SL71053

Semiconductor SL71053 CC, CV Control for Battery Charger & Adaptor Description SL71053 is a highly integrated solution for SMPS applications requiring CV (constant voltage) and CC (constant current) mode. SL71053 integrates one voltage reference, two operational amplifiers (with ORed outputs-common collectors), and a current sensing circuit. The voltage reference combined with one operational amplifier makes it an ideal voltage controller, and the other low voltage reference combined with the other operational amplifier makes it an ideal current limiter for output low side current sensing. the current threshold is fixed, and precise. the only external components are : -. a resistor bridge to be connected to the output of the power supply (adapter, battery charger) to set the voltage regulation by dividing the desired output voltage to match the internal voltage reference value. -. a sense resistor having a value and allowable dissipation power which need to be chosen according to the internal voltage threshold. -. optional compensation components. SL71053, housed in one of the smallest package available, is ideal for space shrink applications such as adapters and battery chargers. Features Constant voltage & constant current control www.DataSheet4U.com Wide operating voltage range (2.2V to 14V) Precision internal voltage reference (1.21V ±1.0%) Precision internal CC AMP reference (80mV Typ.) Low external component count Current sink output stage Easy compen...