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Texas Instruments DRV10963PDSNR
- Part No.:
- DRV10963PDSNR
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 10-UFDFN Exposed Pad
- Datasheet:
-
DRV10963PDSNR.pdf
- Description:
- IC MOTOR DRIVER 2.1V-5.5V 10SON
- Quantity:
- Payment:
- Shipping:
Inventory:2,769
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Product details
Overview
DRV10963PDSNR from Texas Instruments is a three-phase, sensorless BLDC motor driver IC with integrated power MOSFETs, designed for ultra-quiet CPU fan applications. It operates from 2.1 V to 5.5 V, delivers up to 500 mA output current, features 180° sinusoidal control, and integrates lock detection, short-circuit protection, and anti-voltage surge (AVS) functionality.
For engineers reviewing the DRV10963PDSNR datasheet, DRV10963PDSNR pinout, DRV10963PDSNR application, or DRV10963PDSNR equivalent, key selection criteria include its 10-pin USON package, FG/FGS speed feedback configuration, PWM-based amplitude control, thermal shutdown at 160°C, and OTP-configurable spin-up parameters for reliable fan startup under varying inertia and load conditions.
Technical Context
The DRV10963PDSNR implements a proprietary sensorless, window-less 180° sinusoidal commutation scheme that minimizes torque ripple and acoustic noise. Its control loop dynamically estimates back-EMF without Hall sensors or external RC networks, enabling compact, low-BOM fan drive solutions.
It embeds five independent lock-detection mechanisms-including frequency overflow, BEMF abnormality, speed abnormality, open-loop stuck, and closed-loop stuck-plus soft current limiting (configurable 0–875 mA) and short-circuit protection (1.8 A threshold). All protections trigger automatic high-impedance phase shutdown and auto-restart after TOFF_LOCK (5 s).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.1 V to 5.5 V - Enables direct operation from 3.3 V or 5 V system rails without LDO overhead. |
| Output Current Capability | 500 mA continuous - Sufficient for mid-power notebook and game station CPU cooling fans. |
| Total H+L RDS(on) | <1.5 Ω - Minimizes conduction loss and self-heating in thermally constrained fan modules. |
| Sleep Quiescent Current | 15 µA typical - Extends battery life in portable systems during fan idle periods. |
| PWM Input Frequency Range | 15 kHz to 100 kHz - Supports high-resolution speed control while avoiding audible switching noise. |
| Thermal Shutdown Threshold | 160°C with 10°C hysteresis - Prevents permanent damage during sustained overload or airflow blockage. |
| Lock Detect Time | 0.3 s - Rapid response to rotor stall, minimizing mechanical stress and coil heating. |
Pinout & Package
DRV10963PDSNR is housed in a 3.00 mm × 3.00 mm, 10-pin USON package with an exposed thermal pad on the bottom for enhanced PCB heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (FG) | Open-drain speed indicator output | Provides motor RPM feedback; toggles per 1/2/3 electrical cycles based on FGS/FGOPT OTP settings. |
| 2 (FGS) | Speed indicator selector input | Latched at power-up; selects FG toggle frequency (1×, 2×, or 3× electrical cycle) for RPM calculation. |
| 3 (VCC) | Power supply input | Supplies both logic and integrated MOSFETs; supports UVLO thresholds of 2.1 V (rising) and 1.8 V (falling). |
| 4 (W), 6 (V), 7 (U) | Three-phase motor outputs | Drive BLDC motor windings in sinusoidal commutation; each pair (U-V, V-W, W-U) forms a half-bridge. |
| 5, 9 (GND) | Ground terminals | Dual GND pins reduce ground impedance and improve noise immunity in high-di/dt motor switching. |
| 8 (FR) | Direction control input | Logic-high or logic-low sets rotation direction (U→V→W or U→W→V); dynamically changeable post-startup. |
| 10 (PWM) | Speed control input | 9-bit resolution (0.2% step) PWM duty cycle controls output voltage amplitude (Vphpk = PWMdc × VCC). |
Key Features
| Feature | Design Value |
|---|---|
| Proprietary sensorless 180° sinusoidal control | Eliminates torque ripple and acoustic noise without position sensors or external timing components. |
| OTP-configurable spin-up profile | Adjustable align time (40–600 ms), accelerate rate (10–150 Hz/s), and handoff threshold (12.5–187.5 Hz) optimize startup reliability across motor types. |
| Five-lock-detection schemes | Detects stalled rotors via BEMF abnormality, frequency overflow, speed mismatch, and open/closed-loop stuck conditions - critical for fan safety. |
| Anti-Voltage Surge (AVS) circuitry | Prevents VCC rail overvoltage during deceleration or tri-state events by routing inductive energy to GND instead of VCC. |
| Soft current limit with Kt/Rm compensation | Adaptive voltage limiting (based on measured motor constants) prevents overcurrent during acceleration without abrupt shutdown. |
Applications
| Notebook CPU Fan Control | Game Station Cooling System |
|---|---|
Use Scenario: Precise thermal management in thin-and-light laptops where acoustic noise and power efficiency are critical. IC Role / Device Role / Timing Role: Sensorless BLDC motor driver providing closed-loop speed regulation via FG feedback and PWM command. Use Value: 15 µA sleep current extends battery runtime; 180° sinusoidal drive reduces audible whine below 25 dB(A) at 30 cm. |
Use Scenario: High-reliability cooling for GPU/CPU modules in gaming consoles subject to thermal cycling and dust ingress. IC Role / Device Role / Timing Role: Integrated motor controller with lock detection and AVS protecting against airflow obstruction and sudden load changes. Use Value: Five-lock-detection modes ensure immediate stall response; thermal shutdown at 160°C prevents fan motor burnout during thermal runaway. |
| ASIC/SoC Heat Sink Fan | Industrial Embedded Fan Module |
Use Scenario: Continuous-duty cooling for high-power ASICs in networking switches or AI accelerators with strict MTBF requirements. IC Role / Device Role / Timing Role: Three-phase driver with configurable minimum PWM duty cycle (5%, 10%, 13%, or no limit) to maintain stable low-speed operation. Use Value: OTP-programmed spin-up parameters eliminate firmware tuning; <1.5 Ω RDS(on) ensures >85% efficiency at full load. |
