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Texas Instruments DRV10963JMDSNT
- Part No.:
- DRV10963JMDSNT
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 10-UFDFN Exposed Pad
- Datasheet:
-
DRV10963JMDSNT.pdf
- Description:
- IC MOTOR DRIVER 2.1V-5.5V 10SON
- Quantity:
- Payment:
- Shipping:
Inventory:904
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Product details
Overview
DRV10963JMDSNT 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 DRV10963JMDSNT datasheet, DRV10963JMDSNT pinout, DRV10963JMDSNT application, or DRV10963JMDSNT equivalent, key selection criteria include its USON-10 thermal package, FG/FGS speed feedback configuration, PWM-based amplitude control, and OTP-configurable spin-up parameters for reliable fan startup under varying inertia and load conditions.
Technical Context
The DRV10963JMDSNT 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 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 lock detection using five independent schemes-including frequency overflow, BEMF abnormality, and open-loop stuck detection-ensuring robust stall recovery in thermally constrained environments.
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 | 500 mA - Sufficient to drive typical 5 V, ≤2 W notebook and ASIC cooling fans. |
| Quiescent Current | 15 µA (typical) in sleep mode - Minimizes standby power in always-on thermal management systems. |
| Total RDS(on) | <1.5 Ω (H+L) - Reduces conduction loss and self-heating at full load, supporting continuous operation in 3×3 mm USON package. |
| PWM Input Frequency | 15 kHz to 100 kHz - Compatible with standard microcontroller PWM peripherals and avoids audible switching noise. |
| FG Output Type | Open-drain speed indicator - Configurable to toggle per 1/2/3 electrical cycles via FGS/FGOPT, enabling precise RPM calculation with known pole pairs. |
| Thermal Resistance | RθJA = 40.9 °C/W - Validated with exposed thermal pad soldered to PCB ground plane for sustained 500 mA output. |
Pinout & Package
DRV10963JMDSNT is housed in a 3.00 mm × 3.00 mm, 10-pin USON (DSN) package with an exposed thermal pad on the bottom, requiring connection to PCB ground for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (FG) | Open-drain motor speed output | Provides logic-level pulse train proportional to motor speed; requires external pullup for proper logic high. |
| 2 (FGS) | Speed indicator selector input | Latched at power-up to configure FG toggle rate (1x/2x/3x electrical cycle); not dynamically changeable. |
| 3 (VCC) | Power supply input | Supplies both control circuitry and integrated power stage; must be decoupled with ≥2.2 µF ceramic capacitor. |
| 4 (W) | Motor phase W output | High-side/low-side driven terminal for three-phase BLDC winding; connects directly to motor W phase. |
| 5 (GND) | Ground reference | Primary analog/digital ground; must be connected to low-impedance PCB ground plane. |
| 6 (V) | Motor phase V output | High-side/low-side driven terminal for three-phase BLDC winding; connects directly to motor V phase. |
| 7 (U) | Motor phase U output | High-side/low-side driven terminal for three-phase BLDC winding; connects directly to motor U phase. |
| 8 (FR) | Forward/reverse direction control | Logic-level input (0 = reverse, 1 = forward); dynamically changeable during operation to reverse fan rotation. |
| 9 (GND) | Secondary ground terminal | Provides additional low-inductance return path for motor current; must be tied to same ground as Pin 5. |
| 10 (PWM) | Speed command input | Analog-dimming compatible PWM input (15–100 kHz); duty cycle maps linearly to output voltage amplitude (Vphpk = VCC × DC). |
Key Features
| Feature | Design Value |
|---|---|
| Sensorless 180° sinusoidal control | Eliminates need for Hall sensors or external position feedback, reducing BOM count and board space in fan modules. |
| Configurable minimum PWM duty cycle | OTP-selectable thresholds (0%, 5%, 10%, 13%) prevent unintended low-speed operation and improve startup reliability. |
| Five-lock-detection schemes | Detects stalled motors via frequency overflow, BEMF abnormality, speed mismatch, open-loop stuck, and closed-loop stuck-enabling safe auto-restart after TOFF_LOCK delay. |
