ACT4514 - Active-Semi

ACT4514 Wide-Input Sensorless CC/CV Step-Down DC/DC Converter

ACT4514 is a wide input voltage, high efficiency ActiveCC step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode. ACT4514 provides up to 1.5A output current at 210kHz switching frequency. ActiveCC is a patent-pending control scheme to achieve highest accuracy sensorless constant current contro.

Features

• Up to 40V Input Voltage
• Up to 1.5A Constant Output Current
• Output Voltage up to 12V
• Patent Pending ActiveCC Constant Current Control − Integrated Current Control Improves Efficiency, Lowers Cost, and Reduces Component Count
• Resistor Programmable Outputs − Current Limit from 400mA to 1500mA − Patented cable compensation from DC Cable Compensation from 0Ω to 0.5Ω
• 2% Feedback Voltage Accuracy
• Up to 93% Efficiency
• 210kHz Switching Frequency Eases EMI Design
• Advanced Feature Set − Integrated Soft Start − Thermal Shutdown − Secondary Cycle-by-Cycle Current Limit − Protection Agains.