40V/3.0A CV/CC Buck Converter
ACT4529
Rev 1, October 13th, 2015
40V/3.0A CV/CC Buck Converter Featuring QC2.0 ,USB Auto-Detect and USB-PD
FEATURES
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Description
ACT4529
Rev 1, October 13th, 2015
40V/3.0A CV/CC Buck Converter Featuring QC2.0 ,USB Auto-Detect and USB-PD
FEATURES
Qualcomm® Quick Charge™ 2.0 Certified 40V Input Voltage Surge 6V-36V Operational Input Voltage 5.1V/9.1V/12.1V Output with +/-1% Accuracy Up to 3.0A Output current Constant Current Regulation Limit QC2.0 Decoding + USB Auto-Detect + USB-PD
Type-C Support
Support Apple 2.4A, Samsung and BC1.2
Devices
Hiccup Mode Protection at Output Short >90% Efficiency at Full Load 0.5mA Low Standby Input Current 5.7V/10.1V/13.5V Output Over-voltage
Protection for 5.1V/9.1V/12.1V Outputs
Cord Voltage Compensation Meet EN55022 Class B Radiated EMI Standard 8kV ESD HBM Protection on DP and DM SOP-8EP Package
APPLICATIONS
Car Charger Cigarette Lighter Adaptor (CLA) Rechargeable Portable Device CV/CC regulation DC/DC converter
GENERAL DESCRIPTION
ACT4529 is a wide input voltage, high efficiency step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode. This device has QC2.0 built in to provide 5.1V/9.1V/12.1V outputs as requested by attached portable devices. Besides building in QC2.0 decoding, it also supports Apple, Samsung and BC1.2 devices to charge at full current rate. ACT4529 has an interface for USB-PD control via a tri-state digital pin. Vout is 5.1V if this pin is floating, Vout is 9.1V when this pin voltage is less than 0.8V and Vout is 12.1V while this pin voltage ...
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