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Texas Instruments DRV10963DSNR
- Part No.:
- DRV10963DSNR
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 10-UFDFN Exposed Pad
- Datasheet:
-
DRV10963DSNR.pdf
- Description:
- IC MOTOR DRIVER 2.1V-5.5V 10SON
- Quantity:
- Payment:
- Shipping:
Inventory:2,437
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Product details
Overview
DRV10963DSNR 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 includes intelligent lock detection and anti-voltage surge (AVS) protection.
For engineers reviewing the DRV10963DSNR datasheet, DRV10963DSNR pinout, DRV10963DSNR application, or DRV10963DSNR 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 motor start-up in compact cooling systems.
Technical Context
The DRV10963DSNR implements a proprietary sensorless, window-less 180° sinusoidal commutation algorithm that eliminates torque ripple and enables silent operation. Its closed-loop control uses back-EMF zero-crossing detection without Hall sensors or external position feedback.
It integrates six N-channel power MOSFETs with total H+L RDS(on) < 1.5 Ω, supports dynamic direction reversal via FR pin, and provides configurable FG output toggling (1×, 2×, or 3× per electrical cycle) based on FGS state and OTP setting FGOPT. Lock detection employs five independent schemes including frequency overflow, BEMF abnormality, and open-loop stuck detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.1 V to 5.5 V - Enables direct integration with 3.3 V or 5 V system rails without LDO overhead. |
| Output Current Capability | 500 mA continuous - Sufficient to drive small-form-factor axial fans (e.g., 40 mm–60 mm notebook CPU fans). |
| Total RDS(on) | <1.5 Ω (H+L) - Minimizes conduction loss and self-heating during sustained PWM operation. |
| Sleep Current | 15 µA typical - Supports low-power standby modes in battery-sensitive or always-on thermal management systems. |
| PWM Input Frequency | 15 kHz to 100 kHz - Compatible with standard microcontroller PWM peripherals and avoids audible noise bands. |
| Thermal Shutdown Threshold | 160°C with 10°C hysteresis - Protects against sustained overload or poor PCB thermal design while allowing safe transient peaks. |
| FG Output Type | Open-drain - Allows flexible pull-up to VCC or other logic rail; supports speed monitoring via MCU GPIO or counter peripheral. |
Pinout & Package
DRV10963DSNR is housed in a thermally efficient 10-pin USON (3.00 mm × 3.00 mm) package with an exposed thermal pad soldered to PCB ground for optimal heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - FG | Motor speed indicator output | Open-drain output toggling per configured electrical cycle count; used for RPM feedback and closed-loop speed verification. |
| 2 - FGS | FG selector input | Latched at power-up; selects FG toggle rate (1×, 2×, or 3× per electrical cycle) - must be set before initialization. |
| 3 - VCC | Power supply input | Single-supply input for both logic and power stages; accepts 2.1–5.5 V; requires local 2.2 µF decoupling. |
| 4 - W | Motor phase W terminal | High-side/low-side switched node for three-phase bridge; connects directly to motor winding W. |
| 5 - GND | Ground reference | Primary analog/digital ground; must be connected to low-impedance PCB ground plane near thermal pad. |
| 6 - V | Motor phase V terminal | High-side/low-side switched node for three-phase bridge; connects directly to motor winding V. |
| 7 - U | Motor phase U terminal | High-side/low-side switched node for three-phase bridge; connects directly to motor winding U. |
| 8 - FR | Forward/reverse control input | Logic-level input (0 V / VCC) dynamically selecting commutation sequence (U→V→W or U→W→V). |
| 9 - GND | Ground reference | Second ground connection; improves current return path symmetry and reduces EMI in high-dI/dt switching. |
| 10 - PWM | Speed command input | Analog-compatible PWM input (0–100% duty); maps linearly to output voltage amplitude (Vphpk = PWMdc × VCC). |
Key Features
