Part # MAX1908-MAX8765 datasheet

Part Manufacturer: Maxim

Maxim

Part Description: MAX1908 DS


Part Details:

19-2764; Rev 4; 7/05 EVALUATION KIT AVAILABLE Low-Cost Multichemistry Battery Chargers MAX1908/MAX8724/MAX8765 General Description Features The MAX1908/MAX8724/MAX8765 highly integrated, multi- ±0.5% Output Voltage Accuracy Using Internal chemistry battery-charger control ICs simplify the construc- Reference (0°C to +85°C) tion of accurate and efficient chargers. These devices useanalog inputs to control charge current and voltage, and ±4% Accurate Input Current Limiting can be programmed by the host or hardwired. The ±5% Accurate Charge Current MAX1908/MAX8724/MAX8765 achieve high efficiencyusing a buck topology with synchronous rectification. Analog Inputs Control Charge Current and The MAX1908/MAX8724/MAX8765 feature input current Charge Voltage limiting. This feature reduces battery charge current when Outputs for Monitoring the input current limit is reached to avoid overloading the Current Drawn from AC Adapter AC adapter when supplying the load and the battery Charging Current charger simultaneously. The MAX1908/MAX8724/ AC Adapter Presence MAX8765 provide outputs to monitor current drawn fromthe AC adapter (DC input source), battery-charging cur- Up to 17.6V Battery-Voltage Set Point rent, and the presence of an AC adapter. The MAX1908 s Maximum 28V Input Voltage conditioning charge feature provides 300mA to safelycharge deeply discharged lithium-ion (Li+) battery packs. > 95% Efficiency The MAX1908 includes a conditioning charge feature Shutdown Control Input while the MAX8724/MAX8765 do not. Charge Any Battery Chemistry The MAX1908/MAX8724/MAX8765 charge two to four Li+, NiCd, NiMH, Lead Acid, etc. series Li+ cells, providing more than 5A, and are avail-able in a space-saving, 28-pin, thin QFN package (5mm × 5mm). An evaluation kit is available to speed designs. Ordering Information Applications PIN- Notebook and Subnotebook Computers PART TEMP RANGE PKG CODE PACKAGE Personal Digital Assistants MAX1908ETI -40°C to +85°C 28 Thin QFN T2855-6 Handheld Terminals


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MAX1908-MAX8765.pdf Datasheet