LT1513CT7-2

The LT1513CT7-2 is a 500KHz current mode switching regulator specially configured to create a constant-or programmable-current/constant-voltage battery charger.The LT1513CT7-2 can also drive a CCFL royer converter with high efficiency in floating or grounded mode.

Features of the LT1513CT7-2 are:(1)charger input voltage may be higher,equal to or lower than battery voltage;(2)charges any number of cells up to 20V;(3)1% voltage accuracy for rechargeable lithium batteries;(4)100mV current sense voltage for easy current programming;(5)battery can be directly grounded;(6)500kHz switching frequency minimizes inductor size;(7)charging current easily programmable or shut down.Applications of the LT1513CT7-2 are:(1)charging of NiCd,NiMH,Lead-Acid or lithium rechargeable cells;(2)precision current limited power supply;(3)constant-voltage/constant-current supply;(4)transducer excitation;(5)universal input CCFL driver.

The absolute maximum ratings of the LT1513CT7-2  can be summarized as:(1):the parameter is supply voltage,the value is 30,the unit is V;(2):the parameter is switch voltage,the value is 40,the unit is V;(3):the parameter is S/S pin voltage,the value is 30,the unit is V;(4):the parameter is FB pin voltage,the value is ±10,the unit is V;(5):the parameter is VFB pin current,the value is 10,the unit is mA;(6):the parameter is IFB pin voltage,the value is ±10,the unit is V;(7):the parameter is operating junction temperature range,the value is 0 to 125,the unit is ;(8):the parameter is operating junction temperature range short circuit,the value is 0 to 150,the unit is ;(9):the parameter is storage,the value is -65 to 150,the unit is ;(10):the parameter is lead temperature (soldering,10 sec),the value is 300,the unit is .