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BQ 24740 QFN-28

Brand new BQ24740 QFN-28

 The bq24745 is a high-efficiency, synchronous battery charger with an integrated input-current comparator, offering low component count for space-constrained, multi-chemistry battery-charging applications. The input-current, charge-current, and charge-voltage DACs allow very high regulation accuracies that can be easily programmed by the system power-management microcontroller using the SMBus interface. The bq24745 charges two, three, or four series Li+ cells, and is available in a 28-pin, 5-mm × 5 mm QFN package.

Features:

  •  NMOS-NMOS Synchronous Buck Converter with 300-kHz Frequency and >95% Efficiency
  • 30-ns Minimum Driver Dead-Time and 99.5% Maximum Effective Duty Cycle
  • Up to 19.2-V Battery Voltage
  • 7-V–24-V AC/DC-Adapter Operating Range
  • Simplified SMBus Control Interface
  • Status and Monitoring Outputs
  • Charge Any Battery Chemistry: Li+, NiCd, NiMH, Lead Acid, Etc.
  • Charge Enable Pin

Datasheet:

http://www.ti.com/lit/ds/symlink/bq24745.pdf




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