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Texas Instruments DRV10963JADSNR
- Part No.:
- DRV10963JADSNR
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 10-UFDFN Exposed Pad
- Datasheet:
-
DRV10963JADSNR.pdf
- Description:
- IC MOTOR DRIVER 2.1V-5.5V 10SON
- Quantity:
- Payment:
- Shipping:
Inventory:4,928
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Product details
Overview
DRV10963JADSNR from Texas Instruments is a three-phase, sensorless BLDC motor driver IC with integrated power MOSFETs, designed for ultra-quiet CPU cooling 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 DRV10963JADSNR datasheet, DRV10963JADSNR pinout, DRV10963JADSNR application, or DRV10963JADSNR equivalent, key selection criteria include its USON-10 package thermal performance, FG/FGS speed feedback configuration, PWM-based amplitude control resolution (0.2%), and integrated protection against lock, short circuit, UVLO, and thermal overload.
Technical Context
The DRV10963JADSNR implements a proprietary sensorless, window-less 180° sinusoidal commutation algorithm that minimizes torque ripple and acoustic noise. Its closed-loop operation relies on 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 spin-up parameters (align time, accelerate rate, handoff threshold) via OTP settings. Lock detection uses five independent schemes-including frequency overflow, BEMF abnormality, and speed abnormality-to ensure robust stall recovery.
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 for mid-power notebook and game station CPU fans (≤3 W). |
| Total RDS(on) | <1.5 Ω (H+L) - Minimizes conduction loss and self-heating in compact USON-10 thermal pad package. |
| Quiescent Current | 15 µA typical in sleep mode - Extends battery life in portable fan systems during idle periods. |
| PWM Input Frequency | 15 kHz to 100 kHz - Compatible with standard MCU PWM peripherals and avoids audible switching noise. |
| FG Output Configuration | Configurable toggle per 1/2/3 electrical cycles - Enables precise RPM calculation across diverse pole-pair motors. |
| Thermal Resistance | RθJC(bot) = 2.9 °C/W - High-efficiency heat transfer to PCB ground plane via exposed thermal pad. |
Pinout & Package
DRV10963JADSNR is housed in a 3.00 mm × 3.00 mm, 10-pin USON (DSN) package with an exposed thermal pad on the bottom for enhanced thermal dissipation. The package is RoHS-compliant and optimized for high-density fan control layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (FG) | Open-drain speed indicator output | Provides motor speed feedback; requires external pull-up; short-circuit protected (ISC_FG = 13–25 mA). |
| 2 (FGS) | Speed indicator selector input | Latched at power-up; selects FG toggle frequency (1×, 2×, or 3× electrical cycles) for RPM scaling. |
| 3 (VCC) | Power supply input | Supplies both logic and motor drive stages; supports UVLO thresholds of 2.1 V (rising) and 1.8 V (falling). |
| 4 (W) | Motor phase W output | High-side/low-side driven terminal for three-phase BLDC winding; rated for −0.1 V to 7 V. |
| 5 (GND) | Ground reference | Primary signal and power return; connects to thermal pad for optimal thermal performance. |
| 6 (V) | Motor phase V output | Phase output with identical voltage/current ratings and drive capability as U and W pins. |
| 7 (U) | Motor phase U output | Third motor phase terminal; commutated in sinusoidal sequence determined by FR and internal algorithm. |
| 8 (FR) | Forward/reverse direction control | Logic-level input (VIH = 2.3 V); dynamically switchable to reverse commutation order (U→V→W ↔ U→W→V). |
| 9 (GND) | Secondary ground terminal | Reduces ground loop impedance; improves noise immunity and current return path integrity. |
| 10 (PWM) | Speed command input | Analog-compatible PWM input (15–100 kHz); 9-bit resolution (0.2% duty step); controls output amplitude as Vphpk = PWMdc × VCC. |
Key Features
| Feature | Design Value |
|---|---|
| Sensorless 180° sinusoidal control | Eliminates need for Hall sensors or encoder feedback while achieving ultra-low acoustic noise in fan applications. |
| Intelligent multi-scheme lock detection | Five independent lock triggers (e.g., frequency overflow, BEMF abnormality, open-loop stuck) enable reliable stall recovery without false trips. |
| Anti-Voltage Surge (AVS) protection | Prevents VCC rail overvoltage during deceleration or tri-state transitions by redirecting inductive/mechanical energy to GND instead of VCC. |
| Configurable soft current limit | OTP-selectable ILIMIT (0–875 mA in 125 mA steps) limits phase voltage using Kt and Rm models-no sense resistor required. |
| OTP-programmable startup profile | Adjustable align time (40–600 ms), accelerate rate (10–150 Hz/s), and handoff threshold (12.5–187.5 Hz) optimize spin-up for diverse fan loads. |
Applications
| Notebook CPU Fan Control | Game Station Cooling System |
|---|---|
Use Scenario: Thermal management of high-performance mobile CPUs under variable workload conditions. IC Role / Device Role / Timing Role: Primary motor driver executing sensorless sinusoidal commutation; receives PWM speed commands from EC or PMIC. Use Value: Delivers silent operation (<25 dB(A)) and rapid response to thermal events via configurable TAlign and RAcc parameters. |
Use Scenario: Active cooling of ASICs and GPUs in compact gaming consoles with strict EMI and acoustic budgets. IC Role / Device Role / Timing Role: Integrated gate driver and controller managing three-phase fan motor; direction reversal enabled via FR pin for airflow optimization. Use Value: Reduces bill-of-materials by eliminating external MOSFETs and current-sense components while maintaining 500 mA drive capability. |
| ASIC/FPGA Heat Sink Fan | Industrial Embedded Fan Module |
