@▷ 2.5A, Dual-Input Li-Ion Battery Charger | Diagram for Schematic

2.5A, Dual-Input Li-Ion Battery Charger

2.5A, Dual-Input Li-Ion Battery Charger

2.5A, Dual-Input Li-Ion Battery Charger

The bq24165, bq24166 and bq24167 are highly integrated single cell Li-Ion battery charger and system power path management devices targeted for space-limited, portable applications with high capacity batteries. The single cell charger has dual inputs which allow operation from either a USB port or higher power input supply (i.e., AC adapter or wireless charging input) for a versatile solution. The two inputs are fully isolated from each other and are managed by the bq24165/166/167 with the IN input having precedence.

The power path management feature allows the bq24165/166/167 to power the system from a high efficiency DC to DC converter while simultaneously and independently charging the battery. The charger monitors the battery current at all times and reduces the charge current when the system load requires current above the input current limit.

Device Uses
  • Handheld Products
  • Portable Media Players
  • Portable Equipment
  • Netbook and Portable Internet Devices
Features
  • High-Efficiency Switch Mode Charger with Separate Power Path Control
  • Make a GSM Call with a Deeply Discharged Battery or No Battery
  • Instantly Startup System from a Deeply Discharged Battery or
  • No Battery
  • Dual Input Charger
  • 20V Input Rating, With Over-Voltage Protection (OVP)6.5V
  • for USB Input10.5V for IN Input
  • Integrated FETs for Up to 2.5A Charge RateUp to 2.5A from
  • IN InputUp to 1.5A from USB Input
  • Highly Integrated Battery N-Channel MOSFET Controller
  • for Power Path Management
  • Safe and Accurate Battery Management Functions
  • 0.5% Battery Regulation Accuracy
  • 10% Charge Current Accuracy
  • Adjustable Charge Current, Input Current Limit, and
  • VINDPM Threshold (for IN input)
  • Easy JEITA Implementation
  • Charge Parameter Selector Inputs
  • (CE1, CE2) for (bq24165)
  • Voltage-based, NTC Monitoring Input (TS)
  • Standard Temperature Range (bq24166)
  • JEITA Compatible (bq24167)
  • Thermal Regulation Protection for Output Current Control
  • Low Battery Leakage Current, BAT Short-Circuit Protection
  • Soft-Start Feature to Reduce Inrush Current
  • Thermal Shutdown and Protection
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