USB-OTG, 1.55A, Li-Ion Switching Chargers with Power Path and 2.3A Production Test Support

Favorite

Overview

The FAN5404X family includes I2C controlled 1.55 A USB-compliant switch-mode chargers with power path operation and USB OTG boost operation. Integrated with the charger, the IC supports production test mode, which provides 4.2 V at up to 2.3 A to the system.
To facilitate fast system startup, the IC includes a power path circuit, which disconnects the battery from the system rail, ensuring that the system can power up quickly following a VBUS connection. The power path circuit ensures that the system rail stays up when the charger is plugged in, even if the battery is dead or shorted.
The charging parameters and operating modes are programmable through an I2C Interface that operates up to 3.4 Mbps. The charger and boost regulator circuits switch at 3 MHz to minimize the size of external passive components.
The FAN5404X provides battery charging in three phases: conditioning, constant current, and constant voltage. The integrated circuit automatically restarts the charge cycle when the battery falls below a voltage threshold. If the input source is removed, the IC enters a high-impedance mode blocking battery current from leaking to the input. Charge status is reported back to the host through the I2C port.
Dynamic input voltage control prevents a weak adapter’s voltage from collapsing, ensuring charging capability from such adapters.
The FAN5404X is available in a 25-bump, 0.4 mm pitch, WLCSP package.

  • "Fully Integrated, High-Efficiency Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs
  • Power Path Circuit Ensures Fast System Startup with a Dead Battery when VBUS is Connected
  • 1.55 A Maximum Charge Current
  • Float Voltage Accuracy:
  • ±0.5% at 25°C
  • ±1% from 0 to 125°C
  • ±5% Input and Charge Current Regulation Accuracy
  • Temperature-Sense Input Prevents Auto-Charging for JEITA Compliance
  • Thermal Regulation and Shutdown
  • 4.2 V at 2.3 A Production Test Mode
  • 5 V, 500 mA Boost Mode for USB OTG
  • 28 V Absolute Maximum Input Voltage
  • 6 V Maximum Input Operating Voltage
  • Programmable through High-Speed I2C Interface (3.4 Mb/s) with Fast Mode Plus Compatibility
  • Fast-Charge / Termination Current
  • Input Current
  • Termination Enable
  • Float Voltage
  • Small Footprint 1 H External Inductor
  • 3 MHz Synchronous Buck PWM Controller with Wide Duty Cycle Range
  • Dynamic Input Voltage Control
  • Safety Timer with Reset Control
  • Very Low Battery Current when Charger Inactive"

Product List

If you wish to buy products or product samples, please log in to your onsemi account.

Search

Close Search

Products:

1

Share

Product Groups:

Orderable Parts:

1

Product

Status

CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Type

Number of Cells Charged

VCC Min (V)

VCC Max (V)

ID Max (µA)

Reference Price

FAN54046UCX-T

Loading...

Obsolete

CAD Model

Pb

A

H

P

WLCSP-25

1

260

REEL

3000

N

Charger

1

-

-

5

Price N/A

More Details

Show More

1-25 of 25

Products per page

Jump to :