MAX1508YETA

The MAX1508YETA an intelligent, stand-alone constant-current,constant-voltage (CCCV), thermally regulated linear charger for a single-cell lithium-ion (Li+) battery. The MAX1508YETA integrates the current-sense circuit, MOS pass element, and thermal-regulation circuitry, and also eliminates the reverse-blocking Schottky diode, to create the simplest and smallest charging solution for hand-held equipment.

Features of the MAX1508YETA are:(1)stand-alone linear 1-Cell Li+ battery charger;(2)no external FET, reverse-blocking diode, or current-sense resistor required;(3)programmable fast-charge current (0.8A max);(4)proprietary die-temperature regulation control;(5)+4.25V to +13V input voltage range with input overvoltage protection (OVP) above +7V;(6)charge-current monitor for fuel gauging;(7)low dropout voltage-130mV at 0.425A;(8)input power-source detection output (ACOK);(9)soft-start limits inrush current;(10)no prequalification state for the MAX1508Y and MAX1508Z;(11)charge status output (CHG) for LED or microprocessor interface;(12)small 3mm x 3mm 8-Pin thin DFN package,0.8mm high;(13)active-low charge enable (EN) (MAX1508 and MAX1508Z);(14)active-high charge enable (EN).Applications of the MAX1508YETA are:(1)cellular and cordless phones;(2)PDAs;(3)digital cameras and MP3 players;(4)USB appliances;(5)charging cradles and docks;(6)bluetooth equipment.

The absolute maximum ratings of the MAX1508YETA can be summarized as:(1):the parameter is IN, CHG to GND,the rating is -0.3 to +14,the unit is V;(2):the parameter is VL, BATT, ISET, EN, EN, ACOK to GND,the rating is -0.3 to +6,the unit is V;(3):the parameter is VL to IN,the rating is -14 to +0.3,the unit is V;(4):the parameter is IN to BATT continuous current,the rating is 0.9,the unit is A;(5):the parameter is continuous power dissipation (TA = +70) 8-Pin TDFN (derate 24.4mW/ above +70),the rating is 1951,the unit is mW;(6):the parameter is short-circuit duration,the rating is continous;(7):the parameter is operating temperature range,the rating is -40 to +85,the unit is ;(8):the parameter is junction temperature,the rating is +150,the unit is ;(9):the parameter is storage temperature range,the rating is -65 to +150,the unit is ;(10):the parameter is lead temperature (soldering,10sec),the rating is +300,the unit is .