STWLC68 STMicroelectronics Integrated Circuit (Other) In Stock
STWLC68 is a Qi-compliant wireless power receiver IC designed for 5 W inductive charging applications, integrating a rectifier, LDO regulator, and control logic in a compact WLP package. It supports communication back to the transmitter over 100 kHz to 250 kHz load modulation and includes over-voltage and over-temperature protection. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 72
- Lifecycle
- ACTIVE
- Datasheet
- STWLC68 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STWLC68?
- Qi v1.2 compliant wireless power receiver supporting 5 W baseline power profiles for interoperability
- Integrated rectifier, LDO, and control logic reducing external component count to under 10 passives
- Back-channel communication over 100 kHz to 250 kHz load modulation for transmitter power negotiation
- Over-voltage, over-current, and over-temperature protection safeguarding the receiving device battery
What is STWLC68 used for?
STWLC68 is used in smartphones, wireless earbuds, and smartwatches that require Qi-standard 5 W wireless charging without a wired connector. Its integrated power path and protection circuitry reduce BOM complexity for wearable device designers who need a fully compliant wireless charging solution in a small footprint. The device also appears in industrial handheld scanners and medical wearables where sealed enclosures prevent the use of traditional charging connectors.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the STWLC68 datasheet?
STWLC68 Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STWLC68?
Compatible alternatives and drop-in replacements for STWLC68:
Frequently Asked Questions
What wireless charging standard and power level does STWLC68 support?
STWLC68 is compliant with the Qi v1.2 specification and supports the 5 W baseline power profile. It communicates with a Qi transmitter via load modulation at frequencies between 100 kHz and 250 kHz, enabling both power delivery negotiation and foreign-object detection handshake protocols required by the Wireless Power Consortium standard.
How does STWLC68 protect a lithium-ion battery during wireless charging?
STWLC68 integrates over-voltage protection, over-current limiting, and over-temperature shutdown to prevent damage to the host battery during wireless charging. If the rectified output voltage exceeds the programmed threshold or the junction temperature rises above approximately 125 °C, the device halts power transfer and signals the transmitter to reduce field strength, protecting a 3.7 V Li-ion cell from unsafe charge conditions.
For a sealed wearable with no charging port, how does STWLC68 simplify the hardware design?
STWLC68 integrates the rectifier, LDO post-regulator, and Qi communication block into a single IC, reducing the external component count needed for a complete 5 W wireless charging receiver to fewer than 10 passive components. This high integration enables a sealed IP68 wearable to receive power inductively through the case, eliminating the connector seal engineering and waterproofing complexity associated with wired USB or POGO-pin charging ports.
What distinguishes STWLC68 from wired USB charging controllers in a smartwatch BOM?
Unlike a wired USB charging controller that requires a physical connector, ESD protection diodes, and connector retention hardware, STWLC68 uses inductive coupling at 100 kHz to 250 kHz to transfer up to 5 W through the device chassis. This eliminates 3 to 5 BOM line items, reduces PCB area by removing the USB receptacle footprint, and enables thinner device profiles since no connector cutout is needed in the housing.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
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