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					SMB139/239 – World’s Smallest Battery Chargers
   offer Highest Level of Design Flexibility
 Highlights
     1.3mm x 2.1mm Chip Scale Package Trims PCB Footprint by 69%
     Configurable Charging Parameters for Static & Dynamic Design Flexibility
     Advanced Protection Features Simplify Compliance with Safety Standards
    4.35V to 6.5V                                                                                            Up to 525mA
    10V Tolerance                                                                                           Charge Current
                                                                                                                               Battery
                                             IN             SMB239 OUT
                                                                                                                               OVLO      Features
                    4.7uF
                                                                                  BATT                                                     +4.35V to +6.5V Input Range
                                                                                                              4.7uF           1-cell       OV Protection & 10V Hold-off Voltage
                                                                                                                           Li+ Battery
                                                                                                                                           Charge Current: 210/525mA (SMB139/239)
I2C Communication                                                                THERM                                                     Tiny 1.3 x 2.1 CSP package
                                                                                                                                 RLIM
                                         SCL                                                                                               I2C/SMBus Serial Interface
                                                                                                                                RED
                                                                                                                                           Fully Programmable Algorithm in EEPROM
                                         SDA
                                                                                                                                LED                Fast-charge, Pre-charge Current
                                                                                                                                                   Termination Current
                                                                  GND             STAT
                                                                                                                                                   Float Voltage
                                                                                                                                                   Pre-Charge Threshold
                                                                                                                                                   Cell Temperature Safety Limits
                                                                                                                                                   Safety Timer Limits
                                                                                                                                                   STAT Output Behavior
   Applications                                                                                                                            Charge Status & Fault Indicator & Registers
          Bluetooth & Stereo Headsets                                                                                                      Battery Over-voltage Monitor
          Digital Still Cameras                                                                                                            Battery Cell Temperature Monitor
          Flash-based MP3 Players                                                                                                          HW-based Charge Current Level Selector
          Noise Cancelling Headphones                                                                                                      Option for Controlling Charge Initiation
          Wrist Watches & PDAs                                                                                                           based on Battery Voltage Level
          Robotic Toys                                                                                                                     ±1% Float Voltage Accuracy
          Wireless Video Game Controllers                                                                                                  Very Low Reverse Leakage Current

                                                                                                   T
                                                  Fa                                            OA GE
                                                    s                                         FL LTA
                                                  Ch t ch
                                                    ar ar                                     VO


 200mA
                                                      ge ge
                                                         Tr to
                                                           an T a
                                                             si t p e
                                                                 ion r                                                4V
                                                                                                                                         Configurable Charging Parameters
                                                                                                                                         Allow Unparalleled Static & Dynamic
                                                                                         G
  160mA
                                                                                     RGIN
                                                                                  CHA RENT
                                                                                   CUR                                                   Design Flexibility:
                                                                                                                                         - Pre-Charge Current
                                             CH OL
                                               AR TA
                                               V




  120mA                                                                                                               3V
                                                                                                                                         - Pre-Charge to Fast Charge Voltage
                                                 G GE
                                                   IN
                                                      G




                              Pr
                            C h e ch a
                           (D arge rge                                                                                                   - Fast Charge Current
                                                                                             Ch




                             ee          t
                                p Tr o F
                                                                                                arg




  80mA                      Th Dis ans ast
                                                                                                                                         - Float Voltage
                                                                                                eT




                               res ch itio
                                  ho arg n
                                                                                                  erm




                                     ld) e

                                                                                                                                         - Termination Current
                                                                                                      ina
                                                                                                       tion




  40mA                                                                                                                2V
                                                                                                                                         - Temperature Limits
                                                                                                                                         - Charge Safety Timers
            t(precharge)                                             t(charge)




                                                                                             SUMMIT
                                                                                             MICROELECTRONICS, Inc.
                                                                                     “Programmable Power for a Digital World”
SMB139/239 – World’s Smallest Battery Chargers
   offer Highest Level of Design Flexibility
    GUI allows easy programming of all functions and parameters
                     in a real-time environment

        Battery Charger Configuration                             Real-time Status/Fault Control




                          Complete Programmable Battery Charger Offering
  Features                                    SMB135         SMB137B          SMB339       SMB139/239
  Battery Charging Type                     Switch-mode     Switch-mode    Switch-mode        Linear
  Input Voltage - Operating/Hold-Off (V)       6.5/10          6.2/18         6.2/18          6.5/10
  Maximum Charge Current (mA)                    900            1500           1250          210/525
  Switching Frequency (MHz)                     1.25              3              3             N/A
  TurboCharge™                                Manual         Automatic      Automatic          N/A
  CurrentPath ™                                                 YES
  Automatic Power Source Detection                              YES            YES
  Automatic Input Current Limit                                 YES            YES
  Low Battery Recovery Mode (LBR™)                              YES
  USB On-The-Go Mode                                            YES            YES
  Programable Charging Algorithm                YES             YES            YES             YES
  Input Current Limit                                           YES            YES             N/A
  OV/UV/OC Protection                           YES             YES            YES             YES
  Battery Pack Temperature Monitor              YES             YES            YES             YES
  IEEE 1725 Compliant                           YES             YES            YES             YES
  Package Type                             CSP-15, QFN-32     CSP-30      CSP-20, QFN-24   CSP-15/CSP-8



                                       SUMMIT
                                       MICROELECTRONICS, Inc.
                                   “Programmable Power for a Digital World”

				
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Tags: Fast, charging
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posted:4/25/2011
language:English
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Description: Fast charging means can be made within 1 ~ 5h battery fully charged state at or near a charging method. Commonly used in traction batteries needed recovery in a short time to charge a fully charged state. Fast charging of battery performance and life damage. The normal battery charge takes about 10 ~ 20h, how to fast charge without compromising the performance and battery life is that people are a hot research topic.