Features
• Up to 15 W output power
• Up to 5W output power in Tx mode
• Qi 1.3 inductive wireless standard communication protocol compliant
• High efficiency (98% typical) synchronous rectifier operating up to 800 kHz
• Low drop-out linear regulator with output current limit and input voltage control
loop
• Adaptive Rectifier Configuration (ARC) Mode for enhanced spatial freedom
• 4 V to 12 V programmable output voltage
• Above 85% overall system efficiency
• 32-bit, 64 MHz ARM Cortex M0+ core with 32kB RRAM,16 kB SRAM,64kB
ROM
• 10-bit A/D Converter
• Configurable GPIOs
• Up to 1Mhz I2C Slave interface
• Multi-level ASK modulator, Enhanced FSK demodulator
• Output Over-Voltage clamping protection
• Accurate voltage/current measurement for Foreign Object Detection (FOD)
• On-chip thermal management and protections
• Flip chip 40 bumps (2.12mm x 3.32mm)
Application
• Smartphones
• Wearables, Hearables
• True Wireless Stereo (TWS)
• Asset tracking devices
• Medical and healthcare equipment
Description
The STWLC38 is a highly integrated wireless power receiver solution suitable for
applications up to 15W.
The chip has been designed to support Qi 1.3 specifications for inductive
communication protocol, Base Power Profile and Extended Power Profile (BPP, 5W
max, EPP 15W max).
The STWLC38 shows excellent efficiency performance thanks to the integrated lowloss
synchronous rectifier and the low drop-out linear regulator: both elements are
dynamically managed by the digital core to minimize the overall power dissipation
over a wide range of output load conditions.
STWLC38 features embedded RRAM (Resistive RAM) non-volatile memory to
enable I2C interface customization and support of proprietary communication and
charging protocols
Additional firmware patching also improves the application flexibility of STWLC38.