ChargerCore Family (Application-Specific MCU for Battery Charger)
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Spec. Sheet(Eng)

Brief User's Manual (Eng)

ChargerCore2.0

20-MLF

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General Description
ChargerCore2.0 Family is optimized AS-MCU for Li-Ion battery Charger.
Application Areas
Celluar phone battery charger.
Features
  • CPU
    - 8bit turbo 80C52 architecture
    - 4 cycles/1 machine cycle
    - Instruction level compatible with Intel 80C52
     
  • 2kBytes EPROM
     
  • 128 Bytes RAM
     
  • Operating voltage
    - MCU                   : +2.4V ~ +5.5V
    - CC/CV Controller : +2.5V ~ +12.0V
     
  • Operating Frequency
    - Max. 20 MHz@4.5V~5.5V
    - Max. 10 MHz@2.4V~3.3V

  • Power consumption
    - MCU                   : -40¡É to 120¡É
    - CC/CV Controller : 0¡É to 85¡É
     
  • Max. Programmable 12(20-MLF) I/O Pins
    - Pull-up Control by S/W
    - Puch-pull Output
     
  • Low Voltage Detector : +2.3V
     
  • Internal Ring OSC. : 3.6MHz@5V (±15%)
     
  • 16-bit Programmable Watchdog Timer
     
  • Two 16-bit Timer/Counters
     
  • 8-channel 10-bit ADC
    - Max 100k SPS (@FADC = 8 MHz)
    - Programmable input clock frequency
     
  • 1-channel UART Comm.
     
  • 9 Interrupt Sources
    - Timer 0/1, WDT, ADC, PWM, UART
    - Three External Interrupt Sources: Both Edge / Level
    - Two-levelInterrupt Priority
     
  • Reset Sources
    - On-chip Power-On-Reset(POR)
    - External Reset
    - Low Voltage Detector Reset (LVR)
    - Watchdog Timer Reset
     
  • Power Down Wake-up Sources
    -Reset Sources + 2 External Interrupt INT0B/INT1B (LevelDetect)
     
  • Power consumption
    - active current : Max 10 mA@+5.0V, 20 MHz
    - stop current : Max 1uA
     
  • E.S.D. protection up to 2000V

  • Latch-up protection up to ±200mA

  • Package
    - 20-MLF (5mm x 5mm)
     
  • Complete Charger for Li-Ion Batteries

  • Very Low Thermal Dissipation

  • CC(Constant Current) Profile
    • Charger Current : Dependent on Maker
    • ID
       - 1.5K¥Ø: 750mA ±50mA
      - 4.7K¥Ø: 750mA ±50mA
      - 27K¥Ø: 450mA ±50mA
  • CV (Constant Voltage) Profile
    - Charge Voltage : +4.2V (-0.05V/+0.03V)
  • Wake-up
    - Wake-up Charging when the initial battery voltage is below 2.5V
    - 30 times repeat (charging during 5sec, standby during 2sec)
    - Fast Charging at 2.5V above
  • Current Cut-off
    - 30 ~ 100mA
  • Recharge when below +4.07V ±0.05V
  • Chargeable Ambient Temperature Range
    - -5¡É±3¡É¢¦45¡É±3¡É
  • Charging Time
    - Fast Charge : 4 hours
    - Recharge     : 2 hours
  • Over-Voltage Protection
    - Charge Cut-off when 4.35V±0.05 above
  • Error Mode
    - When battery voltage is greater than 4.35V
    - Short or Open in charging
    - Detecting Abnormal Battery
  • LED Display
    - Red : in charging or in wake-up mode
    - Green : charge completion or in recharging
    - Yellow : Stand-by due to Temperature Emergency
    - Yellow Flickering : in Error mode
     
  • Korea TTA Specification Certification