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MAX20047AFPA/V+ bảng dữ liệu(PDF) 1 Page - Maxim Integrated Products |
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MAX20047AFPA/V+ bảng dữ liệu(HTML) 1 Page - Maxim Integrated Products |
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1 / 29 page  General Description The MAX20047 is an automotive-grade, low-cost, small- footprint dual-port charger IC designed for automotive charging applications. It combines a fully synchronous 6A step-down buck converter with integrated high-side and low- side FETs capable of operating with input voltages from 3.5V to 36V and delivering 5.2V output voltage. The IC features integrated iPod®/iPhone® 1.0A and iPad® 2.1A dedicated charging modes. The IC delivers up to 3A of charging current with 93% efficiency per port through integrated switches with programmable current limit and thermal foldback control. The buck converter switching frequency is programmable from 0.4MHz to 2.2MHz. Short-to-ground protection and overcurrent protection are also provided on the protected HVBUS outputs to protect the internal BUS power rail from an overcurrent fault. The MAX20047 offers short-to-battery up to +18V and can also be ordered with spread-spectrum operation to reduce EMI. Applications ● USB Dedicated Charging Ports (DCP) ● Automotive Cigarette Lighter Adapters ● Power Supply for Linear Chargers Benefits and Features ● Operating VIN Range of 3.5V to 36V ● 40V Load-Dump Protection ● Synchronous DC-DC Converter with Integrated FETs ● 93% Charge Efficiency at 3A Charging ● 0.4MHz to 2.2MHz Programmable Switching Frequency by External Pin Settings ● Spread-Spectrum Operation ● Fixed 8ms Internal Soft-Start ● 5.20V Output ● 99% Duty-Cycle Operation with Low Dropout ● ±2% Output-Voltage Accuracy ● Input System Overvoltage and Short-Circuit Protection ● Accurate SRC_DMOS Current Limiting with Minimal Voltage Drop • Low RON 15mΩ Dual USB Power Switches • Adjustable SRC_DMOS Current Limit by External Pin Settings • Integrated Current Sensing ● Thermal Regulation and Thermal Shutdown ● Dual Autonomous Battery-Charging Ports with Portable Device Detection • Integrated Apple® 2.4A, 2.1A, 1.0A Detection • Integrated Samsung® Detection • Integrated DCP Detection ● Robust for the Automotive Environment • Short-to-Battery and Short-to-Ground Protection on Protected SRC_DMOS Output • Short-to-Battery and Short-to-PV Protection on Protected HVDP1, HVDM1, HVDP2, and HVDM2 Inputs • Tested to ISO 10605 and IEC 61000-4-2 ESD Standards • 20-Pin (5.0mm x 3.5mm) FC2-QFN Package • -40°C to +125°C Operating Temperature Range • AEC-Q100 Qualified Ordering Information appears at end of data sheet. iPod, iPhone, iPad, and Apple are registered trademarks of Apple Inc. 19-100165; Rev 0; 9/17 Samsung is a registered trademark of Samsung Electronics Co., Ltd. MAX20047 Dual 3A USB DCP Charger |
Số phần tương tự - MAX20047AFPA/V+ |
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Mô tả tương tự - MAX20047AFPA/V+ |
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