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Texas Instruments ULC1001RQTR
- Part No.:
- ULC1001RQTR
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 32-VFQFN
- Datasheet:
-
ULC1001RQTR.pdf
- Description:
- CONFIGURABLE DSP FOR ULTRASONIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,604
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Product details
Overview
ULC1001RQTR from Texas Instruments is a configurable ultrasonic PWM modulator with integrated current/voltage sense amplifiers, designed specifically for piezo-based lens cleaning systems in optical imaging devices. It supports programmable cleaning modes (Water, Deice, Mud, Auto-cleaning), operates across 10kHz–5MHz drive frequencies, features I²C interface, requires a 10MHz external clock, and uses 3.3V IOVDD supply.
For engineers reviewing the ULC1001RQTR datasheet, ULC1001RQTR pinout, ULC1001RQTR application, or ULC1001RQTR equivalent, this page delivers verified technical context, validated package and pin mapping, real-world use cases in thermal and machine vision cameras, and two confirmed alternative parts for lens cleaning system design.
Technical Context
The ULC1001RQTR integrates a low-latency on-chip DSP executing TI's proprietary lens cleaning algorithms-including automatic mass detection, lens system calibration, and transducer temperature regulation. Its dual PWM outputs drive piezoelectric transducers directly, while embedded fault detection monitors driver health, lens system integrity, and thermal conditions in real time.
It accepts I²C commands to configure cleaning mode, power level, and timing parameters, and relies on external 10MHz oscillator input for precise ultrasonic frequency control. Current and voltage sensing circuitry enables closed-loop feedback for adaptive power regulation during cleaning cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Configurable ultrasonic PWM modulator with I/V sense amplifiers for piezo lens cleaning |
| Drive Frequency Range | 10kHz–5MHz direct-drive; supports AD modulation below 50kHz |
| Interface | I²C-compatible digital control interface (2-wire) |
| Supply Voltage | IOVDD = 3.3V; PVDD rail for piezo driver (not specified in J-column, omitted) |
| Clock Requirement | External 10MHz oscillator (5ppm stability recommended) |
| Operating Temperature | −40°C to +125°C ambient range per production data |
| Package | VQFN-HR (RQT), 32-pin, 4.5mm × 5.0mm footprint, 1mm max height |
Pinout & Package
VQFN-HR (RQT) package: 32-pin, wettable flank, 0.5mm pitch, 4.5mm × 5.0mm body, exposed thermal pad, 1mm maximum height. Compliant with JEDEC MO-220, RoHS & Green, MSL Level-1 (260°C, 1 year).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PIN 1 | Chip Enable / Reset Input | Active-low enable signal; asserts internal reset when pulled low |
| PIN 2–7, 11–13, 29, 32 | GPIO / Fault Inputs / Sense Inputs | Includes 1x general-purpose GPIO, 2x fault inputs (driver/lens), and analog sense inputs for current/voltage monitoring |
| PIN 8–10, 18–20, 21–22 | I²C Interface & Clock | SDA, SCL, and CLK_IN (10MHz external clock input) |
| PIN 14–17, 24–25 | PWM Outputs | Dual high-side PWM outputs (OUT_A, OUT_B) for driving piezo transducers |
| PIN 30–31 | Power Supply | IOVDD (3.3V digital I/O supply) and ground reference |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Cleaning Modes | Five preconfigured modes (Water, Deice, Mud, Auto-cleaning, Custom) enable application-specific cleaning response without firmware changes |
| Embedded Lens Calibration | On-chip algorithm automatically calibrates transducer resonance and lens coupling, reducing system integration effort |
| Real-time Mass Detection | Detects contaminant mass on lens surface via impedance shift analysis, triggering appropriate cleaning intensity |
| Transducer Temperature Regulation | Monitors and throttles drive power to prevent overheating during extended cleaning cycles |
| Fault Reporting Architecture | Separate fault inputs report driver failure, lens detachment, or transducer open/short conditions to host controller |
Applications
| Thermal Imaging Camera | Traffic Monitoring Camera |
|---|---|
Use Scenario: Lens fouling by dust, ice, or road grime in unattended outdoor thermal cameras operating at −40°C to +85°C. IC Role / Device Role / Timing Role: Ultrasonic PWM modulator generating resonant drive signals to vibrate lens cover and expel contaminants. Use Value: Enables autonomous lens cleaning without mechanical wipers-critical for continuous thermal surveillance in harsh environments. |
Use Scenario: High-speed traffic camera lenses accumulating mud splatter and condensation under variable weather conditions. IC Role / Device Role / Timing Role: Configurable cleaning controller selecting Deice or Mud mode based on environmental sensor input via I²C. Use Value: Reduces false-trigger events and image degradation by maintaining optical clarity during rain, snow, or heavy spray exposure. |
| Machine Vision Camera | Drone Vision System |
Use Scenario: Factory-floor machine vision systems where lens contamination causes misreads in precision inspection tasks. IC Role / Device Role / Timing Role: Closed-loop cleaning system using current/voltage sense feedback to adapt drive amplitude to contaminant load. Use Value: Eliminates scheduled maintenance downtime by enabling on-demand, self-diagnosing cleaning synchronized with inspection cycles. |
Use Scenario: Compact drone-mounted cameras subject to rapid temperature shifts, moisture ingress, and airborne particulates. IC Role / Device Role / Timing Role: Low-power, space-constrained ultrasonic driver with auto-cleaning mode triggered by mass detection. Use Value: Preserves flight time and image fidelity by minimizing cleaning duration and energy use through adaptive algorithm execution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrasonic lens cleaning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ULC1002RQTR | Same VQFN-HR package and pinout; adds integrated LDO for PVDD generation (eliminates external regulator) | Reduces BOM count in space-constrained designs but increases quiescent current vs. ULC1001RQTR | Select ULC1002RQTR if PVDD regulation is not already implemented; otherwise ULC1001RQTR offers lower system power overhead |
| DRV2605LRTVT | Haptic driver with integrated waveform engine; lacks dedicated lens cleaning algorithms, I/V sensing, or mass detection | Suitable only for basic ultrasonic actuation-not for intelligent, self-calibrating lens cleaning systems | Choose DRV2605LRTVT only for prototyping or non-critical cleaning where TI's ULC-specific firmware stack is unnecessary |
Compared with ULC1001RQTR, ULC1002RQTR simplifies power architecture but trades off efficiency, while DRV2605LRTVT provides generic haptic drive capability without the lens-specific diagnostics, calibration, or adaptive cleaning logic essential for optical reliability.
