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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Management - Specialized

Infineon Technologies WLC151568LDXSTXUMA1

Name: WLC151568LDXSTXUMA1
Brand: Infineon Technologies
SKU: WLC151568LDXSTXUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: WLC151568LDXSTXUMA1

Manufacturer:: Infineon Technologies

Category:: Power Management - Specialized

Package:: 68-VFQFN Exposed Pad

Datasheet:: WLC151568LDXSTXUMA1.pdf

Description:: TYPE-C - EMERGING APP.

Quantity:: RFQ Add To RFQ list

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Product details

Overview

WLC151568LDXSTXUMA1 from Infineon is a 15-W automotive-grade wireless power transmitter IC compliant with Qi v1.3.x (EPP/BPP), integrating a 32-bit Arm® Cortex®-M0 MCU (48 MHz, 128 KB Flash, 16 KB RAM), buck-boost controller, dual gate drivers for inverter and buck-boost stages, Q-factor/resonance-based FOD, and ASK/FSK transceiver blocks. It operates across 4.5 V–24 V input and supports free-positioning multi-coil pads in vehicle cabins.

For engineers reviewing the WLC151568LDXSTXUMA1 datasheet, WLC151568LDXSTXUMA1 pinout, WLC151568LDXSTXUMA1 application, or WLC151568LDXSTXUMA1 equivalent, key selection criteria include AEC-Q100 qualification, integrated Qi v1.3.x stack execution capability, programmable coil-enabling logic (COIL1_EN/COIL2_EN/COIL3_EN), LIN/I2C/SPI/UART interface support, and on-die thermal sensing for automotive ambient operation (–40°C to +105°C).

Technical Context

The WLC1515 implements a full Qi v1.3.x transmitter protocol stack in firmware running on its embedded Cortex-M0 core, enabling authentication, negotiation, calibration, and bidirectional in-band communication via ASK (Rx→Tx) and FSK (Tx→Rx). Its analog subsystem includes dedicated current-sense amplifiers (CSA), ASK demodulator inputs (ASK_P/ASK_N), and high-voltage LDOs for VBRG regulation up to 24 V.

It integrates two independent PWM-controlled gate driver banks: one for buck-boost converter (HG1_0/LG1_0/HG2_0/LG2_0) and another for inverter stage (HG1_1/LG1_1/HG2_1/LG2_1), supporting up to three TX coils with individual enable signals (COIL1_EN/COIL2_EN/COIL3_EN) and real-time Q-factor detection per coil.

Key Specifications

Parameter	Value and Actual Design Meaning
Wireless Standard	Qi v1.3.x EPP (15 W) and BPP (5 W) compliant transmitter; requires external license for Samsung FC or Apple 7.5 W extensions.
Input Voltage Range	4.5 V–24 V DC; supports direct connection to automotive battery (9 V–18 V nominal) with OVP/OCP protection.
MCU Core	Arm® Cortex®-M0 @ 48 MHz; 128 KB Flash, 16 KB SRAM, 32 KB ROM; executes full Qi stack and custom coil control logic.
FOD Method	Triple-mode foreign object detection: power loss delta, Q-factor shift, and resonance frequency deviation - all computed on-chip.
Communication Interfaces	I2C, UART, SPI, LIN; LIN enables direct integration into automotive body domain controllers without external level-shifting.
Operating Temperature	–40°C to +105°C ambient; junction rated to +125°C; qualified per AEC-Q100 Grade 2.
Package	68-pin QFN with wettable flanks; 10 mm × 10 mm × 0.85 mm; exposes thermal pad for PCB heat dissipation in automotive enclosures.

Pinout & Package

WLC151568LDXSTXUMA1 is housed in a 68-pin QFN package with wettable flanks, optimized for automotive thermal and mechanical reliability. The exposed thermal pad must be soldered to a large copper pour for junction temperature control under 15-W continuous operation.

