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Melexis Technologies NV MLX75030RLQ-AAA-000-RE
- Part No.:
- MLX75030RLQ-AAA-000-RE
- Manufacturer:
- Melexis Technologies NV
- Category:
- Sensor and Detector Interfaces
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
MLX75030RLQ-AAA-000-RE.pdf
- Description:
- IC OPTICAL PROXIMITY 24QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,227
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Product details
Overview
MLX75030RLQ-AAA-000-RE from Melexis is a dual-channel universal ActiveLight sensor interface IC designed for robust optical proximity and gesture sensing in high-ambient-light environments. It integrates two independent active light channels (A/B) with hardware-level DC light cancellation, two logarithmic ambient light channels (C/D), a 16-bit ADC, temperature sensor, SPI interface, and LED drivers - enabling touchless HMI in automotive and consumer displays.
For engineers reviewing the MLX75030RLQ-AAA-000-RE datasheet, pinout, applications, or equivalent options, this device delivers simultaneous active reflection and ambient light measurement with programmable compensation, low-power sleep/standby modes, and diagnostic-ready operation across -40°C to +105°C.
Technical Context
The MLX75030RLQ-AAA-000-RE implements two parallel analog signal chains: one for modulated NIR active light detection (pins 9–10) with integrated TIA, DC cancellation, and carrier-frequency selection (45.7–109.4 kHz), and another for logarithmic ambient light sensing (pins 11–12, 13) with 16-bit resolution and ±5°C temperature sensor accuracy. Each active channel supports up to 993 mA LED drive via external FETs (pins 20–21) with <3 µs edge timing.
SPI communication (up to 5 MHz, 8-bit words) configures all functions including channel enablement, gain, diagnostics, and sleep/wake-up control. Internal watchdog timer (140 ms init window), POR thresholds (1.58–2.85 V), and comprehensive error flags (Err2–Err6) support functional safety requirements per AEC-Q100.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Temp | -40°C to +105°C (R-grade automotive qualification) |
| Active Light Channels | 2 independent IR photodiode inputs (PDA/PDB) with hardware DC suppression |
| Ambient Light Channels | 2 logarithmic photodiode inputs (PDC/PDD); 0.0005–1040 µA input range |
| ADC Resolution | 16-bit for all channels; 13-bit effective after 8–16-sample averaging |
| SPI Interface | 8-bit words, 0.5–5 MHz clock, full-duplex with CS, SCLK, MOSI, MISO, DR handshake |
| LED Drive Support | Two analog outputs (Drive LED A/B) controlling external FETs; shunt-based current sensing |
| Power Modes | Active (6 mA), Standby (500 µA), Sleep (50 µA) with wake-up via \WAKE-UP or SPI |
Pinout & Package
MLX75030RLQ-AAA-000-RE is housed in a 24-pin QFN package (4 mm × 4 mm, wettable flanks, LQFP-style footprint), optimized for optical module integration and automated optical alignment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| \MR | Digital Output | Master Reset assertion resets internal logic and registers; open-drain, active-low |
| \WT | Digital Input | Watchdog trigger input; low pulse ≥100 µs required to prevent WDT timeout |
| SCLK | Digital Input | SPI clock input; 0.5–5 MHz, 50 kΩ pull-up recommended |
| MISO | Digital Output | SPI data output (slave-to-master); tri-state when \CS high |
| MOSI | Digital Input | SPI data input (master-to-slave); 50 kΩ pull-down recommended |
| \CS | Digital Input | Chip select; active-low enables SPI transaction and DR signaling |
| DR | Digital Output | Device Ready flag; goes low after valid CS/SCLK setup, indicates readiness for read-out |
| \WAKE-UP | Digital Input | Asynchronous wake-up trigger from Sleep/Standby; low pulse ≥100 µs |
| PDA / PDB | Analog Input | ActiveLight photodiode inputs (A/B); tolerate >10 pF capacitance, support DC cancellation |
| PDC / PDD | Analog Input | Ambient light photodiode inputs (C/D); logarithmic response, 1 nF / 100 pF max input capacitance |
| DIAGAMB | Analog Input | Ambient channel diagnostic node; used for SC-filter monitoring and Err3 detection |
| GNDAMB | Analog I/O | Separate ground return for ambient light circuitry to minimize noise coupling |
| GNDA | Ground | Analog ground reference for ActiveLight and TIA stages |
| VCCA | Supply | Regulated 3.0–3.6 V analog supply; powers TIAs, ADC, sensors |
| AOUT | Analog I/O | Test output; connects to VCCA for calibration or debug use |
| Shunt R GND / Shunt R- | Analog Input | Current-sense feedback nodes for LED driver shunt resistor (1–10 Ω) |
| Drive LED A / B | Analog Output | FET gate drive outputs; 1.05–993 mA LED current capability with <3 µs rise/fall |
| CEXT | Analog Input | External blocking capacitor connection to GNDA; stabilizes internal bias |
| VCCD | Supply | Digital supply (3.0–3.6 V); powers SPI, registers, control logic |
| GNDD | Ground | Digital ground reference; isolated from GNDA/GNDAMB for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Dual active light channels with hardware DC cancellation | Enables sunlight-immune proximity detection without software subtraction or external filtering |
