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  • Advanced Single or Dual Cell Lithium-Ion/Lithium-Polymer Charge Management Controllers
    The MCP73842 combines high accuracy constant-voltage (0.5% max), cell preconditioning, constant-current regulation, advanced safety timers, cell temperature monitoring, automatic charge termination, and charge status indication in a space saving MSOP-10 package. The device provides a complete, stand-alone, fully functional charge management solution for applications utilizing dual series cell Lithium-Ion or Lithium-Polymer battery packs. Two preset voltage regulation options are available, 8.2V and 8.4V, for use with either coke or graphite anodes.
    http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1335&dDocName=en010553
  • Stand-Alone Linear Li-Ion / Li-Polymer Charge Management Controller
    The MCP73833/4 is a highly advanced linear charge management controller for use in space-limited, cost sensitive applications. The MCP73833/4 is available in a 10-Lead, 3mm x 3mm DFN package or a 10-Lead, MSOP package.
    http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1335&dDocName=en027786
  • Battery charger system with integrated power switch for Li-Ion/Li-Polymer
    The L6924D is a fully monolithic battery charger dedicated to single-cell Li-Ion/Polymer battery packs. It is the ideal solution for space-limited applications, like handheld equipment, PDAs, digital cameras, and cellular phones. It is designed with BCD6 technology and integrates all of the power elements in a small VFQFPN16 3mm x 3mm package.

    Features

    • Ideal for coke and graphite anode single-cell LI-ION packs
    • Both linear and quasi-pulse operation
    • Closed loop thermal control
    • USB BUS-compatible
    • Programmable charge current up to 1A
    • Fully integrated solution, with a power MOSFET, reverse blocking diode, sense resistor, and thermal protection
    • Programmable pre-charge current
    • Programmable end-of-charge current 4.2V, with ±1% output voltage accuracy
    • NTC or PTC thermistor interface for battery temperature monitoring and protection
    • Flexible charge process termination
    • Programmable pre-charge voltage threshold
    • Programmable charge timer
    • Programmable output voltage at 4.1V and
    • Status outputs to drive LEDs or to interface with a host processor
    • Small VFQFPN 16-leads package (3mm x 3mm)
    Applications
  • PDAs
  • Handheld devices
  • Cellular phones
  • Digital cameras
  • Standalone chargers
  • USB-Powered chargers
    http://www.st.com/stonline/products/literature/ds/11908/l6924d.pdf
  • LTC1731-8.4 - Lithium-Ion Linear Battery Charger Controller
    The LTC®1731-8.2/LTC1731-8.4 are complete constant-current/constant-voltage linear charger controllers for 2-cell lithium-ion (Li-Ion)batteries. Nickel-cadmium (NiCd) and nickel-metal-hydride (NiMH) batteries can also be charged with constant current using external termination. The external sense resistor sets the charge current with 7% accuracy.
    http://www.linear.com/pc/productDetail.jsp?navId=H0,C1,C1003,C1037,C1078,P1599

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