Linear Technology introduces the LTC4065 and LTC4065A, fully integrated standalone linear battery chargers that can charge a single-cell Li-ion battery up to 750 mA without overheating the device or surrounding components. These ICs offer timer termination, recharge, trickle charge, and C/10 detection and are housed in a 6-lead 2 × 2 mm DFN package. The LTC4065/A requires no external MOSFET, sense resistor or blocking diode. A patented thermal regulation scheme prevents the junction temperature of the IC from exceeding 115° C by reducing charge current during high power or high ambient temperature operation. Other features of the LTC4065/A include a charge current monitor output for charge termination, a 4.2 V 0.5% accurate float voltage, and 5% charge accuracy. Applications include digital still cameras, portable point-of-sale and diagnostic equipment, cell phones, PDAs and USB-equipped handheld devices.
Linear Technology Corp.