STEVAL-ISB042V1 STMicroelectronics

STEVAL-ISB042V1 Dual mode wireless power evaluation board for Qi and Airfuel inductive receiver and Qi-based transmitter with STWLC33 Data brief Description The STEVAL-ISB042V1 is a 15-watt Qi and 5-watt Airfuel inductive (former PMA) wireless power receiver evaluation board based on the STWLC33 wireless power receiver solution for the WPC/Airfuel mobile device with dual mode coil. The board lets you evaluate the STWLC33 capabilities as a Qi/Airfuel inductive receiver as well as its ability to power another Qi receiver. The solution is certified in accordance with the extended power profile Qi v1.2 and Airfuel SR1 standard. The STWLC33 IC is powered by a dual mode Rx coil attached to a 1.5 mm thick plastic fixture. The STWLC firmware offers users the flexibility to modify parameters and settings to ensure proper integration of the STWLC33 device with the final Features application. STWLC33 evaluation board with Wrth Elektronik dual mode coil (760308102207) The layout is based on a cost-effective 4-layer PCB. Qi 1.2 compliant, supporting extended power profile: up to 15 W/10 V maximum output power Backward compatible with Qi baseline power profile: up to 5 W/5 V maximum output power PMA-SR1 (AirFuel inductive) compliant: 5 W/5.6 V maximum output power Transmitter function based on Qi protocol to charge wearable devices using the same Rx coil (up to 3 W power) Total system efficiency up to 80% Configurable GPIOs for status indication IC interface for communication with the host system Foreign object detection (FOD) Complete kit (IC, firmware) RoHS compliant October 2017 DocID030965 Rev 2 1/5 www.st.com For further information contact your local STMicroelectronics sales office Schematic diagrams STEVAL-ISB042V1 1 Schematic diagrams Figure 1: STEVAL-ISB042V1 circuit schematic (1 of 2) 2/5 DocID030965 Rev 2 J2 J3 J5 VOUT VRECT VIOFLASH C14 J6 PGND PGND PGND P 1 2 D3 Q1 CS1 CS2 CS3 CS4 D Zener D4 100nF 100nF 100nF 100nF RFLT3 PGND 12V 620R V18 1 2 VIOFLASH CBOOT2 D Zener CBOOT1 CFLT3 12V RFLT2 P3 6.8nF 68k V18 15nF 15nF CCL2 CCL1 100nF CFLT2 Rx 100nF CM2 PGND CPAR CM1 PGND J7 22nF VS2 1 2 47nF 2.2nF 47nF RFLT1 3 4 10k 5 6 J8 RNTC 7 8 SCL 3 SDA Header 4X2 2 PGND 1 PGND SCL A3 G4 SCL VS1 Header 3 PGND SDA B3 H4 VS2 CFLT1 SDA VS2 1.5nF RCL INT C3 IO1 C2 INT-N HVOD VOUT STWLC33 15R A2 VBUS PGND DM B2 VRECT DP VVVVVVVRRRRRRREEEEEEECCCCCCCTTTTTTT P9 GND VRECT S SEHLI D C1 C2 C2a C2b 10uF 10uF 10uF 100nF GP0 A4 J1 GPIO 0 GP1 B4 PGND GPIO 1 PGND GP2 C4 GPIO 2 R7 J4 GP3 A5 GPIO 3 PGND VIOFLASH V5V 12 RESET/EN R6 R1 R2 100k GP4 C5 D1 VOUT 11 GPIO 4 OOOOOOUUUUUUTTTTTT R3 R8 10 1k5 1k5 C3 C4 9 INT 100k 4k7 4k7 PGND 10uF 10uF 8 R4 SDA RESET/EN B5 V18 7 /EN SCL 1uF 6 51k D1 D6 GP4 C7 V5V F1 F6 C6 PGND 5 V5V V18 GP3 4 GP2 100nF 3 C6a GP1 T1 PGND 2 GP0 1 C7a 100nF GP2 1 Header 12 1uF PGND PGND PGND PGND PGND PGND G6 BST2 BST2 B6 CMB C1 GND I1 A 6 PPPPPPGGGGGGNNNNNNDDDDDD CM 2 C6 AGND H5 AAACCC222 1 2 H1 AAACCC111 A 1 CM 1 B1 CMA G1 BST1 BST1 1 2 INT 2 1 1 2 SCL SDA 1 INT 2 1 2 1uF / 6.3V 2 3 2 1 FDV303N