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
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Package
Grade
ECCN (US)
Budgetary Price (US$)*
Quantity
Country of Origin
Operating Temperature (°C) (max)
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STWLC68JRH
Preview
WLCSP72 3.265X3.674X0.6 0.41P 0 Industrial EAR99 - - - 85
MORE INFO

Operating Temperature (°C) (min):

-40

Output Power (W) (typ):

5

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STWLC68JRH

Marketing Status

Preview

Package

WLCSP72 3.265X3.674X0.6 0.41P 0

Unit Price (US$)

*

Grade

Industrial

ECCN (US)

EAR99

Unit Price (US$)

-

Quantity

-

Country of Origin

-

(max)

85

Operating Temperature (°C)

(min)

-40

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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00 Files selected for download

Technical Documentation

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

      Qi-compliant inductive wireless power receiver for 5W applications

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
Preview
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

Preview

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.