Pin/Terminal	Circuit Role	Design Meaning
VIN	Main power input	Accepts 4.5 V–24 V; feeds internal LDOs and buck-boost controller; requires local 10 µF ceramic decoupling.
VBRG	Buck-boost output	Drives inverter half-bridge; regulated by integrated buck-boost controller; max 24 V, supports dynamic voltage scaling during power transfer.
HG1_0 / LG1_0 / HG2_0 / LG2_0	Buck-boost gate drivers	Drive external N-channel MOSFETs in synchronous buck-boost topology; slew-rate controlled for EMI reduction.
HG1_1 / LG1_1 / HG2_1 / LG2_1	Inverter gate drivers	Drive full-bridge inverter for TX coil excitation; support phase-shifted PWM for multi-coil sequencing.
COIL1_EN / COIL2_EN / COIL3_EN	Coil selection control	Digital outputs enabling individual TX coils; used in free-positioning algorithms to activate optimal coil subset based on Rx location.
ASK_P / ASK_N	ASK demodulator inputs	Differential analog inputs for decoding Rx-to-Tx communication; integrated amplifier and comparator eliminate external signal conditioning.
LIN_Tx / LIN_Rx / LIN_EN	LIN physical layer	Direct connection to automotive LIN bus; no external transceiver needed; supports diagnostics and host command interface at 19.2 kbps.

Key Features

Feature	Design Value
On-chip Qi v1.3.x stack execution	Firmware-executed protocol handling eliminates need for external host MCU; reduces BOM and system latency in authentication/negotiation phases.
Triple-mode FOD engine	Simultaneous real-time monitoring of power loss, Q-factor, and resonance frequency deviation - all computed using internal ADC and digital filters without host intervention.
Multi-coil free positioning support	Hardware-assisted coil enable logic (COILx_EN) and dedicated current sense paths per coil enable seamless handoff between single/dual/triple coil configurations.
Automotive-grade LIN interface	Integrated LIN PHY and protocol handler allow direct connection to vehicle body control module for status reporting, fault logging, and firmware updates over existing LIN wiring.
Programmable buck-boost PWM	Configurable switching frequency (100–500 kHz), pulse-skipping mode, and forced CCM ensure efficiency optimization across load and input voltage ranges.

Applications

Front-Seat Wireless Charging Pad

Rear-Seat Multi-Coil Console

Use Scenario: Integrated 15-W charging surface in driver/passenger armrest with metal shielding and thermal management.

IC Role / Device Role / Timing Role: Primary Qi v1.3.x transmitter controller managing coil selection, FOD, and power regulation in real time.

Use Value: Enables EPP-compliant 15-W charging while meeting AEC-Q100 thermal and EMC requirements in confined cabin space.

Use Scenario: Dual-zone rear console supporting simultaneous charging of two devices with independent coil sets.

IC Role / Device Role / Timing Role: Central transmitter IC coordinating three-coil array and LIN-based host coordination for zone arbitration.

Use Value: Eliminates need for dual discrete transmitters; reduces cost and PCB area while maintaining independent power delivery per zone.

Center Stack In-Cabin Charger

Aftermarket Dashboard Mount

Use Scenario: Embedded charging pad behind center display bezel with proximity wake-up and LED feedback.

IC Role / Device Role / Timing Role: Full-stack transmitter with integrated ASK/FSK transceiver and GPIO-driven LED control.

Use Value: Reduces external components: no separate demodulator, no external LIN transceiver, no discrete MCU for protocol handling.

Use Scenario: Compact plug-and-play charger mounted to dashboard vent with 12 V input and USB-LIN debug interface.

IC Role / Device Role / Timing Role: Standalone automotive wireless transmitter with pre-certified Qi stack and LIN diagnostics port.

Use Value: Accelerates time-to-market for Tier-2 suppliers via reference firmware and certified stack licensing path.

Equivalent & Alternatives

The following parts are listed as comparable options for similar wireless power transmitter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MP-A13 Reference Transmitter	Reference design board (not IC); uses WLC1515 as core IC; lacks integrated MCU firmware and LIN interface logic.	Used for evaluation only; not production-orderable as standalone component; requires full WLC1515 integration for volume deployment.	Select WLC151568LDXSTXUMA1 when requiring production-ready, AEC-Q100-qualified silicon with certified Qi stack and automotive interfaces.
STWBC2-HP	Standalone Qi 1.2.4 transmitter IC; no embedded MCU; relies on external host for stack execution; supports only single-coil topologies.	Targeted at cost-sensitive consumer accessories; lacks AEC-Q100 qualification, LIN, or multi-coil free-positioning capability.	Choose WLC151568LDXSTXUMA1 for automotive EPP applications requiring robust FOD, thermal safety, and LIN integration.

