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FAN54120UC435X The ON Semiconductor FAN54120UC435X is a single-cell Li-Ion linear battery charger. It supports USB compatibility and features a 4.35V charge voltage and 500mA charge current.
Mfr Part #:

FAN54120UC435X

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor FAN54120UC435X is a single-cell Li-Ion linear battery charger. It supports USB compatibility and features a 4.35V charge voltage and 500mA charge current.
✓ Total Stock: 1,000 pcs
$ Price Range: $0.75

FAN54120UC435X Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Braun Electronic Components ✓
Non-Authorised Inventory information
1,000 pcs
On Request
1000 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

FAN54120UC435X Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Chemistry
Battery Pack Voltage
Charge Current
Current
Fault Protection
Input Voltage
Interface
Mounting Type
Number of Cells
Operating Temperature
Operating Voltage
Programmable Features
Supplier Device Package
Tape & Reel
Voltage
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FAN54120UC435X Description

Short technical summary and product information.

The FAN54120UC435X from ON Semiconductor is a fully integrated, single-cell Li-Ion or Li-Polymer linear charger designed for ease of use. It supports dead battery revival, pre-charge, fast charge, and float charge states.

 

Key electrical specifications include a factory-configured charge voltage of 4.35V with ±0.5% accuracy and a user-determined fast charge current of up to 500mA with +4% accuracy. The device operates from a 6V supply and can withstand a maximum input voltage of 28V. It features true reverse current blocking and ultra-low battery discharge current (<120 nA).

 

This charger is suitable for applications such as IoT devices, e-cigs, personal mobile devices, and toys. It includes adaptive thermal regulation and supports JEITA safe-to-charge operation with an external NTC. The FAN54120UC435X also offers a "Power Back" capability to source accessories from the battery.

 

The device is available in a compact 6-DFN (2x2 mm) package with surface mount mounting type. It operates within an ambient temperature range of -30°C to 85°C.

FAN54120UC435X Quick Information

Product Type: Linear Battery Charger
Canonical Name: FAN54120UC435X Single Cell Li-Ion Linear Charger
Subcategory: Battery Chargers

FAN54120UC435X Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

FAN54120UC435X Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

FAN54120UC435X Features

  • Fully integrated single-cell Li-Ion charger.
  • 4.35V factory configured charge voltage.
  • 500mA user determined fast charge current.
  • USB compatible interface.
  • Compact 6-DFN (2x2 mm) package.

FAN54120UC435X Applications

  • Ideal for IoT devices.
  • Suitable for e-cigarettes and vapes.
  • Used in personal mobile devices.
  • Applicable for electronic toys.
  • Supports point-of-sale instruments.

FAN54120UC435X FAQs

6 frequently asked questions generated from this part’s specifications.
What is the charge voltage for the FAN54120UC435X?

The charge voltage is 4.35V.

What is the maximum charge current supported?

The fast charge current is 500mA.

What is the operating voltage for this charger?

The operating voltage is 6V.

What type of battery chemistry does the FAN54120UC435X support?

It supports Lithium Ion or Lithium Polymer batteries.

What package type is the FAN54120UC435X supplied in?

It is supplied in a 6-DFN (2x2 mm) package.

What is the operating temperature range?

The operating temperature range is -30°C to 85°C (TA).

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