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FDC2214QRGHRQ1
Texas Instruments
28-BIT CAPACITANCE-TO-DIGITAL CO
2261 Pcs New Original In Stock
Capacitive Touch Proximity Detector 16-WQFN (4x4)
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5.0 / 5.0
- (244 Ratings)
FDC2214QRGHRQ1
Product Overview
1286528
DiGi Electronics Part Number
FDC2214QRGHRQ1-DGManufacturer
Texas Instruments
FDC2214QRGHRQ1
Description
28-BIT CAPACITANCE-TO-DIGITAL COInventory
2261 Pcs New Original In Stock
Capacitive Touch Proximity Detector 16-WQFN (4x4)
Quantity
Minimum 1
Minimum 1
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FDC2214QRGHRQ1 Technical Specifications
Category
Interface, Sensor, Capacitive Touch
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Active
DiGi-Electronics Programmable
Not Verified
Type
Proximity Detector
Proximity Detection
Yes
Number of Inputs
4
LED Driver Channels
-
Interface
I2C
Resolution
28 b
Voltage - Supply
2.7V ~ 3.6V
Current - Supply
2.1mA
Operating Temperature
-40°C ~ 125°C
Grade
Automotive
Qualification
AEC-Q100
Mounting Type
Surface Mount
Package / Case
16-WFQFN Exposed Pad
Supplier Device Package
16-WQFN (4x4)
Base Product Number
FDC2214
Datasheet & Documents
Manufacturer Product Page
FDC2214QRGHRQ1 Specifications
HTML Datasheet
FDC2214QRGHRQ1-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
-296-44527-1
2156-FDC2214QRGHRQ1
296-44527-2
296-44527-1
-296-44527-1-DG
296-44527-6
TEXTISFDC2214QRGHRQ1
Standard Package
4,500
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
합리적인 가격과 친환경 포장으로 소비자의 마음을 사로잡았어요.
de desembre 02, 2025
Après-vente de qualité, ils ont pris en charge mes soucis avec professionnalisme.
de desembre 02, 2025
DiGi Electronics liebt die Natur – das merkt man an den nachhaltigen Verpackungen.
de desembre 02, 2025
Their after-sales team offers personalized support that I find very helpful.
de desembre 02, 2025
The friendliness of their staff adds a personal touch to my experience.
de desembre 02, 2025
Their commitment to excellence is evident in both their products and their delivery service.
de desembre 02, 2025
Their customer-focused approach makes them a preferred partner.
de desembre 02, 2025
Affordable prices and professional service—DiGi Electronics is the best.
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Frequently Asked Questions (FAQ)
Can the FDC2214QRGHRQ1 replace a legacy capacitive sensing solution using the Microchip MTCH6303 in an automotive dashboard proximity detection system without requiring major firmware changes?
The FDC2214QRGHRQ1 is not a direct drop-in replacement for the MTCH6303 due to fundamental architectural differences—the FDC2214 uses a 28-bit capacitance-to-digital converter with I2C interface and requires external electrode design, while the MTCH6303 integrates a full touch controller with GPIO and USB. However, in a proximity-only application with I2C host control, the FDC2214 can be adapted with firmware modifications to handle its higher-resolution output and configurable excitation frequency. Key considerations include re-tuning electrode sensitivity, adjusting I2C timing, and validating AEC-Q100 compliance for automotive environments. A full system re-validation is recommended due to differing noise immunity and response latency characteristics.
What are the critical layout and grounding risks when integrating the FDC2214QRGHRQ1 into a high-vibration automotive PCB with mixed analog/digital signals?
When designing with the FDC2214QRGHRQ1 in automotive environments, improper grounding and layout can lead to false triggering or reduced sensitivity. The exposed pad (EP) must be connected to a solid analog ground plane with multiple vias to minimize thermal and electrical impedance. Keep sensor traces short, shielded, and away from high-speed digital lines (e.g., CAN, LIN, or PWM signals) to prevent capacitive coupling. Use a star-ground topology to isolate the FDC2214’s analog ground from noisy digital return paths. Additionally, avoid routing sensor lines near power regulators or motor drivers. Failure to follow these practices may result in EMI-induced errors or degraded SNR, especially under temperature cycling from -40°C to 125°C.
How does the FDC2214QRGHRQ1 perform in humid or condensation-prone environments, and what design mitigations are needed to prevent false proximity detection?
The FDC2214QRGHRQ1 is sensitive to parasitic capacitance changes caused by moisture, which can mimic proximity events. In high-humidity or condensation scenarios (e.g., exterior door handles or under-hood applications), surface water films can create false triggers. To mitigate this, use hydrophobic conformal coating on the sensor electrode and surrounding PCB area. Implement dynamic baseline tracking in firmware to adapt to slow environmental drift. Additionally, design the electrode with a guard ring driven at the same potential to shunt leakage currents. TI’s reference designs recommend a minimum 2mm clearance between sensor and any grounded shield. Without these measures, reliability in real-world automotive conditions may be compromised despite the device’s AEC-Q100 qualification.
Can the FDC2214QRGHRQ1 be used reliably in a multi-sensor array configuration where four units share the same I2C bus in a vehicle interior lighting control system?
Yes, the FDC2214QRGHRQ1 supports multi-device I2C operation, but careful address management and bus loading must be observed. Each device has a fixed I2C address (0x2A or 0x2B based on ADDR pin), so only two can coexist on the same bus without additional hardware. For four units, use an I2C multiplexer (e.g., TI TCA9544A) or assign unique addresses via external logic. Ensure total bus capacitance stays below 400 pF to maintain signal integrity at 100 kHz or 400 kHz. Also, synchronize measurement timing to avoid simultaneous excitation, which can cause crosstalk through shared power or ground planes. Poor synchronization may lead to cross-talk-induced false detection, especially in tightly packed interior modules.
What are the long-term reliability concerns when using the FDC2214QRGHRQ1 in under-hood automotive applications, and how does its MSL 3 rating impact assembly and rework processes?
The FDC2214QRGHRQ1’s MSL 3 rating (168 hours floor life) requires strict moisture control during assembly—exposure beyond this window without proper baking can lead to popcorning during reflow, especially in the 16-WQFN exposed pad package. In under-hood applications, thermal cycling from -40°C to 125°C accelerates solder joint fatigue, so ensure adequate pad design and use SAC305 or higher-reliability solder. The device itself is AEC-Q100 Grade 1 qualified, making it suitable for engine compartment use, but long-term drift in capacitance baseline may occur due to aging of conformal coatings or PCB material. Implement periodic self-calibration routines in firmware and avoid mechanical stress on the package during conformal coating application. Failure to manage these factors can result in intermittent faults over the vehicle’s lifetime.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
FDC2214QRGHRQ1 CAD Models
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