EUP3466 Datasheet | Eutech Microelectronics

CC/CV Mode Step-Down Converter DESCRIPTION The EUP3466 is a step-down converter capable of driving 3A continuous load with excellent line and load regulation. The EUP3466 operates in either CC (Constant Current) mode or CV (Constant Voltage) mode with an input voltage range from 8V to 36V. The EUP3466 provides programmable cable pensation by adjusting external resistor divider. The EUP3466 stops switching when the output reaches over voltage threshold which is programmed by external resistor divider. Fault protection includes secondary cycle-by-cycle current limit, short circuit protection and thermal shutdown. In shutdown mode the regulator draws 3µA of supply current. Internal soft-start minimizes the inrush supply current and the output overshoot at initial startup. The EUP3466 is available in SOP-8 package. Features 8V to 36V Wide Input Operating Range 40V Input Voltage Surge Fixed 80k Hz Switching Frequency CC/CV Mode Control Up to 3A Output Current +/- 1% Voltage Reference Accuracy +/- 4% Constant Current Accuracy Programmable Cable pensation Internal Soft Start Output Over Voltage Protection Foldback Short Circuit Protection Secondary Cycle-by-Cycle Current Limit Thermal Shutdown Available SOP-8 Package Ro HS pliant and 100% Lead(Pb)-Free Halogen-Free APPLICATIONS Vm Typical Application Circuit b Ry ‘ w fo w .go w w om c . h tec Car Charger Portable charger applications DC/DC converters with current limited Figure 1. Application Circuit DS3466 Ver0.1 Sep. 2013 Pin Configurations Package Type Pin Configurations SOP-8 Pin Description Pin Name GND FB ISENISEN+ SW VIN OVEN P SOP-8 1 2 3 4 5 6 7 8 Ground. Output Feedback Input. Current sense negative input pin. Current sense positive input pin. Power Switcher Output. Input Supply Pin. OV (output over voltage) threshold setting pin and enable Input. Drive OVEN voltage logic high to turn off the converter. Loop pensation pin. DESCRIPTION Vm ww R w‘ yb om c . h tec o...