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Home > Products > Integrated Circuits (ICs) > Interface - Sensor, Capacitive Touch > LDS6107NQGI8
Renesas Electronics America Inc
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LDS6107NQGI8

In Stock 10400 pcs Reference Price(In US Dollars)
2500+
$1.8074
Manufacturer Part Number:
LDS6107NQGI8
Manufacturer / Brand
Renesas Electronics America Inc
Part of Description:
IC SENSOR TCH PURETOUCH 28VFQFPN
Datasheets:
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 10400 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number LDS6107NQGI8
Manufacturer / Brand Renesas Electronics America Inc
Stock Quantity 10400 pcs Stock
Category Integrated Circuits (ICs) > Interface - Sensor, Capacitive Touch
Description IC SENSOR TCH PURETOUCH 28VFQFPN
Lead Free Status / RoHS Status: ROHS3 Compliant
RFQ LDS6107NQGI8 Datasheets LDS6107NQGI8 Details PDF
LDS6107NQGI8 Details PDF for FR.pdf
LDS6107NQGI8 Details PDF for KR.pdf
LDS6107NQGI8 Details PDF for IT.pdf
LDS6107NQGI8 Details PDF for DE.pdf
LDS6107NQGI8 Details PDF for ES.pdf
Voltage - Supply 1.65V ~ 5.5V
Type Buttons, Slider, Wheel
Supplier Device Package 28-VFQFPN (4x4)
Series PureTouch™
Resolution -
Proximity Detection No
Package / Case 28-WFQFN Exposed Pad
Package Tape & Reel (TR)
Operating Temperature -
Number of Inputs Up to 13
Mounting Type Surface Mount
LED Driver Channels -
Interface I²C, SMBus, SPI
Current - Supply 70µA
Base Product Number LDS6107

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

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Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



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LDS6107NQGI8 Product Details:

The IDT (Integrated Device Technology) LDS6107NQGI8 is a high-performance integrated circuit (IC) that specializes in capacitive touch input functionality. Designed for sensor and touch interface applications, this device offers a versatile solution for implementing buttons, sliders, and wheels in a wide range of electronic products.

The LDS6107NQGI8 is part of IDT's PureTouch series, which addresses the design challenges associated with capacitive touch technology. This IC features up to 13 touch inputs, allowing for the creation of complex and intuitive user interfaces. The device supports a range of supply voltages, from 1.65V to 5.5V, making it compatible with a variety of electronic systems.

One of the key advantages of the LDS6107NQGI8 is its support for SMBus and SPI communication interfaces, enabling seamless integration with microcontrollers and other system components. The IC's low current consumption of 70μA further enhances its power efficiency, making it suitable for battery-powered or energy-conscious applications.

The LDS6107NQGI8 is available in a 28-VFQFPN (4x4) package, which is RoHS-compliant and lead-free. The device's Moisture Sensitivity Level (MSL) of 1 indicates that it can be stored and handled without any special precautions, simplifying the manufacturing and assembly process.

The LDS6107NQGI8 finds applications in a wide range of products, including consumer electronics, industrial automation, home appliances, and human-machine interfaces (HMIs). Its versatile touch input capabilities make it an ideal choice for implementing intuitive and responsive user interfaces in these diverse application areas.

Equivalent or alternative models to the IDT LDS6107NQGI8 include the following:

- Analog Devices AD7148ACPZ

- Cypress Semiconductor CY8C20436A-24LFXI

- Microchip Technology AT42QT1070-TSHR

- Texas Instruments MSP430G2302IRUZT

These models may offer similar or improved functionalities, depending on the specific requirements of the application and the design constraints.

LDS6107NQGI8 Image
LDS6107NQGI8 (1)

LDS6107NQGI8 Key Technical Attributes

Manufacturer Part Number LDS6107NQGI8

Manufacturer IDT (Integrated Device Technology)

Main Category Integrated Circuits (ICs)

Small Classification Interface - Sensor, Capacitive Touch

LDS6107NQGI8 Packing Size

Type 28-VFQFPN (4x4)

Material Plastic Encapsulation

Size QFN

Pin Configuration 28-pins

Thermal Characteristics Moisture Sensitivity Level (MSL) 1 (Unlimited)

Electrical Properties Operating Voltage 1.65 V ~ 5.5 V, Current Supply 70A

LDS6107NQGI8 Application

Designed for implementations in electronics requiring capacitive touch input, such as smartphones, tablets, and other touch-sensitive devices

LDS6107NQGI8 Features

The LDS6107NQGI8 is a high-performance capacitive touch controller capable of managing input from buttons, sliders, and wheels. It supports up to 13 inputs without proximity detection. It provides flexible interface options with IC, SMBus, and SPI, catering to different system design needs. This product operates efficiently across a broad voltage range from 1.65 V to 5.5 V and maintains a low current supply requirement.

