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Discrete Power Bank Solution

Power Bank is a very compact gadget that provides extra power for mobile devices like mobile phones, tablets etc. Although its features depend on the battery cell and customers’ specification, the design has minor changes in its block diagram:

Discrete Power Bank Solution- KingpexDiscrete Power Bank Solution- Kingpex

Charging circuit: it implements the complete charging logic for single cell Lithium-ion battery.

We offer solutions as following:

FP8101 – 500mA Linear Li-lon Battery Charger (SOT-23)

FP8102 – 1A Linear Li-lon Battery Charger (SOP-8)

FP8202 – 2A Switching Li-lon Battery Charger (SOP-8/DFN-10)

 

FP8202 Excellence:

  • Up to 2A Programmable Charge Current
  • No external MOSFET, Sense Resistor, or Blocking Diode Required
  • Preset Charge Voltage with ±1% Accuracy
  • Automatic Recharge
  • 2.9V Trickle Charge Voltage
  • C/10 Charge Termination
  • Thermal Protection
  • Charge Status Indicators for No Battery and Charge Failure Display
  • Package: SOP-8L(EP) / DFN-10(EP)

 

Boost Converter: it steps up the 2.9V - 4.2V battery voltage to 5V.
We recommend several boost solutions as following:

FP6291 built-in 2.5A MOS for 1A output current (SOT23-6)

FP6715 built-in 2.5A MOS (Syn.) for 1A output current (SOT23-6)

FP6276 built-in 6A MOS (Syn.) for 2.1A output current (SOP-8)

FP6277 built-in 7A MOS (Syn.) for 3.1A output current (SOP-8)

FP5205 for up to 2.7A output current

 

FP6715 Excellence

  • High Efficiency up to 93% 
  • Low RDS (ON) Integrated Power MOSFET : NMOS 80mΩ / PMOS 120mΩ
  • Wide Input Voltage Range: 2.5V to 5.5V 
  • Precision Feedback Reference Voltage: 0.8V (±2%) 
  • Low Quiescent Current
  • Over-Temperature Protection with Auto Recovery 
  • Over voltage protection
  • Package: SOT23-6L

FP6276 Excellence

  • High Efficiency up to 95%
  • Built-in low RDS (ON) MOSFET : NMOS 40mΩ / PMOS 40mΩ
  • Input Voltage Range: 2.4V to 4.5V
  • Precision Feedback Reference Voltage: 0.6V (±2%)
  • Shutdown current <1μA
  • Protection : OTP, OCP, SCP
  • Package: SOP-8

 

Battery Gauge circuit: EG2801 is a Lithium-ion/Li-Pol battery Fuel gauge IC that provides fuel gauging for single-cell Li-ion battery packs. 
 

EG2801 Excellence

  • Provide high accuracy of Battery Status and Battery Capacity Monitoring
  • Calculate the result of the Battery Capacity under various conditions
  • Report of Battery Charger/Discharge Status, Time ,Battery Voltage ,Current and Temperature
  • Battery Security Control
  • No External MCU required
  

Note: The referred parts are based in a generic design. If your project required more specific features, contact us. We have a large range of products to fit your needs.

Check Power Bank PCB Module for ready total solution! 


Contact us and get more information: service@kingpex.com