| Logarithmic ambient light sensing (C/D) | Supports 6-decade dynamic range (0.5 nA–1.04 mA) for display dimming under indoor/outdoor lighting |
| Integrated 16-bit ADC + temperature sensor | Delivers calibrated ambient and active measurements with ±5°C thermal accuracy over full operating range |
| Programmable LED drive with shunt sensing | Allows precise current control up to 993 mA using external FETs and 1–10 Ω shunts |
| Functional safety diagnostics | Five dedicated error flags (Err2–Err6), watchdog timer, POR monitoring, and voltage regulator supervision |
| Low-power operational states | 50 µA sleep mode and 500 µA standby enable battery-sensitive applications like mobile HMI |
Applications
| Optical Proximity Sensing | Touchless Gesture Recognition |
|---|---|
Use Scenario: Detecting hand presence near automotive infotainment screen to wake display and disable touch lockout. IC Role / Device Role / Timing Role: MLX75030RLQ-AAA-000-RE performs synchronized active light bursts (45.7–109.4 kHz) on Channel A/B while suppressing DC sunlight up to 900 µA. Use Value: Enables reliable wake-up at >15 cm distance under direct sunlight (140–900 µA DC interference) with <2.5 ms per-channel response. | Use Scenario: Recognizing swipe left/right above center console using differential active light intensity patterns. IC Role / Device Role / Timing Role: MLX75030RLQ-AAA-000-RE independently samples PDA and PDB at 2.5 ms intervals, feeding delta values to host MCU for gesture classification. Use Value: Delivers sub-100-ms gesture latency with hardware-level ambient rejection, eliminating need for host-side background subtraction. |
| Driver/Passenger Discrimination | Touch Screen Wake-up on Proximity |
Use Scenario: Differentiating front-seat occupant position (driver vs. passenger) using dual-zone IR reflection profiles. IC Role / Device Role / Timing Role: MLX75030RLQ-AAA-000-RE measures active light return from left/right optical zones (A/B) and ambient levels (C/D) simultaneously. Use Value: Provides spatially resolved reflectance data with 13-bit effective resolution, enabling occupancy classification without additional sensors. | Use Scenario: Activating smartphone/tablet display when user's palm approaches within 5–20 cm. IC Role / Device Role / Timing Role: MLX75030RLQ-AAA-000-RE operates in low-power sleep mode (50 µA), waking on \WAKE-UP signal triggered by initial proximity event. Use Value: Achieves <100 ms total wake-and-measure latency while extending battery life beyond 1 year in always-on proximity mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar active ambient light sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VEML6040 | Single-channel ambient light sensor only; no active light capability, no LED drivers, no DC cancellation | Limited to display dimming; cannot perform proximity or gesture functions | Select when only ambient light measurement is required and cost sensitivity outweighs multi-function integration |
| ams TMD2755 | Dual-channel ambient + proximity (VCSEL-based); lacks logarithmic ambient range, no integrated temperature sensor, no hardware DC cancellation | Suitable for basic proximity but degrades under strong DC light; requires external compensation | Choose for compact single-package solutions where sunlight immunity is secondary to size and BOM count |
Compared with VEML6040 and TMD2755, MLX75030RLQ-AAA-000-RE uniquely combines dual active light channels with hardware DC suppression, dual logarithmic ambient sensing, and integrated LED drive - making it the only option capable of robust touchless HMI in automotive-grade lighting conditions without external signal conditioning.
Availability
MLX75030RLQ-AAA-000-RE is available at Aetrix Electronics and suitable for automotive human-machine interfaces, consumer gesture recognition systems, and industrial proximity sensing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MLX75030RLQ-AAA-000-RE 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
Melexis is a Belgian semiconductor company specializing in magnetic, infrared, and optical sensor ICs for automotive, industrial, and consumer applications.
The MLX75030 product line was developed specifically for high-reliability optical human-machine interfaces, integrating active light modulation, ambient light rejection, and functional safety features into a single QFN package.
FAQ
What is the primary function of the MLX75030RLQ-AAA-000-RE in optical sensing systems?
The MLX75030RLQ-AAA-000-RE serves as a universal ActiveLight sensor interface IC that concurrently manages two active light reflection channels (A/B) with hardware-based DC light cancellation and two logarithmic ambient light channels (C/D). Its core function is to enable robust proximity and gesture detection in high-ambient-light environments - such as automotive cabins or sunlit consumer devices - by delivering calibrated, interference-resistant optical measurements directly to the host microcontroller via SPI. The MLX75030RLQ-AAA-000-RE integrates all necessary analog front-end circuitry, ADC, temperature sensing, and LED drive control, minimizing external component count.