| Anti-Voltage Surge (AVS) | Actively clamps inductive/mechanical energy return during rapid deceleration or tri-state transitions, preventing VCC rail overshoot and protecting upstream regulators. |
| OTP-programmable startup parameters | Handoff threshold (HOffth), align time (TAlign), accelerate rate (RAcc), and current limit (ILIMIT[2:0]) are factory-set for application-specific optimization. |
Applications
| Notebook CPU Fan Control | Game Console Cooling System |
|---|---|
Use Scenario: Thermal regulation of dual-core and 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. Use Value: Delivers <15 µA sleep current and ultra-low acoustic noise (<28 dBA), extending battery life and meeting OEM acoustic specifications. |
Use Scenario: Active cooling of GPU and SoC in compact, sealed game station enclosures with limited airflow. IC Role / Device Role / Timing Role: Integrated three-phase gate driver and power stage managing fan speed via host MCU PWM; FR pin enables dynamic airflow reversal for dust mitigation. Use Value: Enables reliable startup across wide temperature range (−40°C to 125°C) and tolerates voltage surges from rapid fan deceleration in confined thermal zones. |
| ASIC/FPGA Heat Sink Fan | Industrial Embedded Controller Cooling |
Use Scenario: Forced-air cooling of high-power programmable logic devices generating localized hotspots. IC Role / Device Role / Timing Role: Sensorless BLDC driver with FG feedback for closed-loop thermal management; OTP-configured TAlign/RAcc ensures startup under high-inertia heatsink loads. Use Value: Provides soft current limiting (500 mA max) and lock detection to prevent thermal runaway during partial airflow blockage or bearing wear. |
Use Scenario: Continuous-duty cooling in DIN-rail mounted PLCs and edge controllers operating 24/7 in industrial ambient temperatures. IC Role / Device Role / Timing Role: Highly integrated motor driver minimizing external components; thermal shutdown (160°C) and UVLO (2.1 V) ensure fail-safe operation during brownouts or overheating. Use Value: Supports long-term reliability with 150°C max junction rating and RθJB = 15.8 °C/W, enabling stable 500 mA output on standard 2-layer PCBs. |
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 |
|---|---|---|---|
| DRV10970MDSNR | Higher 1-A output current, wider 4.5–24-V input range, and enhanced thermal performance (RθJA = 32.5 °C/W) in same USON-10 package. | Targeted at higher-power 12 V fans and industrial blowers; not drop-in compatible due to different UVLO and OTP programming interface. | Select when >500 mA drive capability or 12 V system integration is required; revalidation of startup timing and current limit settings needed. |
| MP6532DJ-LF-Z | Monolithic 3-phase driver with 600 mA rating, 2.5–28 V input, and integrated bootstrap diodes; lacks FG/FGS configurability and OTP startup tuning. | Designed for cost-sensitive, fixed-parameter fan applications; no lock-detection granularity or AVS implementation. | Choose for simplified design where programmable lock response and ultra-quiet sinusoidal drive are non-critical; verify FG feedback compatibility with host controller. |
Compared with DRV10963JMDSNT, DRV10970MDSNR offers higher current headroom and extended voltage range but requires OTP reconfiguration, while MP6532DJ-LF-Z reduces component count at the expense of sensorless control sophistication and thermal resilience in compact 5 V fan modules.
Availability
DRV10963JMDSNT is available at Aetrix Electronics and suitable for notebook CPU fans, game console cooling systems, ASIC cooling fans, and industrial embedded controller cooling requiring stable component supply and long-lifecycle support.
Supply support for DRV10963JMDSNT 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 company specializing in analog and embedded processing technologies, with leadership in motor control, power management, and signal chain solutions.
The DRV10963JMDSNT belongs to TI's precision BLDC motor driver product line, engineered specifically for ultra-quiet, low-power, sensorless fan control in space-constrained portable and embedded thermal management systems.
