STWLC68

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Qi-compliant inductive wireless power receiver for 5W applications

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  • 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 low-loss 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 stand-alone device. The STWLC68 is housed in a Chip-Scale Package to fit real-estate solutions in wearable devices.

    Key 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)

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Part Number
Marketing Status
Package
Grade
ECCN (US)
Country of Origin
Temperature (°C) Output Power (W) (typ)
Budgetary Price (US$)*/Qty
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STWLC68JRH
Active
WLCSP72 3.265X3.674X0.6 0.41P 0 Industrial EAR99 SOUTH KOREA -40 85 5 2.8 / 1k Check Availability

Distributor availability ofSTWLC68JRH

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 24 1 Order Now

Distributor reported inventory date: 2020-05-26

Distributor Name

DIGIKEY

Stock

24

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-05-26

STWLC68JRH

Marketing Status

Active

Package

WLCSP72 3.265X3.674X0.6 0.41P 0

Budgetary Price (US$)*/Qty

2.8 / 1k

Distributor availability ofSTWLC68JRH

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 24 1 Order Now

Distributor reported inventory date: 2020-05-26

Distributor Name

DIGIKEY

Stock

24

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-05-26

Grade

Industrial

ECCN (US)

EAR99

Budgetary Price (US$)* / Qty

2.8 / 1k

Country of Origin

SOUTH KOREA

Operating Temperature (°C)

(min)

-40

(max)

85

Output Power (W) (typ)

5

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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Evaluation Tools

    • Part Number

      Qi-based wireless power receiver for Baseline Power Profile (BPP) applications up to 5 W using STWLC68

      Qi-based wireless power receiver reference design for wearable applications up to 2.5 W using STWLC68

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS13131
      Qi-compliant inductive wireless power receiver for 5W applications
      2.0
      1.44 MB
      PDF
      DB4020
      Qi-compliant inductive wireless power receiver for 5W applications
      2.0
      470.46 KB
      PDF
      DS13131

      Qi-compliant inductive wireless power receiver for 5W applications

      DB4020

      Qi-compliant inductive wireless power receiver for 5W applications

    • Description Version Size Action
      AN5404
      STWLC68JRH - FOD calibration
      1.1
      408.47 KB
      PDF
      AN5479
      STWLC68JRH - Tuning guide
      1.0
      298.52 KB
      PDF
      AN5404

      STWLC68JRH - FOD calibration

      AN5479

      STWLC68JRH - Tuning guide

    • Description Version Size Action
      UM2693
      Getting started with STEVAL-ISB68WA wireless power receiver evaluation kit for wearable applications
      1.0
      6.7 MB
      PDF
      UM2681
      Getting started with the wireless power evaluation board for Qi inductive receiver with STWLC68JRH
      1.1
      3.52 MB
      PDF
      UM2693

      Getting started with STEVAL-ISB68WA wireless power receiver evaluation kit for wearable applications

      UM2681

      Getting started with the wireless power evaluation board for Qi inductive receiver with STWLC68JRH

    • Description Version Size Action
      AN5404
      STWLC68JRH - FOD calibration
      1.1
      408.47 KB
      PDF
      AN5479
      STWLC68JRH - Tuning guide
      1.0
      298.52 KB
      PDF
      AN5404

      STWLC68JRH - FOD calibration

      AN5479

      STWLC68JRH - Tuning guide

Publications and Collaterals

    • Description Version Size Action
      Power Management Guide 06.2019
      4.89 MB
      PDF
      Products and solutions for Wearable devices 1.0
      2 MB
      PDF

      Power Management Guide

      Products and solutions for Wearable devices

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STWLC68JRH
Active
WLCSP72 3.265X3.674X0.6 0.41P 0 Industrial N/A

STWLC68JRH

Package:

WLCSP72 3.265X3.674X0.6 0.41P 0

Material Declaration**:

Marketing Status

Active

Package

WLCSP72 3.265X3.674X0.6 0.41P 0

Grade

Industrial

RoHS Compliance Grade

N/A

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.