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Texas Instruments DRV10963JADSNT
- Part No.:
- DRV10963JADSNT
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 10-UFDFN Exposed Pad
- Datasheet:
-
DRV10963JADSNT.pdf
- Description:
- IC MOTOR DRIVER 2.1V-5.5V 10SON
- Quantity:
- Payment:
- Shipping:
Inventory:738
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Product details
Overview
DRV10963JADSNT 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 DRV10963JADSNT datasheet, DRV10963JADSNT pinout, DRV10963JADSNT application, or DRV10963JADSNT equivalent, key selection considerations include its USON-10 thermal package, FG/FGS speed feedback configuration, PWM-based amplitude control, and integrated protection against lock, short circuit, UVLO, and thermal overload.
Technical Context
The DRV10963JADSNT implements a proprietary sensorless, window-less 180° sinusoidal commutation scheme that eliminates torque ripple and enables silent operation in low-inertia fans. Its closed-loop control uses back-EMF zero-crossing detection without Hall sensors or external rotor position feedback.
Motor startup follows a configurable open-loop alignment and acceleration phase before transitioning to closed-loop mode at a user-defined handoff frequency (12.5–187.5 Hz). Direction is controlled dynamically via the FR pin, and speed is set by a 9-bit PWM input (15–100 kHz) with adjustable minimum duty cycle (0%, 5%, 10%, or 13%).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.1 V to 5.5 V - supports single-cell Li-ion or regulated 3.3 V/5 V rails without external LDO. |
| Output Current | 500 mA - sufficient for notebook and game station CPU cooling fans up to ~3 W mechanical output. |
| Total RDS(on) | <1.5 Ω (H+L) - minimizes conduction loss and self-heating in thermally constrained fan modules. |
| Sleep Current | 15 µA typical - enables ultra-low-power standby in always-on thermal management systems. |
| PWM Frequency Range | 15 kHz to 100 kHz - avoids audible noise while enabling high-resolution speed control (0.2% resolution). |
| Lock Detect Time | 300 ms - fast stall response prevents coil overheating and ensures fan reliability under blocked-rotor conditions. |
| Thermal Shutdown | 160 °C with 10 °C hysteresis - protects internal MOSFETs during sustained overloads or poor heatsinking. |
Pinout & Package
The DRV10963JADSNT 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 depending on FGS/FGOPT OTP setting. |
| 2 (FGS) | Speed indicator selector input | Latched at power-up; selects FG toggle ratio (1×, 2×, or 3× electrical cycles) for RPM calculation. |
| 3 (VCC) | Power supply input | Supplies both logic and integrated MOSFETs; requires local 2.2 µF ceramic decoupling. |
| 4 (W) | Motor phase W output | High-side/low-side driven terminal for three-phase BLDC winding connection. |
| 5 (GND) | Ground reference | Primary signal ground; must be connected to thermal pad for optimal thermal performance. |
| 6 (V) | Motor phase V output | Second motor phase terminal; shares same drive architecture and protection as U/W pins. |
| 7 (U) | Motor phase U output | Third motor phase terminal; completes full three-phase bridge configuration. |
| 8 (FR) | Forward/reverse direction control | Dynamic logic-level input (0/1) sets commutation sequence (U→V→W or U→W→V). |
| 9 (GND) | Secondary ground terminal | Dedicated ground return path; improves noise immunity and current loop integrity. |
| 10 (PWM) | Speed command input | Analog-compatible PWM input (0–100%) controlling output voltage amplitude via 9-bit digital scaling. |
Key Features
| Feature | Design Value |
|---|---|
| Proprietary sensorless 180° sinusoidal control | Eliminates audible commutation noise and torque ripple in fan applications without position sensors. |
| Configurable open-loop to closed-loop handoff | 16 selectable handoff frequencies (12.5–187.5 Hz) enable reliable startup across diverse fan inertias. |
| Intelligent multi-scheme lock detection | Five independent lock algorithms (e.g., BEMF abnormal, frequency overflow, speed abnormal) prevent thermal runaway. |
| Anti-Voltage Surge (AVS) protection | Actively clamps inductive/mechanical energy return to VCC, preventing supply rail overshoot and component stress. |
| Soft current limiting | OTP-configurable limit (0–875 mA) using Kt/Rm estimation-avoids hard shutdown during transient overloads. |
| OTP-programmable startup parameters | Align time (40–600 ms), accelerate rate (10–150 Hz/s), and minimum PWM duty cycle (0%/5%/10%/13%) tailored per motor. |
Applications
| Notebook CPU Fan Control | Game Station Cooling System |
|---|---|
Use Scenario: Thermal regulation of high-performance mobile CPUs under variable workloads. IC Role / Device Role / Timing Role: Sensorless motor driver executing closed-loop sinusoidal commutation with real-time speed adjustment via PWM. Use Value: Enables silent, responsive fan speed control down to 15 µA sleep current-extending battery life without acoustic compromise. |
Use Scenario: Active cooling of ASICs and GPUs in compact gaming consoles with strict EMI and noise budgets. IC Role / Device Role / Timing Role: Integrated three-phase driver managing dual-fan arrays with synchronized direction (FR) and independent speed (PWM) inputs. Use Value: Delivers <1.5 Ω RDS(on) and AVS protection to sustain fan operation during rapid thermal transients and voltage surges. |
| ASIC Thermal Management Module | Embedded Industrial Fan Controller |
Use Scenario: Continuous cooling of high-power ASICs in network switches or AI accelerators operating 24/7. IC Role / Device Role / Timing Role: Fault-resilient motor controller with lock detection, thermal shutdown, and short-circuit protection. Use Value: Prevents system failure via automatic restart after TOFF_LOCK (5 s) following stall events-ensuring uptime without host intervention. |
Use Scenario: Fan control in sealed industrial enclosures where maintenance access is limited and reliability is critical. IC Role / Device Role / Timing Role: Standalone motor driver with FG speed feedback and OTP-configured startup parameters for field-deployed units. Use Value: Supports long-term stability via 125 °C max junction temperature rating and robust 3 kV HBM ESD tolerance. |
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 4.5–28 V input range; QFN-16 package; no integrated AVS. | Better suited for higher-power 12 V fans; lacks AVS and fine-grained OTP configurability of DRV10963JADSNT. | Select when driving larger fans (>5 W) requiring >500 mA and higher supply voltage. |
| MP6532DJ-LF-Z | 2.7–18 V input; 1.5 A output; integrated current sense; no OTP programming; smaller 3×3 mm QFN-12. | Offers real-time current monitoring but omits lock detection schemes and FG feedback flexibility of DRV10963JADSNT. | Prefer when analog current feedback is required and startup parameter tuning is not needed. |
Compared with DRV10970DSCR and MP6532DJ-LF-Z, the DRV10963JADSNT uniquely balances ultra-low-noise sinusoidal drive, comprehensive lock protection, and OTP-tunable startup behavior in a compact USON-10 package-making it optimal for space-constrained, acoustically sensitive 5 V fan systems.
