STWLC03 Dual mode Qi/PMA wireless power receiver Datasheet - production data Flip Chip 77 bumps (3.12x4.73 mm) Applications Cellular phones Power banks Navigation systems Tablets Medical and healthcare instrumentation Description Features The STWLC03 is an integrated wireless power 1 W to 12 W output power receiver solution suitable for portable Qi 1.1 and PMA wireless standard applications. The STWLC03 is able to operate communication protocols with Qi 1.1 or PMA communication protocol. Integrated high efficiency synchronous Thanks to the integrated low impedance rectifier synchronous rectifier and DC-DC step-down 800 kHz programmable step-down converter converter, the STWLC03 achieves high with input current and input voltage efficiency, low power dissipation and output regulation loops power beyond 5 W. Digital control and precise 2 Step-down converter efficiency up to 90% analog control loops ensure stable operation. I C Simplified Li-Ion/Polymer charger function interface allows many parameters to be 32-bit, 16 MHz embedded microcontroller customized in the device and this configuration with 16 kB ROM and 2 kB RAM memory can be stored in the embedded NVM. 2 kB NVM for customization The STWLC03 can deliver the output power in Integrated driver for external supply switch two modes: as a power supply with configured Precise voltage and current measurements output voltage or as a simple CC/CV battery for received power calculation charger with configurable charging current. 2 I C interface The STWLC03 can detect an external (wired) Configurable GPIO output power supply connection and drive an external Rx coil NTC protection power switch. Thermal protection Low power dissipative rectifier overvoltage clamp Table 1: Device summary Order code Description Package Packing STWLC03JR 12 W output Flip Chip 77 bumps (3.12x4.73 mm) Tape and reel March 2017 DocID029451 Rev 2 1/56 www.st.com This is information on a product in full production. Contents STWLC03 Contents 1 Introduction ..................................................................................... 6 2 Pin configuration ............................................................................. 7 3 Maximum ratings ........................................................................... 10 4 Electrical characteristics .............................................................. 12 5 Device description ......................................................................... 17 5.1 Using the STWLC03 as a power supply .......................................... 17 5.2 Using the STWLC03 as a battery charger ....................................... 17 5.3 Wireless standard auto-detection .................................................... 18 5.4 Qi operation and flow chart ............................................................. 19 5.4.1 Received power calibration (FOD feature) ....................................... 21 5.5 PMA operation ................................................................................ 21 5.6 External power supply ..................................................................... 22 5.7 The device interface ........................................................................ 24 2 6 I C register description ................................................................. 25 6.1 ADC measured values .................................................................... 31 6.2 Service registers ............................................................................. 33 7 Non-volatile memory ..................................................................... 35 7.1 NVM sector maps ............................................................................ 35 8 Application information ................................................................ 45 8.1 Application schematic and recommended external components..... 45 8.2 External passive component selection ............................................ 49 8.2.1 Input resonant circuit component selection (L1, C1, C2) ................. 49 8.2.2 Voltage clamp resistor selection (RCL1, RCL2) ............................... 49 8.2.3 Load modulation capacitors selection (CM1, CM2) ......................... 49 8.2.4 Feedback resistor divider components selection (RFB1, RFB2) ..... 49 8.2.5 Rx NTC circuit component selection (RNTC, R1) ............................ 49 8.2.6 Soft-start capacitor selection (C10) .................................................. 50 8.2.7 External supply transistor selection .................................................. 50 8.3 Reference PCB layout ..................................................................... 51 9 Package information ..................................................................... 53 9.1 Flip Chip 77 bumps (3.12x4.73 mm) package information .............. 53 10 Revision history ............................................................................ 55 2/56 DocID029451 Rev 2