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Battery Charge Controllers | FAN54015

USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator

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Overview

The FAN54015 IC provides a fully integrated charging function from a USB power source for single-cell (1S) Li-Ion and Li-Po batteries. The IC includes over-voltage protection, a highly efficient DC-DC synchronous converter with a 1.45 A output at 4.2 V, sufficient to charge up to 2000 mAh Li-Ion and Li-Po batteries at 0.7 C charge rate.
The FAN54015 provides battery charging in three phases: conditioning, constant current, and constant voltage to protect the battery and maximize runtime. Charge current is reduced if the on-chip die temperature monitor reaches 120°C. The device is I2C controlled for programming charge operating modes and parameters.
The IC is offered in a 1.96 mm x 1.87 mm 20-bump WLCSP.

  • Charges Batteries from USB Source / No External Power Adapter Required
  • 1.45 A Charge Current; Sufficient to Charge 2000 mAh Li-Ion / Li-Po at 0.7C Charge Rate
  • Thermal Shutdown Chip Protection
  • Over-Voltage Input Voltage Protection Allows ≤ 20 V Input
  • I2C (3.4 Mb/s) Programmable Charge Operating Modes and Parameters
  • 3 MHz Synchronous Buck PWM Controller with Wide Duty Cycle Range Allows Smaller (1 µH) Inductor Minimizing EMI
  • Small Footprint 1.96 mm x 1.87 mm 20-Bump WLCSP
  • Minimal BOM / 1 µH Inductor, 5 Capacitors, 1 Resistor
  • Safety Timer with Reset Control / Charge Control

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FAN54015BUCX

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Obsolete

CAD Model

Pb

A

H

P

WLCSP-20

567SL

1

260

REEL

3000

N

Charger

-

4

6

-

Price N/A

More Details

FAN54015UCX

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Obsolete

CAD Model

Pb

A

H

P

WLCSP-20

567SL

1

260

REEL

3000

N

Charger

-

4

6

-

Price N/A

More Details

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