Use Scenario: Continuous-duty forced-air cooling for programmable logic devices generating localized hotspots. IC Role / Device Role / Timing Role: Standalone motor controller interfacing with host microcontroller via PWM and FG feedback; supports 2.1–5.5 V supply range. Use Value: Ensures reliability under thermal stress via integrated thermal shutdown (160 °C) and UVLO hysteresis (100–300 mV). |
Use Scenario: Fan control in sealed industrial enclosures where maintenance access is limited and long-term stability is critical. IC Role / Device Role / Timing Role: Fault-resilient driver with lock detection, short-circuit protection, and AVS-minimizing risk of cascading failure in unattended systems. Use Value: Enables >10-year field life through robust protection architecture and low 15 µA sleep current. |
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 voltage range (4.5–24 V), 1.5 A output, larger HTSSOP-16 package; no integrated AVS or multi-scheme lock detect. | Targeted at higher-power industrial blowers and pumps-not optimized for low-noise CPU fan use cases. | Select when driving >1 W loads or requiring wider input voltage margin; not drop-in compatible due to pinout and feature set differences. |
| MP6532DJ-LF-Z | 2.5–18 V operation, 1.2 A output, 16-pin QFN; lacks OTP-configurable spin-up, FG/FGS flexibility, and AVS circuitry. | Suited for cost-sensitive consumer appliances but lacks the precision speed feedback and quiet operation tuning of DRV10963JADSNR. | Consider for non-acoustically sensitive applications where higher current and simpler configuration are prioritized over fan-specific optimizations. |
Compared with DRV10970DSCR and MP6532DJ-LF-Z, the DRV10963JADSNR uniquely balances ultra-low noise, compact USON-10 footprint, OTP-tunable startup behavior, and comprehensive protection-making it the preferred choice for space-constrained, acoustically demanding CPU fan designs.
Availability
DRV10963JADSNR 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 DRV10963JADSNR 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 IC design and high-volume manufacturing reliability.
The DRV10963JADSNR belongs to TI's precision BLDC motor driver product line, engineered specifically for ultra-quiet, low-component-count cooling solutions in portable and compact computing platforms.
FAQ
What is the recommended minimum PCB copper area for the thermal pad of DRV10963JADSNR?
The DRV10963JADSNR thermal pad must be soldered to a minimum 30 mm² exposed copper area on the PCB, connected to a solid ground plane with ≥4 thermal vias (0.3 mm diameter, filled or plated) to achieve the specified RθJB = 15.8 °C/W. Insufficient copper or via count will cause junction temperature to exceed 125 °C under 500 mA load, triggering thermal shutdown.
Can DRV10963JADSNR drive a 4-pole-pair BLDC fan motor, and how is RPM calculated from the FG signal?
Yes, DRV10963JADSNR supports any pole-pair count. For a 4-pole-pair motor with FGS = 0 and FGOPT = 1, the FG pin toggles once every 2 electrical cycles, so mechanical RPM = (FREQFG × 120) / 4 = FREQFG × 30. This calculation is valid only when the motor is in closed-loop operation and BEMF is stable.
Does DRV10963JADSNR require external bootstrap capacitors for high-side gate drive?
No, DRV10963JADSNR does not require external bootstrap capacitors. It uses an internal charge pump to generate gate drive voltage for the high-side MOSFETs, enabling full 100% duty cycle operation and simplifying layout-critical for space-constrained fan modules where board area is at a premium.
How does the soft current limit in DRV10963JADSNR differ from traditional overcurrent protection?
The soft current limit in DRV10963JADSNR is predictive and model-based-it calculates allowable phase voltage using real-time Kt and Rm values rather than measuring current directly. Unlike hard-shutdown overcurrent protection, it reduces output amplitude gradually to maintain rotation during transient overload, preventing abrupt stalls in fan applications.
Is the FR pin on DRV10963JADSNR debounced internally, and what is its voltage threshold?
DRV10963JADSNR does not include internal hardware debouncing on the FR pin; external RC filtering is recommended for noisy environments. Its input thresholds are VIH_FR = 2.3 V (minimum) and VIL_FR = 0.8 V (maximum), with an internal 500 kΩ pullup resistor-ensuring compatibility with standard 3.3 V GPIO without level shifting.
DRV10963JADSNR 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)
DRV10963JADSNR FAQ
1.How can I place an order for DRV10963JADSNR through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV10963JADSNR 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 DRV10963JADSNR reliable?
The price and inventory of DRV10963JADSNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV10963JADSNR is usually 5 days.
3.What payment methods are accepted for DRV10963JADSNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV10963JADSNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV10963JADSNR?
DRV10963JADSNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV10963JADSNR 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 DRV10963JADSNR?
For technical support, including DRV10963JADSNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV10963JADSNR requirements.
6.How does Aetrix verify that DRV10963JADSNR is sourced from the original manufacturer or authorized distributors?
All DRV10963JADSNR 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 DRV10963JADSNR meets industry standards.
7.What is the process for return or replacement of DRV10963JADSNR?
All DRV10963JADSNR units undergo pre-shipment inspection (PSI). If there is an issue with DRV10963JADSNR, 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 DRV10963JADSNR part is unused and in its original packaging.
Return procedure for DRV10963JADSNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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