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ACT4515 Datasheet

Part Number ACT4515
Manufacturers Active-Semi
Logo Active-Semi
Description Wide-Input Sensorless CC/CV Step-Down DC/DC Converter
Datasheet ACT4515 DatasheetACT4515 Datasheet (PDF)

ACT4515 Rev 6, 14-Nov-12 Wide-Input Sensorless CC/CV Step-Down DC/DC Converter 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 Ch.

  ACT4515   ACT4515






Part Number ACT4515
Manufacturers Qorvo
Logo Qorvo
Description Step-Down DC/DC Converter
Datasheet ACT4515 DatasheetACT4515 Datasheet (PDF)

FEATURES • 40V Input Voltage Surge • 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%.

  ACT4515   ACT4515







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

ACT4515 Rev 6, 14-Nov-12 Wide-Input Sensorless CC/CV Step-Down DC/DC Converter 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 Feature Set − Integrated Soft Start − Thermal Shutdown − Secondary Cycle-by-Cycle Current Limit − Protection Against Shorted ISET Pin • SOP-8 Package APPLICATIONS • Car Charger • Rechargeable Portable Devices • General-Purpose CC/CV Supply GENERAL DESCRIPTION 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 control. Active CC eliminates the expensive, high accuracy current sense resistor, making it ideal for battery charging applications and highbrightness LED drive for architectural lighting. The A.


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