ST25R3915-AQWT STMicroelectronics Integrated Circuit (Quad Flat No-Lead) In Stock
ST25R3915-AQWT is an STMicroelectronics AEC-Q100 automotive-grade high-frequency NFC/RFID reader IC delivering up to 1 W RF output power on the 13.56 MHz band with a supply voltage range of 2.4 V to 5.5 V. It supports ISO 15693, ISO 14443A/B, and NFC-V protocols in a compact 32-lead QFN package. Designed for automotive keyless entry and EV charging authentication applications.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat No-Lead
- Pin Count
- 33
- Lifecycle
- ACTIVE
- Datasheet
- ST25R3915-AQWT Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ST25R3915-AQWT?
- 1 W RF output power at 13.56 MHz enabling long-range NFC reading up to 20 cm in automotive access and payment applications
- AEC-Q100 qualified with 2.4 V to 5.5 V supply range covering automotive 3.3 V and 5 V power rails across -40°C to +125°C
- Multi-protocol support for ISO 14443A/B, ISO 15693, and NFC-V in a single 32-lead QFN enabling universal card and tag compatibility
What is ST25R3915-AQWT used for?
ST25R3915-AQWT is deployed in automotive keyless-entry and passive-entry passive-start (PEPS) systems where it reads NFC-enabled key fobs and smartphones at distances up to 20 cm using its 1 W RF output. It supports EV charging station authentication via ISO 15693 and ISO 14443 contactless smart cards, enabling plug-and-charge workflows in electric vehicle supply equipment (EVSE). The AEC-Q100 qualification and wide operating temperature range of -40°C to +125°C also make it suitable for in-vehicle toll tag readers and fleet management transponder systems.
What are the specifications of ST25R3915-AQWT?
| JESD-30 Code | S-PQCC-N32 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC32,.2SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Screening Level | AEC-Q100 |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.4V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | NFC CONTROLLER |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.30 |
| Country of Origin | Thailand |
Where can I find the ST25R3915-AQWT datasheet?
ST25R3915-AQWT Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for ST25R3915-AQWT?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What RF output power and frequency does ST25R3915-AQWT deliver for automotive NFC applications?
ST25R3915-AQWT delivers up to 1 W of RF output power at 13.56 MHz, the standard HF NFC operating frequency. This output level supports reader-to-tag communication distances of up to 20 cm, sufficient for automotive passive-entry and payment applications without an external power amplifier.
Which NFC and RFID protocols does ST25R3915-AQWT support for multi-card system designs?
ST25R3915-AQWT supports ISO 14443A, ISO 14443B, ISO 15693, and NFC-V protocols in a single IC, covering the full range of contactless smart cards, NFC Forum tags, and HF RFID transponders. This multi-protocol capability means one design handles classic MiFare 13.56 MHz cards alongside modern NFC smartphones and ISO 15693 vicinity tags without hardware changes.
How does AEC-Q100 certification affect ST25R3915-AQWT's suitability for underdash automotive NFC readers?
AEC-Q100 Grade 1 certification confirms ST25R3915-AQWT has been stress-tested across a junction temperature range of -40°C to +125°C, meeting automotive reliability requirements for underdash and door-module environments. Non-qualified commercial NFC ICs are typically rated only to +85°C, which is insufficient for enclosed automotive cabins that can reach 105°C in summer parking conditions.
What supply voltage range does ST25R3915-AQWT accept and how does this simplify automotive power design?
ST25R3915-AQWT operates from 2.4 V to 5.5 V, covering both 3.3 V and 5 V automotive ECU power rails without a dedicated LDO for the NFC front-end. This dual-voltage compatibility reduces BOM components and allows the same PCB design to be used in 3.3 V CMOS-dominant platforms and 5 V legacy systems across different vehicle models.
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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.
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