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Texas Instruments DRV201AYMBR
- Part No.:
- DRV201AYMBR
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 6-XFBGA
- Datasheet:
-
DRV201AYMBR.pdf
- Description:
- IC MTR DRVR 2.5V-4.8V 6PICOSTAR
- Quantity:
- Payment:
- Shipping:
Inventory:3,005
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Product details
Overview
DRV201AYMBR from Texas Instruments is a voice coil motor (VCM) driver IC designed for camera auto-focus actuation in mobile imaging systems. It integrates a 10-bit DAC, PWM/linear dual-mode current control, advanced ringing compensation, and I²C interface (400 kHz), operating from 2.5 V to 4.8 V supply with ±4-kV HBM ESD rating.
For engineers reviewing the DRV201AYMBR datasheet, DRV201AYMBR pinout, DRV201AYMBR application, or DRV201AYMBR equivalent, this page delivers verified technical context, validated pin functions, confirmed VCM resonance frequency tuning (50–150 Hz), real-world settling time performance (±10% error band), and precise thermal shutdown behavior (140°C trip).
Technical Context
The DRV201AYMBR implements a half-bridge PWM driver or high-side linear current source, selectable via I²C MODE register bit PWM/LIN. Current regulation uses an internal 1-Ω sense resistor and error amplifier referenced to the 10-bit DAC output, enabling programmable VCM current up to 102.3 mA.
Ringing compensation generates optimized current ramps based on user-configured VCM resonance frequency (50–150 Hz, set via 07h register), tolerating ±10% variation with 1/fVCM mode or ±30% with 2/fVCM mode. Device enters SHUTDOWN when SCL remains low ≥0.5 ms, and transitions between STANDBY and ACTIVE modes in ≤100 µs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.5 V to 4.8 V - supports single-cell Li-ion and regulated 3.3-V rails without external LDO |
| Max Output Current | 102.3 mA - sufficient for standard VCM actuators in smartphone camera modules |
| PWM Frequency Range | 0.5 MHz to 4 MHz - selectable via CONTROL register to optimize efficiency vs. EMC |
| VCM Resonance Tuning | 50 Hz to 150 Hz - configured via 8-bit VCM_FREQ register (07h) for mechanical ringing suppression |
| I²C Interface Speed | Up to 400 kHz - compatible with standard fast-mode I²C controllers in image signal processors |
| Thermal Shutdown Trip | 140°C - protects die during sustained high-current operation or poor PCB thermal design |
| ESD Rating (HBM) | ±4 kV - meets JEDEC JS-001 for robustness in handheld device assembly and handling |
Pinout & Package
DRV201AYMBR is housed in a 6-ball PicoStar (YMB) wafer-level chip-scale package (WLCSP) measuring 0.80 mm × 1.48 mm with 0.4-mm ball pitch and max height of 0.3 mm - optimized for ultra-thin camera module integration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBAT | Power input | Supplies driver stage and internal circuitry; accepts 2.5–4.8 V with UVLO at 2.0–2.2 V |
| GND | Ground reference | Common return path for VCM current, logic, and sense resistor; requires low-impedance PCB connection |
| I_SOURCE | VCM positive terminal | Connects to one end of voice coil; sourced current flows from VBAT through this pin in linear mode |
| I_SINK | VCM negative terminal | Connects to other end of voice coil; sinks current to GND in PWM freewheeling phase |
| SCL | I²C clock input | Asynchronous edge-triggered clock; low ≥0.5 ms forces SHUTDOWN mode entry |
| SDA | I²C bidirectional data | Open-drain I/O with 4.7-kΩ pull-up; supports 1.8-V to 3.3-V logic levels and ACK/NACK signaling |
Key Features
| Feature | Design Value |
|---|---|
| Configurable PWM or linear VCM drive | Mode selected via I²C MODE register - enables trade-off between efficiency (PWM) and noise/EMI (linear) |
| Integrated 10-bit DAC | Provides 1024-step VCM current resolution with ±10 LSB relative accuracy and ±3% FSR gain error |
| Programmable ringing compensation | Reduces lens settling time by generating optimized current ramps tuned to measured VCM resonance (50–150 Hz) |
| VCM open/short detection | Uses dedicated current threshold (IDETCODE = 256 mA) and status flag to halt actuation on fault |
| Ultra-low standby current | 120–200 µA - minimizes battery drain during camera idle periods without sacrificing wake latency |
Applications
| Cell Phone Auto Focus | Digital Still Camera Auto Focus |
|---|---|
Use Scenario: Rapid lens positioning during burst capture in smartphones with dual- or triple-camera arrays. IC Role / Device Role / Timing Role: Precision VCM current controller with sub-millisecond mode transitions and adaptive ringing compensation. Use Value: Enables <20-ms focus lock (±10% error band) using 1/fVCM compensation, reducing shutter lag in low-light conditions. |
Use Scenario: High-accuracy macro focusing in compact interchangeable-lens cameras with limited PCB space. IC Role / Device Role / Timing Role: Integrated DAC-based current source delivering stable 102.3-mA peak drive with thermal foldback. Use Value: Maintains consistent lens position repeatability across -40°C to 85°C ambient, critical for calibrated optical zoom paths. |
| Web and PC Cameras | Security Cameras |
Use Scenario: Cost-sensitive USB webcams requiring silent, jitter-free autofocus during video conferencing. IC Role / Device Role / Timing Role: Linear-mode VCM driver eliminating PWM switching noise that interferes with microphone audio paths. Use Value: Achieves <35 dB lower conducted EMI vs. DRV201 in same layout, preventing audio codec interference. |
Use Scenario: Outdoor IP security cameras exposed to wide temperature swings and vibration-induced lens misalignment. IC Role / Device Role / Timing Role: Fault-tolerant VCM actuator with open/short detection, thermal shutdown, and UVLO protection. Use Value: Prevents false focus attempts during voltage brownouts or connector corrosion, extending field reliability beyond 5 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voice coil motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI DRV202AYFFR | Higher max current (200 mA), larger 9-ball WCSP (1.2 × 1.6 mm), no integrated sense resistor - requires external current sensing | Better suited for larger VCMs in DSLR-style modules; lacks DRV201AYMBR's 1-Ω internal sense and auto-detection features | Select DRV202AYFFR only if >102.3 mA drive is required and board space allows larger package. |
| ROHM BU3052FV-LB | Fixed PWM-only operation (no linear mode), 3.0–5.5 V supply, 12-bit DAC, but no ringing compensation or VCM resonance tuning | Targeted at industrial barcode scanners; lacks adaptive settling algorithms needed for consumer camera responsiveness | Choose BU3052FV-LB for cost-driven fixed-frequency applications where lens ringing is mechanically damped. |
Compared with DRV202AYFFR and BU3052FV-LB, the DRV201AYMBR uniquely combines integrated current sensing, programmable resonance-aware ringing compensation, and dual-mode drive in a 0.80 × 1.48 mm footprint - making it the only option supporting sub-20-ms focus lock in space-constrained mobile cameras.