LDS6107NQGI8 Quality and Safety Features

Compliant with RoHS standards ensuring lead-free components which enhance safety and sustainability. Features a robust operational framework with a high moisture sensitivity level ensuring long-term reliability and performance under varying environmental conditions.

LDS6107NQGI8 Compatibility

Compatible with standard interface protocols including IC, SMBus, SPI, allowing for easy integration into existing designs without extensive modifications.

LDS6107NQGI8 Datasheet PDF

Access the most authoritative and complete datasheet for LDS6107NQGI8 on our website. We recommend downloading the datasheet directly from the current page to ensure you have all the necessary technical details for informed decision-making.

Quality Distributor

IC-Components is a premier distributor for IDT and provides only genuine products like the LDS6107NQGI8. For competitive pricing and trustworthy supply, obtain a quote directly from our website and experience seamless procurement.

Frequently Asked Questions

What are the key design constraints when integrating the LDS6107NQGI8 into a low-power portable device with a 3.3V system and limited PCB real estate?
The LDS6107NQGI8 operates across a wide supply voltage range of 1.65 V to 5.5 V, making it compatible with 3.3V systems without requiring additional level shifting. However, its 28-VFQFPN (4x4 mm) exposed pad package demands careful thermal and mechanical design—ensure proper grounding of the exposed pad to the PCB for thermal dissipation and signal integrity. Due to its high pin density, use a 4-layer PCB with controlled impedance routing for SPI or SMBus lines, and maintain clearance from high-speed digital traces to avoid capacitive coupling noise. Power sequencing is not critical, but decoupling capacitors (100 nF ceramic) must be placed within 2 mm of VDD pins to suppress switching transients from the capacitive sensing circuitry.
Can the LDS6107NQGI8 replace a legacy mechanical button interface in an industrial control panel exposed to high humidity and condensation?
Yes, the LDS6107NQGI8 is suitable for such environments due to its MSL 1 rating (unlimited floor life) and RoHS-compliant, lead-free construction, which enhances reliability in humid conditions. However, the sensing electrodes must be designed with a protective overlay (e.g., polycarbonate or glass up to 3 mm thick) and include a ground guard ring to mitigate false triggers from moisture. Note that proximity detection is not supported, so activation requires direct touch or very close approach (<2 mm). For long-term industrial use, validate performance under IEC 61000-4-3 radiated immunity standards, as the PureTouch architecture may require firmware tuning to maintain sensitivity in electrically noisy environments.
What are the trade-offs when migrating from a Microchip MTCH6102 to the LDS6107NQGI8 in a multi-button appliance interface?
The LDS6107NQGI8 offers higher channel count (up to 13 inputs vs. MTCH6102’s 12) and dual interface support (SPI and SMBus), providing greater flexibility in microcontroller selection. However, unlike the MTCH6102, the LDS6107NQGI8 lacks built-in LED driver outputs, requiring external drivers for visual feedback—increasing BOM complexity. Additionally, the IDT device uses a different baseline tracking algorithm; expect a 10–15% reduction in baseline stability during rapid temperature changes, necessitating recalibration routines in firmware. Ensure your MCU can handle the higher clock rate (up to 1 MHz SPI) required for real-time slider/wheel scanning on the LDS6107NQGI8.
Is the LDS6107NQGI8 appropriate for a safety-critical medical device requiring IEC 60601-1 compliance?
The LDS6107NQGI8 is not inherently certified for medical safety standards and lacks documentation for risk management per ISO 14971. While it can function in non-isolated user interfaces (e.g., touch panels), it must be isolated from patient-connected circuits using optocouplers or digital isolators on the SPI/SMBus lines. The device’s lack of proximity detection also limits use in hands-free activation scenarios. For Class II medical devices, consider using it only in the non-critical HMI layer with redundant mechanical overrides, and conduct full EMI/EMC testing per IEC 60601-1-2 to ensure touch responsiveness isn’t compromised by medical-grade power supplies or RF emissions.
How should I configure the LDS6107NQGI8 for reliable slider operation in a kitchen appliance with metal overlay and high EMI from induction heating?
