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The RT3181A is a highly integrated and scalable solution for wireless power transmitter applications. The RT3181A is designed to support the major wireless power standards - WPC (Qi). The RT3181A can be configured to various type of transmitter in WPC definition. The RT3181A supports fully integrated design for WPC LP A11 transmitter which could be powered from a 5V output of USB or AC adaptor in low power applications. The RT3181A is able to support WPC MP-A5 transmitter design with external power stage for medium power applications. The RT3181A can be paired with a smart AC adapter from selected suppliers to provide reduced system cost and optimal efficiency over the range of power usage.
High Integration with Internal H-Bridge Power Stage and Current Sense Amplifier, Optimized for LP-A11 Solution
High Power with External Power Stage, Optimized for MP-A5 Solution
No Current Transformer Required
Low Quiescent Current Plus► Selectable Ping Cycle in Custom Applications► Low Current Sleep Mode Options Including "Off" State with Wake Up I/O Pin
Programmable Thermal Protection
Support Foreign Object Detection
Notifications -► 1 Buzzer► 2 LEDs, Resistor Programmable
I2C Host Applications Interface (Option)
Internal Watchdog Timer
48-Lead WQFN Package
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