Nicd/nimh Charge Controller With Negative Dv And Peak Voltage Detection Termination

  The BQ2002C Fast-Charge IC is a lowcost CMOS battery-charge controller providing reliable charge termination for both NiCd and NiMH Battery applications. Controlling a current-limited or constant-current supply allows the BQ2002C to be the basis for a costeffective stand-alone or system-integrated charger. The BQ2002C integrates fast charge with pulsed-trickle control in a single IC for charging one or more NiCd or NiMH Battery cells. Fast charge is initiated on application of the charging supply or Battery replacement. For safety, fast charge is inhibited if the Battery temperature and voltage are outside configured limits. Fast charge is terminated by any of the following: n n n n n Peak voltage detection (PVD) Negative delta voltage (-?V) Maximum voltage Maximum temperature Maximum time ? ? ? ? ? ? After fast charge, the BQ2002C pulsetrickles the Battery per t he preconfigured limits. Fast charge may be inhibited using the INH pin. The BQ2002C may also be placed in lowstandby-power mode to reduce system power consumption. Pin Connections Pin Names TM LED BAT Timer mode select input Charging status output Battery voltage input System ground TS VCC INH CC Temperature sense input Supply voltage input Charge inhibit input Charge control output TM LED BAT VSS 1 2 3 4 8 7 6 5 CC INH VCC TS VSS 8-Pin DIP or Narrow SOIC PN-200201.eps SLUS136 - SEPTEMBER 1997 1 BQ2002C Pin
Item: BQ2002C
File Size : 10 KB
Pages : 13 Pages

Other Part Numbers in this pdf file

BQ2002CSNTRG4   BQ2002CSNTR   BQ2002CSNG4   BQ2002CSN   BQ2002CPNE4   BQ2002CPN  
Texas Instruments Incorporated
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