FAQ
What is the recommended decoupling capacitance for DRV10963JMDSNT VCC?
A minimum 2.2 µF X7R ceramic capacitor placed within 2 mm of the VCC and GND pins is required for stable operation of DRV10963JMDSNT. This value is specified in the TI SLAS955A datasheet Section 9 and validated for suppression of switching transients from the integrated MOSFET half-bridges. Additional bulk capacitance (e.g., 10 µF tantalum) may be added near the power entry point, but the 2.2 µF local cap is mandatory for DRV10963JMDSNT functional integrity.
Can the DRV10963JMDSNT operate without an external microcontroller?
Yes, DRV10963JMDSNT can operate autonomously using only analog or fixed-frequency PWM input on the PWM pin, with direction set by FR and FG feedback used for system monitoring. No external MCU is required for basic speed/direction control, as all commutation, lock detection, and protection logic are fully integrated. However, OTP configuration (e.g., handoff threshold, align time) must be performed during manufacturing using TI's programming tools-DRV10963JMDSNT does not support runtime register writes.
How does the FG output of DRV10963JMDSNT relate to actual motor RPM?
The FG output of DRV10963JMDSNT toggles at a frequency dependent on motor electrical speed and OTP/FGS configuration: if FGS = 1, RPM = (FREQFG × 60) / pole_pairs; if FGS = 0 and FGOPT = 1, RPM = (FREQFG × 120) / pole_pairs; if FGS = 0 and FGOPT = 0, RPM = (FREQFG × 180) / pole_pairs. This relationship is defined in Section 7.3.4 of the DRV10963JMDSNT datasheet and requires knowledge of the motor's pole-pair count for accurate mechanical speed derivation.
What protection features are implemented in DRV10963JMDSNT?
DRV10963JMDSNT integrates five lock-detection schemes (frequency overflow, BEMF abnormal, speed abnormal, open-loop stuck, closed-loop stuck), undervoltage lockout (UVLO at 2.1 V), thermal shutdown (160°C), short-circuit current protection (1.8 A trip), anti-voltage surge (AVS) clamping, and soft current limiting (configurable up to 875 mA). These protections operate autonomously without external components, ensuring safe recovery from stall, overtemperature, overcurrent, and supply anomaly events in fan applications.
Is DRV10963JMDSNT pin-compatible with other devices in the DRV109xx family?
No, DRV10963JMDSNT is not pin-compatible with other DRV109xx variants such as DRV10970 or DRV10983. While all share the USON-10 package outline, pin functions differ significantly-for example, DRV10970 uses Pin 2 for VREF instead of FGS, and Pin 8 is NC instead of FR. Substitution requires full schematic and layout revision; DRV10963JMDSNT's pin mapping is unique to its sensorless fan control feature set and must be verified against SLAS955A Section 5.
DRV10963JMDSNT 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)
DRV10963JMDSNT FAQ
1.How can I place an order for DRV10963JMDSNT through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV10963JMDSNT 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 DRV10963JMDSNT reliable?
The price and inventory of DRV10963JMDSNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV10963JMDSNT is usually 5 days.
3.What payment methods are accepted for DRV10963JMDSNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV10963JMDSNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV10963JMDSNT?
DRV10963JMDSNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV10963JMDSNT 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 DRV10963JMDSNT?
For technical support, including DRV10963JMDSNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV10963JMDSNT requirements.
6.How does Aetrix verify that DRV10963JMDSNT is sourced from the original manufacturer or authorized distributors?
All DRV10963JMDSNT 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 DRV10963JMDSNT meets industry standards.
7.What is the process for return or replacement of DRV10963JMDSNT?
All DRV10963JMDSNT units undergo pre-shipment inspection (PSI). If there is an issue with DRV10963JMDSNT, 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 DRV10963JMDSNT part is unused and in its original packaging.
Return procedure for DRV10963JMDSNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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