SLUSE37 March   2020 BQ24800

PRODUCTION DATA.  

  1. 1Features
  2. 2Applications
  3. 3Description
  4. 4Description (continued)
  5. 5Device and Documentation Support
    1. 5.1 Device Support
      1. 5.1.1 Third-Party Products Disclaimer
    2. 5.2 Documentation Support
      1. 5.2.1 Related Documentation
    3. 5.3 Receiving Notification of Documentation Updates
    4. 5.4 Support Resources
    5. 5.5 Trademarks
    6. 5.6 Electrostatic Discharge Caution
    7. 5.7 Glossary
  6. 6Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

3 Description

The BQ24800 device is a high-efficiency, synchronous buck battery charger, offering low component count for space-constrained, multi-chemistry battery charging applications.

The BQ24800 device supports hybrid power boost mode. Hybrid power boost mode boosts the battery up to the system voltage in order to supplement the adapter when system power demand is temporarily higher than the adapter is able to provide. The ultra-fast transition from battery charging to battery discharging prevents adapter crash from overloading condition.

The BQ24800 device also supports battery only boost mode when no adapter is present. When the battery voltage is above the minimum system operation voltage, the battery is directly connected to the system supply rail through BATFET. Once the battery voltage goes below the minimum system operation voltage, BQ24800 will turn on the boost mode to regulate the system supply rail, extending the system run time.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
BQ24800 WQFN (28) 4.00 mm × 4.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.
BQ24800 BQ24800_smallSchem.gif