How does the MLX75030RLQ-AAA-000-RE handle strong DC background light like sunlight?
The MLX75030RLQ-AAA-000-RE handles strong DC background light through an integrated hardware-level DC light cancellation circuit specifically designed for its ActiveLight channels (A/B). This circuit dynamically compensates for DC photocurrents up to 900 µA - typical of direct sunlight - by applying programmable segment-based compensation (five segments, up to 20% of LED current) using internal DACs and adaptive algorithms. Unlike software-based subtraction, this analog cancellation occurs before digitization, preserving signal integrity and SNR. The MLX75030RLQ-AAA-000-RE achieves virtual independence from background light without requiring host MCU intervention or additional optical filters.
What are the key power management features of the MLX75030RLQ-AAA-000-RE?
The MLX75030RLQ-AAA-000-RE offers three distinct low-power operational states: Active mode (6 mA typical), Standby mode (500 µA), and Sleep mode (50 µA). It supports asynchronous wake-up from Sleep or Standby via the \WAKE-UP pin (≥100 µs low pulse) or SPI activity. Power-on reset (POR) is managed internally with hysteresis (60–130 mV), and the integrated watchdog timer provides fail-safe recovery with configurable windows (140 ms init, 70 ms open/closed). These features allow the MLX75030RLQ-AAA-000-RE to meet stringent automotive and battery-powered HMI requirements while maintaining functional safety compliance.
Can the MLX75030RLQ-AAA-000-RE drive LEDs directly, or does it require external components?
The MLX75030RLQ-AAA-000-RE does not drive LEDs directly but provides two dedicated analog gate-drive outputs (Drive LED A and Drive LED B) designed to control external N-channel FETs. It includes shunt-resistor-based current sensing (Shunt R-, Shunt R GND) and supports shunt values from 1 Ω to 10 Ω, enabling precise LED current regulation up to 993 mA. This architecture decouples high-current switching from the IC, improving thermal performance and EMI behavior. External FETs, gate resistors, and bypass capacitors are required - but no additional current-sense amplifiers or PWM controllers - making the MLX75030RLQ-AAA-000-RE a complete, minimal-BOM solution for active optical sensing.
What type of SPI interface does the MLX75030RLQ-AAA-000-RE support, and what are its timing limits?
The MLX75030RLQ-AAA-000-RE supports standard 4-wire SPI with \CS, SCLK, MOSI, and MISO, plus a DR (Device Ready) handshake signal. It uses 8-bit words, operates at clock frequencies from 0.5 MHz to 5 MHz, and requires minimum timing margins: 50 ns between \CS low and first SCLK edge, 50 ns hold time after last SCLK, and 50 ns inter-frame gap. The DR signal asserts low within 0–232 µs after \CS activation to indicate readiness for read-out. All SPI commands - including register read/write, measurement start, sleep/standby entry, and diagnostics - are implemented via documented instruction words (e.g., SM, RO, WR, RSLP), ensuring deterministic host control of the MLX75030RLQ-AAA-000-RE.
MLX75030RLQ-AAA-000-RE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Melexis Technologies NV
- Package/Case:
- 24-VFQFN Exposed Pad
- Series:
- -
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Sensor Interface
- Input Type:
- -
- Output Type:
- -
- Current - Supply:
- 2.1 mA
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QFN (4x4)
MLX75030RLQ-AAA-000-RE FAQ
1.How can I place an order for MLX75030RLQ-AAA-000-RE through Aetrix?
Please submit a Request for Quotation (RFQ) for MLX75030RLQ-AAA-000-RE 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 MLX75030RLQ-AAA-000-RE reliable?
The price and inventory of MLX75030RLQ-AAA-000-RE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX75030RLQ-AAA-000-RE is usually 5 days.
3.What payment methods are accepted for MLX75030RLQ-AAA-000-RE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX75030RLQ-AAA-000-RE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MLX75030RLQ-AAA-000-RE?
MLX75030RLQ-AAA-000-RE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MLX75030RLQ-AAA-000-RE 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 MLX75030RLQ-AAA-000-RE?
For technical support, including MLX75030RLQ-AAA-000-RE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX75030RLQ-AAA-000-RE requirements.
6.How does Aetrix verify that MLX75030RLQ-AAA-000-RE is sourced from the original manufacturer or authorized distributors?
All MLX75030RLQ-AAA-000-RE 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 MLX75030RLQ-AAA-000-RE meets industry standards.
7.What is the process for return or replacement of MLX75030RLQ-AAA-000-RE?
All MLX75030RLQ-AAA-000-RE units undergo pre-shipment inspection (PSI). If there is an issue with MLX75030RLQ-AAA-000-RE, 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 MLX75030RLQ-AAA-000-RE part is unused and in its original packaging.
Return procedure for MLX75030RLQ-AAA-000-RE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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