STWLC38

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Qi-compliant inductive wireless power receiver for up to 15W applications

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Product overview

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 output power. The chip has been designed to support Qi 1.3 specifications for inductive communication protocol, 5W Baseline Power Profile and 15W Extended Power Profile.STWLC38 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 Resistive RAM (RRAM) and automatically retrieved at power-up.STWLC38 is also capable of operating in Tx mode to transmit power to charge other devices. The device can provide power up to 5W Output power in this mode. The STWLC38 is housed in a Chip-Scale Package to fit real-estate sensitive solutions in wearable devices.

  • All 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)

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STMicroelectronics - STWLC38

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STWLC38JRM
Active
WLCSP40 2.126X3.327X0.546 0.4P 0 Industrial N/A

STWLC38JRM

Package:

WLCSP40 2.126X3.327X0.546 0.4P 0

Material Declaration**:

Marketing Status

Active

Package

WLCSP40 2.126X3.327X0.546 0.4P 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.

Sample & Buy

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ECCN (US)
ECCN (EU)
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Budgetary Price (US$)*/Qty
Unit Price (US$)
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Output Power (W) (typ)
min
max
STWLC38JRM Available at distributors

Distributor availability of STWLC38JRM

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Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel WLCSP40 2.126X3.327X0.546 0.4P 0 -40 85 Industrial

2.175

SOUTH KOREA

15

STWLC38JRM Active

Package:
WLCSP40 2.126X3.327X0.546 0.4P 0
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STWLC38JRM

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

Grade:

Industrial

Country of Origin:

SOUTH KOREA

Output Power (W) (typ):

15

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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