STWLC98

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Qi-compliant inductive wireless charger power receiver for 70W applications

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Product overview

Description

The STWLC98 is a highly integrated wireless power receiver suitable for applications delivering an output power up to 70W.The chip has been designed to support Qi 1.3 specifications for inductive communication protocol with extended power profile (EPP) and proprietary ST Super Charge(STSC) protocol for fast charging.

With integrated low-loss synchronous rectifier and low drop-out linear regulator, STWLC98 achieves high efficiency with low power dissipation.

Through I2C interface the user can access and modify the configuration parameters for customized applications. The final configuration parameters are stored in embedded Few Times Programmable(FTP) non-volatile memory and automatically retrieved at power-up.

The device can also operate as a wireless transmitter, capable of transmitting up to 15W of power (depending on the coil used)

Chip-Scale Package and low bill of materials (BOM) count make it very suitable for compact applications.

  • All features

    • Up to 70W output power
    • Up to 15W output power in Tx mode
    • Qi 1.3 compliant
    • Integrated 27 V synchronous rectifier with ≥ 98% efficiency
    • ARC(Adaptive Rectifier Configuration) mode for enhanced spatial freedom
    • Low drop-out linear regulator with output current and input voltage loops
    • Programmable output voltage up to 20V
    • 32bit, 64MHz ARM®Cortex® M3 core with 16KB FTP, 16KB RAM,80KB ROM
    • 10-bit A/D converter
    • 6 configurable GPIOs
    • I2C Slave, Master interface
    • 8-levels ASK modulator, enhanced FSK demodulator
    • Foreign Object Detection (FOD)
    • Coil Q-factor measurement for FOD in Tx mode
    • Over voltage, over current and thermal protection
    • Flip chip 90 bumps (4.3 mm x 3.9 mm)

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STMicroelectronics - STWLC98

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STWLC98JR
Active
WLCSP 4.289X3.869X0.47 90 0.4PIT Industrial N/A

STWLC98JR

Package:

WLCSP 4.289X3.869X0.47 90 0.4PIT

Material Declaration**:

PDF XML

Marketing Status

Active

Package

WLCSP 4.289X3.869X0.47 90 0.4PIT

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.

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STWLC98JR
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STWLC98JR

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70

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