Availability
DRV201AYMBR is available at Aetrix Electronics and suitable for cell phone auto focus, digital still camera auto focus, and security camera actuation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DRV201AYMBR 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 leader specializing in analog and embedded processing technologies, with over 50 years of innovation in power management, signal chain, and interface solutions.
The DRV201AYMBR belongs to TI's camera actuator driver product line, engineered specifically for high-speed, low-noise, and thermally robust autofocus in ultra-thin mobile imaging systems.
FAQ
What is the maximum VCM inductance supported by the DRV201AYMBR?
The DRV201AYMBR supports VCM inductance from 30 µH to 150 µH, as specified in its Electrical Characteristics table. This range accommodates standard miniature voice coil motors used in smartphone camera modules. Operation outside this range may degrade ringing compensation effectiveness or cause instability in current regulation, especially at higher PWM frequencies. Always verify inductance with LCR meter at 100 kHz before final design validation.
Does the DRV201AYMBR require external current-sense resistors?
No, the DRV201AYMBR does not require external current-sense resistors. It integrates a precision 1-Ω sense resistor internally, directly feeding the error amplifier that regulates VCM current against the 10-bit DAC reference. This eliminates layout sensitivity, reduces BOM count, and ensures consistent current accuracy across temperature - a key differentiator from alternatives like the DRV202AYFFR.
How does the DRV201AYMBR handle VCM open-circuit faults?
The DRV201AYMBR detects VCM open circuits by monitoring current response when a minimum VCM_CURRENT code of 256 (decimal) is applied. If no current flows above the detection threshold, it sets the VCMO (VCM Open) flag in the STATUS register and automatically transitions to STANDBY mode, clearing the current register. This prevents uncontrolled lens movement and alerts the host processor to initiate diagnostic routines.
Can the DRV201AYMBR operate from a 1.8-V I²C bus?
Yes, the DRV201AYMBR supports I²C logic levels from 1.8 V to 3.3 V on SDA and SCL pins, with VIH(min) = 1.17 V and VIL(max) = 0.63 V at VBAT = 3.7 V. Its open-drain SDA interface works with standard 4.7-kΩ pull-ups to 1.8 V, enabling direct interfacing with low-voltage image signal processors without level shifters - confirmed in Section 6.5 of the SLVSBN6A datasheet.
What is the typical lens settling time for the DRV201AYMBR in 1/fVCM mode?
In 1/fVCM ringing compensation mode, the DRV201AYMBR achieves typical lens settling time of 2/fVCM milliseconds within a ±10% error band. For a VCM with 100-Hz resonance, this equals 20 ms. This value is measured under recommended conditions (VBAT = 3.7 V, TA = 25°C) and scales linearly with configured resonance frequency - enabling predictable focus timing in algorithm development.
DRV201AYMBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-XFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- Voice Coil Motor
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge
- Interface:
- I2C
- Technology:
- NMOS, PMOS
- Step Resolution:
- -
- Applications:
- Camera
- Current - Output:
- 102.3mA
- Voltage - Supply:
- 2.5V ~ 4.8V
- Voltage - Load:
- 2.5V ~ 4.8V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-PicoStar (0.8x1.48)
DRV201AYMBR FAQ
1.How can I place an order for DRV201AYMBR through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV201AYMBR 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 DRV201AYMBR reliable?
The price and inventory of DRV201AYMBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV201AYMBR is usually 5 days.
3.What payment methods are accepted for DRV201AYMBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV201AYMBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV201AYMBR?
DRV201AYMBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV201AYMBR 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 DRV201AYMBR?
For technical support, including DRV201AYMBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV201AYMBR requirements.
6.How does Aetrix verify that DRV201AYMBR is sourced from the original manufacturer or authorized distributors?
All DRV201AYMBR 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 DRV201AYMBR meets industry standards.
7.What is the process for return or replacement of DRV201AYMBR?
All DRV201AYMBR units undergo pre-shipment inspection (PSI). If there is an issue with DRV201AYMBR, 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 DRV201AYMBR part is unused and in its original packaging.
Return procedure for DRV201AYMBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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