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IC / 8765E / MAX8765ETI / QFN-28

تولید کننده: MAXIM
مدل کالا: MAX8765ETI
موجودی:
تماس 8893- 6186
قیمت: 0تومان

  8765E - MAXIM - QFN-28 - MAX8765ETI

Low-Cost Multichemistry Battery Chargers

کم هزینه ترین شارژر باتری

General Description

The MAX1908/MAX8724/MAX8765 highly integrated, multichemistry battery-charger control ICs simplify the construction of accurate and efficient chargers. These devices use analog inputs to control charge current and voltage, and can be programmed by the host or hardwired. The MAX1908/MAX8724/MAX8765 achieve high efficiency using a buck topology with synchronous rectification.
The MAX1908/MAX8724/MAX8765 feature input current limiting. This feature reduces battery charge current when the input current limit is reached to avoid overloading the AC adapter when supplying the load and the battery charger simultaneously. The MAX1908/MAX8724/ MAX8765 provide outputs to monitor current drawn from the AC adapter (DC input source), battery-charging current, and the presence of an AC adapter. The MAX1908’s conditioning charge feature provides 300mA to safely charge deeply discharged lithium-ion (Li+) battery packs.
The MAX1908 includes a conditioning charge feature while the MAX8724/MAX8765 do not.
The MAX1908/MAX8724/MAX8765 charge two to four series Li+ cells, providing more than 5A, and are available in a space-saving, 28-pin, thin QFN package (5mm × 5mm). An evaluation kit is available to speed designs.

Features

±0.5% Output Voltage Accuracy Using Internal
Reference (0°C to +85°C)
±4% Accurate Input Current Limiting
±5% Accurate Charge Current
Analog Inputs Control Charge Current and
Charge Voltage
Outputs for Monitoring
Current Drawn from AC Adapter
Charging Current
AC Adapter Presence
Up to 17.6V Battery-Voltage Set Point
Maximum 28V Input Voltage
> 95% Efficiency
Shutdown Control Input
Charge Any Battery Chemistry
Li+, NiCd, NiMH, Lead Acid, etc.

Applications

Notebook and Subnotebook Computers
Personal Digital Assistants
Handheld Terminals

 

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