Compared with MP-A13 (reference board) and STWBC2-HP (consumer-focused IC), WLC151568LDXSTXUMA1 uniquely delivers production-grade automotive qualification, on-die Qi v1.3.x stack execution, LIN-native control, and hardware-accelerated triple-mode FOD - eliminating external processing and interface components required by alternatives.

Availability

WLC151568LDXSTXUMA1 is available at Aetrix Electronics and suitable for front-seat charging pads, rear-console multi-coil systems, center-stack in-cabin chargers, and aftermarket dashboard mounts requiring stable component supply across automotive production lifecycles.

Supply support for WLC151568LDXSTXUMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and security solutions, with global R&D and manufacturing infrastructure.

WLC1515 belongs to Infineon's Wireless Charging IC product line, designed specifically for AEC-Q100-compliant automotive transmitter applications requiring integrated Qi v1.3.x stack execution, multi-coil free positioning, and native LIN connectivity.

FAQ

Is WLC151568LDXSTXUMA1 qualified for automotive use?

Yes. WLC151568LDXSTXUMA1 is AEC-Q100 Grade 2 qualified, rated for –40°C to +105°C ambient operation with 125°C maximum junction temperature. It includes integrated thermal sensing, OVP, OCP, and FOD mechanisms validated for automotive cabin environments including vibration, thermal cycling, and EMI exposure.

Does it require an external MCU to run the Qi protocol?

No. The device integrates a 32-bit Arm® Cortex®-M0 processor with 128 KB Flash and executes the full Qi v1.3.x transmitter stack in firmware. External host MCU is optional - used only for higher-level system coordination (e.g., UI feedback or cloud telemetry), not protocol execution.

What coil configurations does it support?

WLC151568LDXSTXUMA1 natively supports single-, dual-, and triple-coil transmitter topologies via dedicated COIL1_EN/COIL2_EN/COIL3_EN outputs and per-coil current sense inputs. Free-positioning algorithms are implemented in firmware using real-time Q-factor and resonance tracking across active coils.

Can it interface directly with automotive LIN networks?

Yes. It features a fully integrated LIN 2.2A physical layer with LIN_Tx, LIN_Rx, and LIN_EN pins. No external transceiver is required. It supports standard LIN diagnostics, firmware updates, and status reporting at 19.2 kbps, enabling direct integration into vehicle body domain controllers.

WLC151568LDXSTXUMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 68-VFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Applications:: Wireless Power Transmitter

Current - Supply:: 85mA

Voltage - Supply:: 4.5V ~ 24V

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:: 68-QFN (10x10)

WLC151568LDXSTXUMA1 FAQ

1.How can I place an order for WLC151568LDXSTXUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for WLC151568LDXSTXUMA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for WLC151568LDXSTXUMA1 reliable?

The price and inventory of WLC151568LDXSTXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for WLC151568LDXSTXUMA1 is usually 5 days.

3.What payment methods are accepted for WLC151568LDXSTXUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for WLC151568LDXSTXUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for WLC151568LDXSTXUMA1?

WLC151568LDXSTXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your WLC151568LDXSTXUMA1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for WLC151568LDXSTXUMA1?

For technical support, including WLC151568LDXSTXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your WLC151568LDXSTXUMA1 requirements.

6.How does Aetrix verify that WLC151568LDXSTXUMA1 is sourced from the original manufacturer or authorized distributors?

All WLC151568LDXSTXUMA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that WLC151568LDXSTXUMA1 meets industry standards.

7.What is the process for return or replacement of WLC151568LDXSTXUMA1?

All WLC151568LDXSTXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with WLC151568LDXSTXUMA1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The WLC151568LDXSTXUMA1 part is unused and in its original packaging.

Return procedure for WLC151568LDXSTXUMA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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