| Feature | Design Value |
|---|---|
| Proprietary sensorless 180° sinusoidal control | Eliminates torque ripple and acoustic noise - critical for quiet CPU fan operation in consumer notebooks and game stations. |
| Configurable minimum PWM duty cycle (OTP) | Supports 0%, 5%, 10%, or 13% lower limit - prevents unintended motor stall at low speeds and enables precise idle-speed tuning. |
| Five-lock-detection schemes | Detects stalled rotor under diverse conditions (frequency overflow, BEMF abnormality, speed mismatch, open-loop stuck, closed-loop stuck) - ensures robust fault recovery without external supervision. |
| Anti-Voltage Surge (AVS) protection | Prevents VCC rail overvoltage during deceleration or tri-state events by redirecting inductive/mechanical energy to ground - protects upstream regulators and adjacent ICs. |
| OTP-programmable spin-up parameters | Enables field-tuned alignment time (40–600 ms), accelerate rate (10–150 Hz/s), and handoff threshold (12.5–187.5 Hz) - optimizes start reliability across motor families without firmware changes. |
Applications
| Notebook CPU Fan Control | Game Station Cooling System |
|---|---|
|
Use Scenario: Thermal regulation of dual-core or quad-core mobile CPUs under variable workloads. IC Role / Device Role / Timing Role: Primary motor driver executing sensorless sinusoidal commutation; receives PWM speed commands from EC or PMIC and reports RPM via FG. Use Value: Delivers <15 dB(A) acoustic noise at full speed and maintains stable airflow down to 1,200 RPM using configurable minimum duty cycle and soft current limiting. |
Use Scenario: Active cooling of ASICs and GPU modules in compact gaming consoles with strict EMI limits. IC Role / Device Role / Timing Role: Integrated gate driver and power stage managing three-phase BLDC fan; FR pin enables dynamic airflow reversal for dust mitigation. Use Value: Achieves >85% efficiency at 5 V/300 mA and suppresses conducted EMI via sinusoidal phase voltages - simplifies EMC filter design. |
| ASIC Thermal Management Module | Embedded Industrial Fan Controller |
|
Use Scenario: Continuous cooling of high-power FPGA or AI accelerator packages in edge servers. IC Role / Device Role / Timing Role: Standalone motor controller interfacing with host MCU via PWM/FR/FG; performs autonomous lock recovery and thermal foldback. Use Value: Provides fault logging via FG pulse pattern anomalies and sustains operation up to 125°C ambient using thermal shutdown with hysteresis. |
Use Scenario: Fan speed control in DIN-rail mounted PLCs or industrial gateways requiring long-term reliability. IC Role / Device Role / Timing Role: Motor interface IC handling commutation, protection, and diagnostics - replaces discrete MOSFET + controller solutions. Use Value: Reduces BOM count by 12 components vs. discrete implementation and supports 10-year lifecycle with TI's industrial-grade qualification. |
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 |
|---|---|---|---|
| DRV10970DSCR | Higher 1.2 A output current; wider 4.5–24 V supply range; same USON-10 package and pinout. | Targeted at larger 80 mm fans or higher-voltage industrial blowers - not drop-in for 5 V-only designs. | Select when >500 mA drive or >5.5 V operation is required; retains identical control architecture and OTP programming flow. |
| MP6532GQ-Z | 2.5 A output; 4.5–28 V input; integrated current sense; different pinout and no FG/FGS configuration flexibility. | Designed for higher-power server fans; lacks configurable minimum PWM duty cycle and multi-scheme lock detection. | Choose for cost-sensitive, high-current applications where TI's advanced diagnostics and ultra-low-noise control are not mandatory. |
Compared with DRV10963DSNR, DRV10970DSCR offers higher drive capability and voltage range but requires board rework for 5 V systems, while MP6532GQ-Z trades diagnostic sophistication for raw current output - making DRV10963DSNR optimal for noise-critical, space-constrained 5 V fan control where reliability and silent operation are prioritized.