Availability
DRV10963JADSNT is available at Aetrix Electronics and suitable for notebook CPU fans, game station cooling systems, and ASIC thermal management modules requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for DRV10963JADSNT 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 power management technologies, with decades of expertise in motor control ICs and high-reliability analog design.
The DRV10963JADSNT belongs to TI's precision BLDC driver product line, engineered specifically for ultra-quiet, low-power, sensorless fan control in portable and thermally demanding computing platforms.
FAQ
What is the recommended decoupling capacitor for DRV10963JADSNT VCC?
A 2.2 µF X5R/X7R ceramic capacitor placed as close as possible to the VCC pin (Pin 3) and GND (Pin 5) is required per the datasheet. This value ensures stable operation during PWM-driven phase switching and suppresses high-frequency noise generated by the integrated MOSFETs. The DRV10963JADSNT datasheet specifies this value explicitly in the Simplified Schematic and Layout Guidelines sections.
Does DRV10963JADSNT support dynamic direction reversal during operation?
Yes, DRV10963JADSNT supports real-time direction reversal via the FR pin (Pin 8), which accepts logic-level inputs to switch between U→V→W and U→W→V commutation sequences. The transition occurs without reset or reinitialization, and the device maintains closed-loop control throughout-enabling bidirectional fan control in thermal management systems requiring airflow reversal.
How is motor speed calculated from the FG output of DRV10963JADSNT?
Motor speed (RPM) is derived from FG frequency using the formula: RPM = (FREQFG × 60 × N) / P, where N is 1, 2, or 3 depending on FGS/FGOPT configuration (per Table 6), and P is the number of pole pairs in the motor. For example, with FGS = 1 and a 4-pole motor, each FG toggle corresponds to one electrical cycle, so RPM = (FREQFG × 60) / 2. This calculation is directly supported by the DRV10963JADSNT's OTP-configurable FG output modes.
What protection features are integrated into DRV10963JADSNT?
DRV10963JADSNT integrates five core protections: (1) Undervoltage lockout (UVLO) at 2.1 V, (2) Thermal shutdown at 160 °C with 10 °C hysteresis, (3) Short-circuit current protection triggering at 1.8 A, (4) Intelligent multi-scheme lock detection (e.g., BEMF abnormal, frequency overflow), and (5) Anti-Voltage Surge (AVS) to clamp inductive/mechanical energy return to VCC. All are implemented in hardware without host firmware dependency.
Can DRV10963JADSNT drive motors with different pole counts?
Yes, DRV10963JADSNT is pole-count agnostic-it senses back-EMF zero crossings regardless of motor pole configuration. Speed feedback via FG is scalable using the FGS/FGOPT settings to accommodate 2-, 4-, 6-, or 8-pole motors. Startup parameters (handoff threshold, align time) are OTP-configurable to match inertia and electrical characteristics across diverse BLDC fan designs.
DRV10963JADSNT 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)
DRV10963JADSNT FAQ
1.How can I place an order for DRV10963JADSNT through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV10963JADSNT 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 DRV10963JADSNT reliable?
The price and inventory of DRV10963JADSNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV10963JADSNT is usually 5 days.
3.What payment methods are accepted for DRV10963JADSNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV10963JADSNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV10963JADSNT?
DRV10963JADSNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV10963JADSNT 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 DRV10963JADSNT?
For technical support, including DRV10963JADSNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV10963JADSNT requirements.
6.How does Aetrix verify that DRV10963JADSNT is sourced from the original manufacturer or authorized distributors?
All DRV10963JADSNT 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 DRV10963JADSNT meets industry standards.
7.What is the process for return or replacement of DRV10963JADSNT?
All DRV10963JADSNT units undergo pre-shipment inspection (PSI). If there is an issue with DRV10963JADSNT, 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 DRV10963JADSNT part is unused and in its original packaging.
Return procedure for DRV10963JADSNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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