FEATURES
· VIN Input Voltage Range: 4.2V-30V
· PVIN Input Voltage Range: 1V~26V
· Up to 30W Power Transfer
· Integrated Full-Bridge Power Stage with 13-mΩ Rdson of Power MOSFETs
· Integrated High Efficiency 5V-1A Step-down DC/DC Converter
· Build-in 3.3V-200mA LDO
· Integrated Lossless Input Current Sensor with ±2% accuracy for FOD and current Demodulation
· Integrated voltage and current demodulation
· Integrated Q factor detection
· 3.3V and 5V PWM Signal Logic Compatible
· Input Under-Voltage Lockout
· Over Current Protection
· Over Temperature Protection
· Available in QFN-21L 4mm*4mm Package
DESCRIPTION
This device integrates a 4-MOSFETs full bridge,gate drivers, a 5V step-down DC/DC converter, a 3.3V LDO, communication demodulator, Q-factor detection and input current sensor for both system efficiency and easy-to-use.
The proprietary gate driving scheme optimizes the performance of EMI reduction to save the system cost and design. The proprietary lossless current sensing circuitry with ±2% accuracy monitors input current of full bridge to support Foreign Object Detection FOD and current demodulation. The build-in 5V step-down DC/DC converter and 3.3V low dropout regulator LDO can provide power supplies to transmitter controller and external circuitries.
The SCT63340 features input under-voltage lock-out UVLO protection, over current protection, short circuit protection, and over temperature protection for robust design.
The SCT63340 is available in a compact QFN 4mm*4mmpackage.
APPLICATIONS
· WPC EPP Chargers of 10W to 30W Systems for Mobiles and tablets
· General Wireless Power Transmitters for Consumer, Industrial and Medical Equipment
· Proprietary Wireless Chargers and Transmitter