Use Scenario: Fan control in sealed industrial enclosures where maintenance access is limited and failure must be self-diagnosed. IC Role / Device Role / Timing Role: Autonomous motor supervisor using FG/FGS for speed telemetry and FR for field-serviceable direction reversal. Use Value: FG output provides real-time RPM data for predictive maintenance; short-circuit protection (1.8 A) withstands wiring faults without latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar three-phase sensorless BLDC motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV10970PDSNR | Higher 1.2-A output current, extended 1.65–20-V input range, and integrated 3.3-V LDO regulator. | Targets higher-power fans (e.g., server chassis) requiring wider VIN and regulated logic supply. | Select when >500 mA drive or >5.5 V operation is needed; not pin-compatible due to added LDO and different thermal pad layout. |
| MP6532GQ-Z | Monolithic 3-phase driver with 1-A rating, but uses trapezoidal (not sinusoidal) commutation and lacks OTP-configurable spin-up. | Better suited for cost-sensitive, lower-noise-tolerance applications like power supplies or pumps. | Choose for simpler design and lower BOM count where ultra-quiet operation is secondary; requires external current sense for protection. |
Compared with DRV10963PDSNR, DRV10970PDSNR supports higher voltage/current but adds complexity and cost, while MP6532GQ-Z trades acoustic performance and autonomous startup intelligence for integration density and price - making DRV10963PDSNR optimal for compact, low-noise, battery-aware fan systems.
Availability
DRV10963PDSNR is available at Aetrix Electronics and suitable for notebook CPU fans, game station cooling systems, and ASIC heat sink fans requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for DRV10963PDSNR 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, embedded processing, and high-reliability silicon solutions for industrial, automotive, and computing markets.
The DRV10963PDSNR belongs to TI's precision motor driver portfolio, engineered specifically for ultra-quiet, low-power, sensorless BLDC fan control in space-constrained portable and embedded thermal management systems.
FAQ
What is the recommended minimum PCB copper area for the thermal pad of DRV10963PDSNR?
The DRV10963PDSNR thermal pad must be soldered to a minimum 25 mm² exposed copper area on the PCB, connected to a solid internal ground plane via ≥4 thermal vias (0.3 mm diameter, filled or capped). This achieves the specified RθJB of 15.8°C/W and prevents junction temperature exceedance above 125°C under 500 mA load at 5 V.
How does the DRV10963PDSNR determine motor direction during startup?
The DRV10963PDSNR samples the FR pin state at power-on reset and latches it to define initial commutation sequence (U→V→W for FR = high, U→W→V for FR = low). Direction can be changed dynamically after startup by toggling FR, triggering immediate reversal without stopping - confirmed in Section 7.3.3 of the SLAS955A datasheet.
Can the DRV10963PDSNR operate without an external bootstrap capacitor?
Yes. The DRV10963PDSNR uses an internal charge pump to bias high-side MOSFET gates, eliminating the need for external bootstrap components. This simplifies layout and improves reliability in fan modules where board space and component count are tightly constrained - a key advantage over discrete gate-driver solutions.
What is the function of the FGS pin on the DRV10963PDSNR, and how is it used in system design?
The FGS pin on the DRV10963PDSNR selects FG output frequency scaling (1×, 2×, or 3× electrical cycles) for RPM calculation. It is latched at power-up and must be held static during operation. Designers tie FGS to VCC or GND via a pull-up/down resistor to match motor pole-pair count and microcontroller timer resolution - enabling accurate speed telemetry without firmware recalibration.
Does the DRV10963PDSNR support dynamic adjustment of the minimum PWM duty cycle during operation?
No. The minimum PWM duty cycle (13%, 10%, 5%, or no limit) is set once via OTP programming during manufacturing and cannot be modified in-circuit. This ensures deterministic startup behavior and eliminates runtime configuration errors - critical for fan applications where consistent spin-up reliability is mandatory across temperature and voltage ranges.
DRV10963PDSNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-UFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- Brushless DC (BLDC)
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (3)
- Interface:
- PWM
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- Fan Motor Driver
- Current - Output:
- 500mA
- Voltage - Supply:
- 2.1V ~ 5.5V
- Voltage - Load:
- 2.1V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-SON (3x3)
DRV10963PDSNR FAQ
1.How can I place an order for DRV10963PDSNR through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV10963PDSNR 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 DRV10963PDSNR reliable?
The price and inventory of DRV10963PDSNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV10963PDSNR is usually 5 days.
3.What payment methods are accepted for DRV10963PDSNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV10963PDSNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV10963PDSNR?
DRV10963PDSNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV10963PDSNR 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 DRV10963PDSNR?
For technical support, including DRV10963PDSNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV10963PDSNR requirements.
6.How does Aetrix verify that DRV10963PDSNR is sourced from the original manufacturer or authorized distributors?
All DRV10963PDSNR 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 DRV10963PDSNR meets industry standards.
7.What is the process for return or replacement of DRV10963PDSNR?
All DRV10963PDSNR units undergo pre-shipment inspection (PSI). If there is an issue with DRV10963PDSNR, 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 DRV10963PDSNR part is unused and in its original packaging.
Return procedure for DRV10963PDSNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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