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Catalogue > Power Management system > Battery Charger BC-Li

Battery Charger BC-Li

 

High Battery Safety

Full Optimization for Li-Ion

Low Bill-of-Material

 

Portable devices commonly use Lithium-Ion batteries as power source and therefore need to embed a very accurate battery charger to monitor and manage the charge of the battery.
Dolphin’s battery charger for Li-Ion and Li-Poly batteries provides multiple functionalities to ensure proper charge in all battery voltage conditions while preventing overcharge.

 

Key benefits

  • Full optimization for Li-Ion
    • Ensures reliable operation with input voltage up to 6.5 V, thanks to built-in voltage protection for 3.3 V transistors
    • Maximizes battery charging thanks to accurate battery voltage monitoring through trimming (down to 0.35 %)
    • Programs charge current according to battery specification (from 100 mA to 1 A)
  • High battery safety:
    • Defects battery detection
    • Detection of over and under battery voltage
      • Shutdown mode when battery voltage gets under 2.8V
      • Automatic charge stop when battery voltage gets over 4.25V.
    • SoC and battery temperature control loop
  • Low Bill-of-Material:
    • No need for external components
    • Precision trimming may be implemented using either fuses or NVM module.

 

Applications

  • Mobile phone
  • PDA
  • MP3 players
  • all portable devices with Li-Ion battery up to 4.2 V

soc battery charger

 

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