CEP8113AV1降压DCDC.pdfVIP

~ 1 ~ ChipExtra Semiconductor CEP8113A Rev 2.0, Apr, 2014 FEATURES ? 42V Input Voltage Surge ? 40V Steady State Operation ? Up to 3.5A output current ? Output Voltage 2.5V to 10V ? Resistor Programmable ? Current Limit from 1.5A to 3.5A ? Cable Compensation from 0? to 0.4? ? ±7.5% CC Accuracy ? Compensation of Input /Output Voltage Change ? Temperature Compensation ? 2% Feedback Voltage Accuracy ? Up to 94% Efficiency ? 125kHz Switching Frequency Eases EMI Design ? Advanced Feature Set ? Integrated Soft Start ? Thermal Shutdown ? Protection Against Shorted ISET Pin ? Patented E-LTI technology improves load transient response. ? SOP-8EP Package ? Long -waiting-time hiccup mode APPLICATIONS ? Car Charger/ Adaptor ? Rechargeable Portable Devices ? General-Purpose CC/CV Supply GENERAL DESCRIPTION CEP8113A is a wide input voltage, high efficiency CC step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode. CEP8113A provides up to 3.5A output current at 125kHz switching frequency. CEP8113A provides OVP pin for output over voltage protection. Protection features include cycle-by-cycle current limit, thermal shutdown, and frequency foldback at short circuit. The devices are available in a SOP-8EP package and require very few external devices for operation. Typical Application Circuit for Car Charger Wide-Input Sensorless CC/CV Step-Down DC/DC Converter ~ 2 ~ ChipExtra Semiconductor CEP8113A Rev 2.0, Apr, 2014 ORDERING INFORMATION PART NUMBER OPERATION TEMPERATURE RANGE PACKAGE PINS PACKING CEP8113ASP8 -40°C to 85°C SOP-8EP 8 TAPE REEL PIN CONFIGURATION PIN DESCRIPTIONS Pin No. NAME Description 1 HSB High Side Bias Pin. This provides power to the internal high-side MOSFET gate driver. Connect a 100nF capacitor from HSB pin to SW pin. 2 I