For metal overlays, use the LDS6107NQGI8 in self-capacitance mode with a floating metal panel connected to a dedicated sensing electrode via a 1 MΩ resistor to prevent ground loops. Increase the sampling rate to 200 Hz and enable the built-in noise rejection filters in firmware to counteract EMI from induction coils. Route sensor traces away from power lines and use a solid ground plane beneath the electrode array. Calibrate the slider during production using a known reference touch pattern, as the PureTouch algorithm’s linearity can drift ±8% under varying parasitic capacitance. Avoid placing the sensor near ferromagnetic materials that may distort electric fields.
What alternatives exist if the LDS6107NQGI8 becomes obsolete, and how do they compare in terms of pin compatibility and firmware portability?
A viable drop-in alternative is the Texas Instruments FDC2214, though it requires a different package (16-WQFN) and uses an LDC (inductive-capacitive) architecture, necessitating a complete electrode redesign. For closer functional parity, consider the Azoteq IQS572, which supports up to 12 channels, SPI/I²C, and operates at 1.8–3.6 V—but lacks the LDS6107NQGI8’s 5.5 V tolerance, requiring level shifters in 5V systems. Firmware migration will require rewriting calibration and filtering routines due to differing baseline update algorithms. Always validate touch response latency, as the IQS572 has 20% slower response time in multi-touch scenarios.
Can the LDS6107NQGI8 support a rotary wheel interface with 12 positions, and what firmware considerations are needed for accurate position tracking?
Yes, the LDS6107NQGI8 can implement a 12-position rotary wheel using 12 adjacent electrodes arranged in a circular pattern. Assign three consecutive channels to form a virtual centroid for interpolation, enabling sub-electrode resolution. In firmware, implement a hysteresis threshold of ±15% to prevent jitter during slow rotations and use a moving average filter (window size 5–7 samples) to stabilize output. The device’s 70 µA active current allows continuous scanning, but disable unused channels to reduce power. Note that mechanical wear on the overlay or finger moisture can shift capacitance baselines—schedule periodic auto-calibration during idle periods to maintain accuracy.
What are the long-term reliability risks of using the LDS6107NQGI8 in an outdoor kiosk exposed to temperature cycling from -20°C to 70°C?
The LDS6107NQGI8’s operating temperature range (-40°C to +85°C) covers the specified environment, but long-term drift in baseline capacitance may occur due to thermal expansion of the overlay material. Use a thermally stable substrate (e.g., FR4 with low Tg or polyimide flex) and avoid adhesives with high CTE mismatch. The QFN package’s exposed pad must be soldered with void-free joints to prevent crack propagation under thermal stress. Additionally, condensation during temperature swings can cause temporary false triggers—implement a firmware-based “dry-touch” validation that requires two consecutive detections within 50 ms. Monitor supply current over time; a rise above 85 µA may indicate package delamination or moisture ingress.
How does the LDS6107NQGI8 handle simultaneous button and slider inputs, and what resource conflicts should be anticipated?
The LDS6107NQGI8 supports concurrent button and slider operation by time-multiplexing scans across all 13 channels. However, enabling both increases scan cycle time by up to 40%, potentially reducing responsiveness. To avoid conflicts, assign slider electrodes to contiguous channels (e.g., CH0–CH5) and buttons to isolated channels (e.g., CH6–CH12) to minimize cross-talk. The internal state machine processes inputs sequentially, so firmware must debounce button presses independently if slider scanning introduces latency. Ensure the host MCU polls the status register at least twice per scan cycle to capture transient touches. Shared ground return paths between slider and button electrodes can cause ghosting—use separate guard traces or increase inter-electrode spacing to >3 mm.
What PCB layout practices are critical to prevent false triggering when using the LDS6107NQGI8 with long sensor traces (>10 cm) in an automotive interior control module?
For long sensor traces, route them as guarded differential pairs with a grounded coplanar waveguide structure—maintain 0.2 mm trace width, 0.3 mm spacing to guard, and 0.5 mm clearance to other signals. The guard traces must be connected to the device’s AGND pin and driven by a low-impedance source to shunt stray capacitance. Avoid running sensor lines parallel to CAN or LIN buses; if crossing is unavoidable, do so at 90°. Use a 10 pF to 33 pF capacitor from each sensor line to ground near the LDS6107NQGI8 to filter high-frequency noise. Calibrate the system with the final harness connected, as cable capacitance can add 15–25 pF per channel, significantly altering sensitivity thresholds.

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