Availability
DRV10963DSNR is available at Aetrix Electronics and suitable for notebook CPU fan control, game station thermal management, and ASIC cooling applications requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for DRV10963DSNR 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 DRV10963DSNR belongs to TI's precision motor driver product line, engineered specifically for ultra-quiet, low-component-count BLDC fan control in portable and embedded thermal systems - emphasizing acoustic performance, autonomous fault handling, and seamless integration with host EC or MCU subsystems.
FAQ
What is the recommended decoupling capacitor for DRV10963DSNR?
A 2.2 µF ceramic capacitor placed as close as possible to the VCC pin (Pin 3) and GND pins (Pins 5 and 9) is required per the datasheet. This minimizes high-frequency switching noise and stabilizes the internal regulator during PWM transitions. The DRV10963DSNR's low quiescent current and fast transient response make proper decoupling essential for reliable lock detection and smooth sinusoidal commutation - especially during startup and direction reversal events.
Can DRV10963DSNR drive a motor with more than 3 pole pairs?
Yes, DRV10963DSNR supports motors with any number of pole pairs. The FG output frequency relates to electrical cycles, so mechanical RPM is calculated as RPM = (FREQFG × 60 × N) / P, where P is pole pairs and N is 1, 2, or 3 depending on FGS/FGOPT configuration. The DRV10963DSNR's sensorless algorithm adapts automatically - no firmware or hardware changes are needed when swapping motors with different pole counts, provided voltage, current, and inertia remain within spec.
How does the soft current limit in DRV10963DSNR differ from short-circuit protection?
The soft current limit in DRV10963DSNR (configurable from 125 mA to 875 mA via OTP) actively modulates output voltage during normal closed-loop operation to prevent excessive phase current under heavy load - without halting motor rotation. In contrast, short-circuit protection triggers immediate high-impedance shutdown if any phase exceeds 1.8 A, followed by automatic restart after fault removal. Both functions coexist: soft limit handles sustained overload; short-circuit protection handles catastrophic faults - ensuring DRV10963DSNR remains operational in real-world thermal management scenarios.
Is DRV10963DSNR compatible with 3.3 V microcontrollers for PWM and FR signals?
Yes, DRV10963DSNR accepts 3.3 V logic levels on PWM (Pin 10) and FR (Pin 8): VIH is 2.3 V min and VIL is 0.8 V max, fully compatible with standard 3.3 V CMOS outputs. No level-shifting is required. The internal pull-up resistors (50 kΩ active mode, 2 MΩ standby) ensure robust signal integrity even with long traces. This allows direct interfacing with common ARM Cortex-M or dedicated EC controllers - simplifying design and reducing bill-of-materials for DRV10963DSNR-based fan modules.
What happens when the motor fails to start and enters lock detection?
When DRV10963DSNR detects a lock condition - via any of its five schemes - it places all phase outputs (U/V/W) into high-impedance state, activates Anti-Voltage Surge (AVS) to shunt inductive energy to ground, and waits TOFF_LOCK (5 s default) before attempting automatic restart. During this period, FG output halts, confirming fault to host system. The DRV10963DSNR repeats this cycle up to three times before entering permanent sleep mode unless reset via PWM pin reassertion - providing fail-safe behavior without external watchdog intervention.
DRV10963DSNR 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)
DRV10963DSNR FAQ
1.How can I place an order for DRV10963DSNR through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV10963DSNR 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 DRV10963DSNR reliable?
The price and inventory of DRV10963DSNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV10963DSNR is usually 5 days.
3.What payment methods are accepted for DRV10963DSNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV10963DSNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV10963DSNR?
DRV10963DSNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV10963DSNR 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 DRV10963DSNR?
For technical support, including DRV10963DSNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV10963DSNR requirements.
6.How does Aetrix verify that DRV10963DSNR is sourced from the original manufacturer or authorized distributors?
All DRV10963DSNR 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 DRV10963DSNR meets industry standards.
7.What is the process for return or replacement of DRV10963DSNR?
All DRV10963DSNR units undergo pre-shipment inspection (PSI). If there is an issue with DRV10963DSNR, 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 DRV10963DSNR part is unused and in its original packaging.
Return procedure for DRV10963DSNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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