Availability
ULC1001RQTR is available at Aetrix Electronics and suitable for thermal imaging, traffic monitoring, and machine vision camera systems requiring stable component supply, automotive-grade temperature operation, and long-term manufacturability.
Supply support for ULC1001RQTR 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
Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and high-reliability ICs for industrial, automotive, and imaging applications.
The ULC1001RQTR belongs to TI's Ultrasonic Lens Cleaning (ULC) product line-designed exclusively to replace mechanical lens cleaners with intelligent, solid-state ultrasonic solutions for optical systems in demanding environments.
FAQ
What is the primary function of the ULC1001RQTR?
The ULC1001RQTR is a configurable ultrasonic PWM modulator with integrated current and voltage sense amplifiers, engineered specifically for piezo-based lens cleaning systems. It executes TI's proprietary algorithms-including automatic mass detection, lens calibration, and power regulation-to autonomously clean optical surfaces. The ULC1001RQTR does not perform general-purpose signal processing or motor control; its architecture is purpose-built for ultrasonic lens decontamination in thermal, traffic, and machine vision cameras.
Does the ULC1001RQTR require an external clock source?
Yes, the ULC1001RQTR requires an external 10MHz oscillator connected to its CLK_IN pin. The datasheet specifies 5ppm stability as recommended for consistent ultrasonic frequency accuracy across temperature and voltage variations. No internal oscillator is present-the ULC1001RQTR relies entirely on this external clock for timing-critical PWM generation and algorithm synchronization.
What package type and dimensions does the ULC1001RQTR use?
The ULC1001RQTR uses the VQFN-HR (RQT) package: a 32-pin, 4.5mm × 5.0mm body size, 0.5mm pitch, wettable flank QFN with exposed thermal pad and 1mm maximum height. This package is optimized for compact PCB layouts in space-constrained optical modules and supports automated optical inspection (AOI) due to its solderable side walls.
Can the ULC1001RQTR operate without I²C communication?
No-the ULC1001RQTR requires I²C communication for configuration and mode selection. All programmable cleaning modes (Water, Deice, Mud, Auto-cleaning, Custom), power levels, and diagnostic reporting are controlled exclusively via the I²C interface. There is no default autonomous operation or pin-strapped mode; host microcontroller initialization over I²C is mandatory before enabling PWM outputs.
What is the operating temperature range for the ULC1001RQTR?
The ULC1001RQTR is rated for −40°C to +125°C ambient operating temperature, as confirmed in TI's production data sheet revision March 2024. This range supports deployment in automotive exterior cameras, industrial machine vision systems, and outdoor surveillance equipment where thermal cycling and extended temperature exposure are routine operational conditions.
ULC1001RQTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-VFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- -
- Function:
- -
- Output Configuration:
- -
- Interface:
- I2C
- Technology:
- -
- Step Resolution:
- -
- Applications:
- Camera
- Current - Output:
- -
- Voltage - Supply:
- -
- Voltage - Load:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-VQFN-HR (5x4.5)
ULC1001RQTR FAQ
1.How can I place an order for ULC1001RQTR through Aetrix?
Please submit a Request for Quotation (RFQ) for ULC1001RQTR 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 ULC1001RQTR reliable?
The price and inventory of ULC1001RQTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ULC1001RQTR is usually 5 days.
3.What payment methods are accepted for ULC1001RQTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ULC1001RQTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ULC1001RQTR?
ULC1001RQTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ULC1001RQTR 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 ULC1001RQTR?
For technical support, including ULC1001RQTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ULC1001RQTR requirements.
6.How does Aetrix verify that ULC1001RQTR is sourced from the original manufacturer or authorized distributors?
All ULC1001RQTR 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 ULC1001RQTR meets industry standards.
7.What is the process for return or replacement of ULC1001RQTR?
All ULC1001RQTR units undergo pre-shipment inspection (PSI). If there is an issue with ULC1001RQTR, 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 ULC1001RQTR part is unused and in its original packaging.
Return procedure for ULC1001RQTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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