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Battery Charge Controllers | FAN54020

USB-Compliant 1.5 A Single-Cell Li-Ion Switching Charger with DBP and OTG Boost

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Overview

The FAN54020 is a USB-compliant single-cell Li-Ion switching charger with support for Dead Battery Provision (DBP). Maximum charge current is rated at 1.5 A.
The FAN54020 conforms to all the constraints for the Dead Battery Provision (DBP) within the BC1.2 specification, including a 30-minute timer that cannot exceed 45 minutes per BC1.2.
The FAN54020 is designed to be stable with space-saving ceramic capacitors.
The FAN54020 can operate as a boost regulator on command from the system. The boost regulator includes a soft-start that limits inrush current from the battery.
The FAN54020 is available in a 25-bump, 0.4 mm pitch, Wafer-Level Chip-Scale Package (WLCSP).

  • Fully Integrated, High-Efficiency Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs
  • Faster Charging / Less Heat Dissipation than Linear
  • Charge Voltage Accuracy:
  • 鈭�0.5% at 25掳C
  • 鈭�1% from -30 to 125掳C
  • 鈭�10% Charge Current Regulation Accuracy
  • 28 V Absolute Maximum Input Voltage
  • 1.5 A Maximum Charge Current
  • Support for Dead Battery Provision ( DBP ) of USB Battery Charging Specification 1.2
  • Programmable through I2C Interface with Fast Mode (400 kHz) Compatibility
  • Input Current
  • Fast-Charge / Termination Current
  • Charger (Float) Voltage
  • Safety Timer with Reset Control
  • Low Reverse Leakage Prevents Battery Drain to VBUS
  • Weak Input Sources Accommodated by Reducing Charging Current to Maintain Minimum VBUS Voltage
  • 3.3 V Regulated Output from VBUS for Auxiliary Circuits
  • Small Footprint 1飦璈 External Inductor
  • Attachment Detect Protocol (ADP) Support per On-The-Go and Embedded Host Supplement to the USB Rev. 2.0 Specification
  • 5 V, 500 mA Boost Mode for USB OTG for 3.0 to 4.5 V Battery Input

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FAN54020UCX

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Obsolete

CAD Model

Pb

A

H

P

WLCSP-25

567SP

1

260

REEL

3000

N

Charger

-

4

7.5

-

Price N/A

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