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STMicroelectronics STWLC38 | Demoboard STWLC38 in Rx and RTx
Qi-compliant dual mode wireless power receiver for up to 15W applications
Overview
| Topology | Wireless Power Transfer |
| Input voltage | 5-12 V |
| Output 1 | 12 V / 1.25 A |
| IC revision | 1 |
Description
The STWLC38 is an integrated Wireless Power Receiver suitable for wearable/hearable and smart phone applications and can supply up to 15 W of outputpower. The chip has been designed to support Qi 1.3 specifications for inductive communication protocol, 5W Baseline Power Profile and 15W Extended PowerProfile. STWLC38 shows excellent efficiency performance thanks to the integrated low-losssynchronous 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.
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
- 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)
Typical applications
- Wearable/Hearables TWS
- Medical and healthcare equipment
- Smartphones
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | C | Tol. C | VR (V (DC)) | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | Compliance | Size | L (µH) | IR (A) | RDC max. (mΩ) | fres (MHz) | Q (%) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012205044 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | 1 nF | ±10% | 25 | -55 °C up to +125 °C | 3.5 | 10 GΩ | X7R Class II | 1 | 0.5 | 0.5 | 0.25 | 7" Tape & Reel | – | 0402 | – | – | – | – | – | ||
| 885012206084 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 1.5 nF | ±10% | 50 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | 0603 | – | – | – | – | – | ||
| 885012206086 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 3.3 nF | ±10% | 50 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | 0603 | – | – | – | – | – | ||
| 885012205050 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | 10 nF | ±10% | 25 | -55 °C up to +125 °C | 3.5 | 10 GΩ | X7R Class II | 1 | 0.5 | 0.5 | 0.25 | 7" Tape & Reel | – | 0402 | – | – | – | – | – | ||
| 885012206089 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 10 nF | ±10% | 50 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | 0603 | – | – | – | – | – | ||
| 885012205052 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | 22 nF | ±10% | 25 | -55 °C up to +125 °C | 3.5 | 10 GΩ | X7R Class II | 1 | 0.5 | 0.5 | 0.25 | 7" Tape & Reel | – | 0402 | – | – | – | – | – | ||
| 885012206091 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 22 nF | ±10% | 50 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | 0603 | – | – | – | – | – | ||
| 885012205054 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | 47 nF | ±10% | 25 | -55 °C up to +125 °C | 3.5 | 10 GΩ | X7R Class II | 1 | 0.5 | 0.5 | 0.25 | 7" Tape & Reel | – | 0402 | – | – | – | – | – | ||
| 885012206093 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 47 nF | ±10% | 50 | -55 °C up to +125 °C | 3 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | 0603 | – | – | – | – | – | ||
| 885012206095 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 100 nF | ±10% | 50 | -55 °C up to +125 °C | 3 | 5 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | 0603 | – | – | – | – | – | ||
| 885012205085R | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | 100 nF | ±10% | 25 | -55 °C up to +125 °C | 10 | 5 GΩ | X7R Class II | 1 | 0.5 | 0.5 | 0.25 | 13" Tape & Reel | – | 0402 | – | – | – | – | – | ||
| 885012105006 | SPEC | 5 files | WCAP-CSGP MLCCs 6.3 V(DC) | 1 µF | ±20% | 6.3 | -55 °C up to +85 °C | 15 | 0.1 GΩ | X5R Class II | 1 | 0.5 | 0.5 | 0.25 | 7" Tape & Reel | – | 0402 | – | – | – | – | – | ||
| 885012206052 | SPEC | 8 files | WCAP-CSGP MLCCs 16 V(DC) | 1 µF | ±10% | 16 | -55 °C up to +125 °C | 10 | 0.1 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | 0603 | – | – | – | – | – | ||
| 885012105008 | SPEC | 5 files | WCAP-CSGP MLCCs 6.3 V(DC) | 4.7 µF | ±20% | 6.3 | -55 °C up to +85 °C | 10 | 0.02 GΩ | X5R Class II | 1 | 0.5 | 0.5 | 0.25 | 7" Tape & Reel | – | 0402 | – | – | – | – | – | ||
 | 760308101219 | SPEC | 7 files | WE-WPCC Wireless Power Transfer Receiver Coil | – | – | – | -20 °C up to +105 °C | – | – | – | 15 | 15 | 0.6 | – | – | works with Qi Rx IC's | Ø 15 x 0.6 mm | 11.8 | 0.7 | 750 | 22 | 13 |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | C | Tol. C | VR (V (DC)) | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | Compliance | Size | L (µH) | IR (A) | RDC max. (mΩ) | fres (MHz) | Q (%) | Samples |
|---|