MAX1501

The MAX1501 intelligent, constant-current, constantvoltage(CCCV), temperature-regulated battery charger charges a single lithium-ion (Li+) cell or three-cellNiMH/NiCd batteries. The device integrates the currentsense resistor, PMOS pass element, and thermalregulation circuitry, while eliminating the reverseblockingSchottky diode to create the simplest charging solution for hand-held equipment.

Features of the MAX1501 are:(1)stand-alone or microprocessor-controlled (P) linear 1-cell Li+ or 3-cell NiMH/NiCd battery charger; (2)no FET, reverse-blocking diode, or current-sense resistor required; (3)1.4A (max) programmable fast-charge current; (4)+95°C, +115°C, and +135°C proprietary programmable die temperature regulation control; (5)4.5V to 13V input voltage range with input overvoltage (OVLO) protection above 6.5V; (6)programmable top-off current threshold: 10%, 20%, or 30% of the fast-charge current; (7)charge-current monitor for fuel gauging.

The absolute maximum ratings of the MAX1501 can be summarized as:(1): IN, INP, RLED, GLED to GND is -0.3V to +14V; (2): IN to INP  is -0.3V to +0.3V; (3): VL, BATT, SETI, ACOK, MODE, CHGEN, SELV, FULLI, TMAX, TEMP to GND is -0.3V to +6V; (4): VL to IN is -14V to +0.3V; (5): continuous power dissipation (TA = +70°C):16-Pin 5mm . 5mm Thin QFN(derate 21.3mW/°C above +70°C) is 1702mW; (6): operating temperature range  is -40°C to +85°C; (7): junction temperature is +150°C; (8): storage temperature range  is -65°C to +150°C; (9): lead temperature (soldering, 10s)  is +300°C.