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FAN54300 Datasheet Li-Ion Switching Charger

Manufacturer: Fairchild (now onsemi)

Overview: FAN54300— USB-Compliant, Dual-Power Input, Single-Cell, Li-Ion Switching Charger with USB-OTG Boost Regulator August 2013 FAN54300 — USB-Compliant, Dual-Power Input, Single-Cell, Li-Ion Switching Charger with USB-OTG.

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General Description

The FAN54300 combines two highly integrated switch-mode chargers and a boost regulator to minimize single-cell Li-Ion charging time from a USB and/or auxiliary power source.

Charging parameters and operating modes are programmable through an I2C Bus® interface that operates up to 3.4 Mbps.

The charger and boost regulator circuits switch at 3 MHz to minimize the size of the external passive components.

Key Features

  • Fully Integrated, High-Efficiency Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs.
  • Accepts USB or Dedicated Power Input Source.
  • 5 V, 300 mA Boost Mode for USB OTG from 2.5 to 4.5 V Battery Input.
  • Charge Voltage Accuracy: 0.5% at TA=25°C 1% from TA=0 to 125°C.
  • 5% USB Input Current Regulation Accuracy.
  • 5% Charge Current Regulation Accuracy.
  • 20 V Absolute Maximum Input Voltage.
  • 9.5 V Maximum Input Operating Voltage on VIN Pin, 6.5 V Maximum o.

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