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FAN5405 - Fairchild
Manufacturer:
Fairchild
ManyChip's Part#:
MC1491897472
Datasheet:
Datasheet 3D Model
Description:
USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator
Stock Locations:
Availability:
286 pcs In Stock
MOQ:
1 pcs
Unit Price:
$ 0

Updated at 17/06/2025 10:30:15(UTC+8)

Certifications

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Description

Description
The FAN5400 family (FAN540X) combines a highly integrated switch-mode charger, to minimize single-cell Lithium-ion (Li-ion) charging time from a USB power source, and a boost regulator to power a USB peripheral from the battery.
The charging parameters and operating modes are programmable through an I2C Interface that operates up to 3.4Mbps. The charger and boost regulator circuits switch at 3MHz to minimize the size of external passive components.
The FAN540X provides battery charging in three phases: conditioning, constant current, and constant voltage.
Features
■ Fully Integrated, High-Efficiency Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs
■ Faster Charging than Linear
■ Charge Voltage Accuracy: ±0.5% at 25°C
±1% from 0 to 125°C
■5% Input Current Regulation Accuracy
■5% Charge Current Regulation Accuracy
■ 20V Absolute Maximum Input Voltage
■ 6V Maximum Input Operating Voltage
■ 1.25A Maximum Charge Rate
■ Programmable through High-Speed I2C Interface (3.4Mb/s) with Fast Mode Plus Compatibility
– Input Current
– Fast-Charge / Termination Current
– Charger Voltage
– Termination Enable
■ 3MHz Synchronous Buck PWM Controller with Wide Duty Cycle Range
■ Small Footprint 1H External Inductor
■ Safety Timer with Reset Control
■ 1.8V Regulated Output from VBUS for Auxiliary Circuits
■ Weak Input Sources Accommodated by Reducing Charging Current to Maintain Minimum VBUS Voltage
■ Low Reverse Leakage to Prevent Battery Drain to VBUS
■ 5V, 300mA Boost Mode for USB OTG for 2.5 to 4.5V Battery Input
Applications
■ Cell Phones, Smart Phones, PDAs
■ Tablet, Portable Media Players
■ Gaming Device, Digital Cameras

Show

FAN5405 Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Case/Package	WLCSP-20

Order guide

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- Please confirm with the logistics company in advance for remote areas.
(Additional charges ($35-$50) may apply for delivery in these areas)
- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- Carefully inspected and packed by ManyChip warehouse
- Vacuum packaging
- Anti-static packaging
- Shockproof foam
The terms here are for reference only, the actual terms are subject to the sales quotation.
- Please confirm product specifications when ordering.
- MOQ refers to the minimum order quantity required to purchase each part.
- If you have special ordering instructions, please indicate them on the ordering page.
- Inspection (PSI) will be performed prior to shipment.
- Income Quality Control (IQC), 1000+ qualified dealers.
- Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device.
- Decapsulation control
- X-ray control
- XRF inspection
- Electrical testing
- Surface testing
-Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity

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