Active-Semi ACT4513
ACT4513 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. The ACT4513 achieves higher efficiency than traditional constant current switching regulators by eliminating its associated power loss. ACT4513 provides up to 2A output current at 210kHz switching frequency.| Part No. | ACT4513 |
|---|---|
| Datasheet | ACT4513 Download |
| Manufacturer |  Active-Semi |
| Description | Wide-Input Sensorless CC/CV Step-Down DC/DC Converter |
| Buy | Stock & Price |
FEATURES
● Up to 40V Input Voltage● Up to 2A output current
● Output Voltage up to 12V
● Patent Pending Active CC Sensorless Constant Current Control − Integrated Current Control Improves Efficiency, Lowers Cost, and Reduces Component Count
● Resistor Programmable − Current Limit from 750mA to 2A − 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-8EP Package
APPLICATIONS
● Car Charger/ Adaptor● Rechargeable Portable Devices
● General-Purpose CC/CV Supply
GENERAL DESCRIPTION
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 adaptors with accurate current limit.
