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FAN54120: Single-Cell Linear Battery Charger, 500mA, with power back capability for Small Battery and IoT Applications

Datasheet: 500 mA USB Compatible Single Cell Li-Lon Linear Charger with “Power Back” Capability
Rev. 1 (447kB)
Product Overview
»View Material Composition
» Product Change Notification
The FAN54120 is a USB-compatible single-cell, linear Li-Ion battery charger with "Power Back" Capability, It supports dead battery revival, pre-charge, fast charge, and float charge states. Fast charging current (IFAST) is set with an external resistor. Pre-charge (IPRE) and charge complete (ICHGEND) currents are factory set at IFAST/5.2 and IFAST/10, respectively. An open-drain ("STAT" ) pin provides charge and/or fault status indication. The "Power Back" enables to power accessories from the battery
Features   Benefits
     
  • Fully integrated charger for Single Cell Li-Ion or Li-Polymer battery
  
  • Easier system design and no host micro needed - no software development
  • Factory Configured Charge Voltage
  
  • Three float voltages (4.2V, 4.25V and 4.35V) are available via factory OTP.
  • Charge Voltage Accuracy: (+/-0.5%) and charge current accuracy (+/-4%)
  
  • Good charge accuracy can help over charge protection
  • User determined Fast charge Current via external resistor
  
  • Customized charge current
  • Small foot print
  
  • Enable the system miniaturization and cost reduction
  • Ultra low Battery Discharge Current (<120nA)
  
  • low power consumption
  • 28 V Absolute Maximum Input Voltage
    
  • True Reverse Current Blocking
    
  • Adaptive Thermal Regulation
    
  • Supports JEITA Safe-to-Charge operation with an external NTC
    
  • "Power Back" functionality to power accessories from the battery
    
Applications   End Products
  • Io T Devices
  • E-Cigs / Vapes
  • Personal Mobile Devices (games, camera, etc.)
  • Point-of-Sale instruments
  • Toys
  
  • TWS earbuds
Technical Documentation & Design Resources
Design & Development Tools (1) Package Drawings (2)
Software (7) Videos (8)
Data Sheets (1) Evaluation Board Documents (12)
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
SECO-RSL10-CAM-GEVB Active
Pb-free
RSL10 Smart Shot Camera
STR-RSL10-MESH-KIT-GEVK Active
Pb-free
Strata Enabled RSL10 Bluetooth® Low Energy Mesh Platform
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
FAN54120MP420X Active
Pb-free
Halide free
FAN54120, 500mA single cell linear charger with 4.2V float voltage in DFN package DFN-6 506DQ 1 260 Tape and Reel 3000 $0.3333
FAN54120MP425X Product Preview
Pb-free
Halide free
FAN54120, 500mA single cell linear charger with 4.25V float voltage in DFN package DFN-6 506DQ 260 Tape and Reel 3000 Contact Sales Office
FAN54120MP435X Product Preview
Pb-free
Halide free
FAN54120, 500mA single cell linear charger with 4.35V float voltage in DFN package DFN-6 506DQ 1 260 Tape and Reel 3000 Contact Sales Office
FAN54120UC420X Active 
Pb-free
Halide free
FAN54120, 500mA single cell linear charger with 4.2V float voltage in WLCSP package WLCSP6 1.36x0.76x0.581 567XQ 1 260 Tape and Reel 3000 $0.3333
FAN54120UC425X Active 
Pb-free
Halide free
FAN54120, 500mA single cell linear charger with 4.25V float voltage in WLCSP package WLCSP6 1.36x0.76x0.581 567XQ 1 260 Tape and Reel 3000 $0.3333
FAN54120UC435X Active 
Pb-free
Halide free
FAN54120, 500mA single cell linear charger with 4.35V float voltage in WLCSP package WLCSP6 1.36x0.76x0.581 567XQ 1 260 Tape and Reel 3000 $0.3333
Market Leadtime (weeks) : 13 to 16
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
Type
Number of Cells Charged
VCC Min (V)
VCC Max (V)
ID Max (µA)
Package Type
FAN54120MP420X  
 FAN54120, 500mA single cell linear charger with 4.2V float voltage in DFN package 
 $0.3333 
Pb
H
 Active   
Li-Ion/Polymer
1
4
6
0.3
DFN-6
FAN54120MP425X  
 FAN54120, 500mA single cell linear charger with 4.25V float voltage in DFN package 
Pb
H
 Product Preview   
Li-Ion/Polymer
1
4
6
0.3
DFN-6
FAN54120MP435X  
 FAN54120, 500mA single cell linear charger with 4.35V float voltage in DFN package 
Pb
H
 Product Preview   
Li-Ion/Polymer
1
4
6
0.3
DFN-6
FAN54120UC420X  
 FAN54120, 500mA single cell linear charger with 4.2V float voltage in WLCSP package 
 $0.3333 
Pb
H
 Active   
Li-Ion/Polymer
1
4
6
0.3
WLCSP6 1.36x0.76x0.581
FAN54120UC425X  
 FAN54120, 500mA single cell linear charger with 4.25V float voltage in WLCSP package 
 $0.3333 
Pb
H
 Active   
Li-Ion/Polymer
1
4
6
0.3
WLCSP6 1.36x0.76x0.581
FAN54120UC435X  
 FAN54120, 500mA single cell linear charger with 4.35V float voltage in WLCSP package 
 $0.3333 
Pb
H
 Active   
Li-Ion/Polymer
1
4
6
0.3
WLCSP6 1.36x0.76x0.581
Case Outlines
506DQ    567XQ   
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