ACT4515 - Active-Semi

ACT4515 Wide-Input Sensorless CC/CV Step-Down DC/DC Converter

ACT4515 is a wide input voltage, high efficiency Active CC step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode. ACT4515 provides up to 1.5A output current at 210kHz switching frequency. Active CC is a patent-pending control scheme to achieve highest accuracy sensorless constant current cont.

Features

• Up to 40V Input Voltage
• Up to 1.5A Constant Output Current
• Output Voltage up to 12V
• Patent Pending Active CC 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 0Ω to 0.5Ω
• ±7.5% CC Accuracy − Compensation of Input/ Output Voltage Change − Temperature Compensation − Independent of Inductance and Inductor DCR
• 2% Feedback Voltage Accuracy
• Up to 93% Efficiency
• 210kHz Switching Frequency Eases EMI Design
• Advanced Fe.