STWBC

STWBC Digital controller for wireless battery charger (WBC) transmitters Qi 1.1.2 A11 certified, PMA compatible Datasheet - production data VFQFPN32 Features  Digital controller for wireless battery charger transmitter  Multiple Qi certified and PMA standard compatible  Support for up to 5 W applications – Mobile – Wearable, sports gear, medical – Remote controllers  Native support to half-bridge and full bridge topologies  5 V supply voltage  2 firmware options – Turnkey solution for quick design – APIs available for application customization(a)  Peripherals available via APIs(a) – ADC with 10 bit precision and 1 M input impedance – UART – I2C master fast/slow speed rate – GPIOs  Memory – Flash and E2PROM with read-while-write (RWW) and error correction code (ECC) – Program memory: 32 KBytes Flash; data retention 15 years at 85 °C after 10 kcycles at 25 °C – Data memory: 1 KByte true data E2PROM; data retention:15 years at 85 °C after 100 kcycles at 85 °C – RAM: 6 KBytes  Reference design features – 2 layers PCBs – Active object detection – Graphical user interface for application monitoring – Evaluation boards  Operating temperature: -40 °C up to 105 °C  Package: VFQFPN32 Applications  Certified Qi A11 – Evaluation board: STEVAL-ISB027V1 – Power rate: 5W – Input: 5V  Qi A13(a) – Power rate: 5 W – Input: 5 - 16 V, 12 V  Wearable(a) – Power rate: 2 W – Input: 5 V  PMA(a) – power rate: 5 W – input: 5 V a. Contact local sale representative for further detail...