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

The SCT63340 is a highly integrated Power Management IC allows achieving high performance, high efficiency and cost effectiveness of wireless power transmitter system compliant with WPC specification to support up to 30W power transfer, working with a wireless application specific controller ASIC or a general MCU based transmitter controller.

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

Parameter list

Technical information