithium-Ion batteries
    • Adjustable current generator
    • Battery equipped systems

    http://www.st.com/stonline/products/literature/ds/7332/l6902.pdf
  • Simple Input Adapter Reverse Voltage Protection
    Simple Input Adapter Reverse Voltage Protection
    http://www.onsemi.com/pub/Collateral/AND8203-D.PDF

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