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STMicroelectronics STWLC68 | Demoboard STEVAL-ISB68
Qi-compliant inductive wireless power receiver for 5W applications
Overview
| Topology | Wireless Power Transfer |
Description
The STWLC68 is an integrated Wireless Power Receiver suitable for portable applications and capable of managing up to 5 W of output power. The chip has been designed to support Qi 1.2.4 specifications for inductive communication protocol and Base Power Profile (BPP). The STWLC68 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. Through the I2C interface the user can access and modify different configuration parameters, tailoring the operation of the device to the needs of custom applications. The configuration parameters can be saved in the embedded OTP memory and automatically retrieved at power-up, allowing the STWLC68 to operate as standalone device. The STWLC68 is housed in a Chip-Scale Package to fit real-estate solutions in wearable devices.
Features
- Up to 5 W output power
- Qi 1.2.4 inductive wireless standard communication protocol compliant
- Integrated 27 V synchronous rectifier with 98% (typ.) efficiency
- Low drop-out linear regulator with output current and input voltage control loops
- 3.6 V to 20 V programmable output voltage with 25 mV resolution
- Up to 80% overall system efficiency
- 32-bit, 64 MHz ARM Cortex microcontroller core
- OTP memory for configuration data
- 8-channels, 10-bit A/D Converter
- 6 configurable GPIOs
- Accurate voltage/current measurement for Foreign Object Detection (FOD)
- Output Over-Voltage clamping protection
- 400 kHz I2C interface
- On-chip thermal management and protections (Over-voltage, Over-current)
- Enhanced power dissipation capability Chip-Scale Package (CSP)
Typical applications
- Power banks
- Wearable devices.
- Medical and healthcare equipment
- Smartphones and PDAs, GPS navigators
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ.(nm) | Emitting Color | λPeak typ.(nm) | IV typ.(mcd) | VF typ.(V) | Chip Technology | 2θ50% typ.(°) | Interface Type | Type | Gender | Pins | Mount | PCB Thickness(mm) | Working Voltage(V (AC)) | Packaging | Compliance | Size | L(µH) | IR(A) | RDC max.(mΩ) | fres(MHz) | Q | P(W) | SamplesAvailability & Sample | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | SPECWL-SMCD SMT Mono-color Chip LED Diffused, 573 nm, Bright Green | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCD SMT Mono-color Chip LED Diffused | Dominant Wavelength [typ.]573 nm | Emitting ColorBright Green | Peak Wavelength [typ.]575 nm | Luminous Intensity [typ.]60 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | – | – | – | – | PackagingTape and Reel | – | Size0603 | – | – | – | – | – | – | –Check availability | |||
| SPECWL-SMCD SMT Mono-color Chip LED Diffused, 589 nm, Yellow | Availability – | Downloads26 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCD SMT Mono-color Chip LED Diffused | Dominant Wavelength [typ.]589 nm | Emitting ColorYellow | Peak Wavelength [typ.]591 nm | Luminous Intensity [typ.]100 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | – | MountSMT | – | – | PackagingTape and Reel | – | Size0603 | – | – | – | – | – | – | –Check availability | ||
| SPECWL-SMCD SMT Mono-color Chip LED Diffused, 624 nm, Red | Availability – | Downloads26 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCD SMT Mono-color Chip LED Diffused | Dominant Wavelength [typ.]624 nm | Emitting ColorRed | Peak Wavelength [typ.]632 nm | Luminous Intensity [typ.]90 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | – | MountSMT | – | – | PackagingTape and Reel | – | Size0603 | – | – | – | – | – | – | –Check availability | ||
 | SPECWE-WPCC Wireless Power Transfer Receiver Coil, –, – | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-WPCC Wireless Power Transfer Receiver Coil | – | – | – | – | – | – | – | – | – | – | Pins2 | MountTHT | – | – | – | Complianceworks with Qi Rx IC's | Size40 x 40 x 1.2 mm | Inductance8 µH | Rated Current5 A | DC Resistance80 mΩ | Self Resonant Frequency16 MHz | Q-Factor30 | Power Capability [1]80 W | –Check availability | |||
 | SPECWR-USB Mini/Micro Connectors, –, – | Simulation– | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-USB Mini/Micro Connectors | – | – | – | – | – | – | – | Interface TypeType AB | TypeHorizontal | GenderReceptacle | Pins5 | MountSMT | PCB Thickness1.2 mm | Working Voltage30 V (AC) | PackagingTape and Reel | – | – | – | Rated Current1.8 A | – | – | – | – | –Check availability |
Availability Forecast
WE item number Packaging unitsLead time
––– weeks
| Expected Availability | Opening inventory | Quantity |
|---|---|---|
| Current Availability | – | – |
There is no forecast for this quantity request.
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