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.