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Texas Instruments DRV10975PWPR
- Part No.:
- DRV10975PWPR
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 24-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DRV10975PWPR.pdf
- Description:
- IC MOTOR DRVR 6.5V-18V 24HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:853
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Product details
Overview
DRV10975PWPR from Texas Instruments is a three-phase, sensorless BLDC motor driver IC with integrated power MOSFETs, 6.5–18 V input range, 1.5-A continuous winding current capability, and proprietary BEMF-based 180° sinusoidal commutation-designed for ultra-quiet appliance fan and HVAC blower applications.
For engineers reviewing the DRV10975PWPR datasheet, DRV10975PWPR pinout, DRV10975PWPR application, or DRV10975PWPR equivalent, key selection considerations include its HTSSOP-24 package with exposed thermal pad, I²C + analog/PWM speed interface, integrated 3.3/5-V step-down regulator, and sleep-mode current of 80 µA (DRV10975Z variant) versus standby-mode 4.5 mA (DRV10975).
Technical Context
The DRV10975PWPR implements a proprietary sensorless back-EMF estimation algorithm to enable continuous sinusoidal 180° commutation without Hall sensors or external current sense resistors. Its control loop dynamically measures phase currents and VCC voltage for real-time BEMF tracking and fault diagnostics accessible via I²C registers.
It integrates a configurable hysteretic buck regulator (selectable 3.3 V or 5 V output, up to 100 mA), dual LDOs (V3P3 at 3.3 V/5 mA max, V1P8 at 1.8 V), and protection circuitry including UVLO (5.2–6.5 V threshold), overcurrent detection (2–4 A trip), lock detection (0.3 s enter / 5 s release), and thermal shutdown (150 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 6.5 V to 18 V - supports 12-V nominal systems with wide supply tolerance for automotive and industrial bus variations. |
| Continuous Output Current | 1.5 A winding current - sufficient for mid-power fans and blowers without external heatsinking under typical thermal conditions. |
| Total H+L rDS(on) | 250 mΩ typical - minimizes conduction loss and self-heating in integrated MOSFET half-bridges. |
| Control Interface | I²C + dedicated SPEED (analog/PWM) and DIR pins - enables flexible system integration with or without microcontroller coordination. |
| Regulator Output | Selectable 3.3 V or 5 V at up to 100 mA - powers internal logic and external MCU without secondary DC/DC stage. |
| Protection Features | UVLO, overcurrent, rotor lock, thermal shutdown, voltage surge - ensures robust operation in unattended equipment like HVAC units. |
| Operating Temperature | –40 °C to 125 °C junction - qualified for demanding ambient environments in enclosed appliances and industrial enclosures. |
Pinout & Package
DRV10975PWPR is housed in a thermally enhanced 24-pin HTSSOP (PWP) package (7.80 mm × 6.40 mm) with exposed thermal pad requiring solder connection to PCB ground plane for thermal management and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCP | Charge pump output | Drives high-side gate drivers; requires external 0.1-µF ceramic capacitor to CPP/CPN for bootstrap operation. |
| CPP, CPN | Charge pump terminals | Form charge pump network with VCP; must be decoupled with 0.1-µF ceramic capacitors between CPP and CPN. |
| SW, SWGND | Step-down regulator switching node and ground | Connect to external 47-µH inductor and 10-µF output capacitor for buck conversion; SWGND is dedicated regulator return. |
| VREG | Buck regulator feedback/output | Regulator output node; connects to inductor/capacitor network and provides feedback for regulation; supports linear mode with resistor substitution. |
| V1P8, V3P3 | Internal LDO outputs | V1P8 = 1.8-V digital core supply (not for external loads); V3P3 = 3.3-V supply (up to 5 mA external load). |
| GND, PGND | Digital/analog and power ground | GND = signal reference; PGND = high-current motor and regulator return; both must connect to common ground plane with low-inductance paths. |
| SCL, SDA | I²C interface | Standard open-drain I²C bus (3.3-V tolerant); supports register read/write and EEPROM programming for motor tuning. |
| FG | Tachometer output | Open-drain frequency generator output synchronized to motor commutation; provides real-time speed feedback without external circuitry. |
| SPEED | Speed command input | Accepts 0–3.3 V analog voltage or 1–100 kHz PWM signal; internal 55-kΩ pulldown enables sleep-mode entry at low voltage. |
| DIR | Direction control | Digital input (0 = CW, 1 = CCW); level-sensitive with 0.6 V/2.2 V thresholds; no debouncing required. |
| U, V, W | Motor phase outputs | Three-phase gate-driver outputs driving external BLDC motor windings; each pair (U/U, V/V, W/W) shares common source connection to PGND. |
| VCC | Main power supply | Primary 6.5–18 V input; powers gate drivers, regulators, and logic; requires 10-µF bulk capacitance near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Sensorless BEMF control | Eliminates need for Hall sensors or external position feedback, reducing BOM count and mechanical complexity in fan modules. |
| Integrated buck regulator | Configurable 3.3 V or 5 V output replaces external DC/DC converter, simplifying power architecture and saving board space. |
| No external current sense | On-chip overcurrent protection uses internal MOSFET Rds(on) sensing-no shunt resistor, no layout sensitivity, no power loss. |
| EEPROM-based tuning | Stores motor-specific parameters (spin-up profile, BEMF gain, FG scaling) enabling one-time calibration and field reprogramming via I²C. |
| Ultra-low sleep current | 80 µA (DRV10975Z variant) enables battery-backed or energy-harvesting HVAC controls with multi-year standby life. |
| Thermally optimized HTSSOP | Exposed thermal pad and low RθJC(bot) = 1.1 °C/W enable >1.5 A continuous drive in compact 7.8 × 6.4 mm footprint without forced air. |
Applications
| Appliance Fan Control | HVAC Blower Module |
|---|---|
|
Use Scenario: Variable-speed exhaust fan in residential range hood with noise-sensitive kitchen environment. IC Role / Device Role / Timing Role: Primary motor driver executing sensorless sinusoidal commutation to minimize acoustic pure-tone emissions during low-speed operation. Use Value: Achieves <35 dB(A) acoustic noise at 30% speed via 180° waveform shaping-directly enabled by DRV10975PWPR's proprietary BEMF algorithm and low-rDS(on) MOSFETs. |
Use Scenario: Constant-air-volume (CAV) blower in commercial rooftop HVAC unit requiring reliable 24/7 operation across –25 °C to 60 °C ambient. IC Role / Device Role / Timing Role: Integrated motor controller managing startup, speed regulation, and fault response (lock, overtemp, surge) without external supervision. Use Value: Full protection suite (UVLO, thermal shutdown, voltage surge guard) prevents field failures during compressor cycling and outdoor temperature extremes. |
| Refrigerator Evaporator Fan | Smart Thermostat Air Handler |
|
Use Scenario: Frost-free refrigerator evaporator fan operating intermittently in humid, condensing environments with tight EMI constraints. IC Role / Device Role / Timing Role: Low-noise motor driver with integrated regulators powering its own logic and the system MCU via V3P3 output. Use Value: Single-supply design (12 V input → 3.3 V MCU rail) eliminates discrete LDO, while sinusoidal drive reduces conducted EMI below CISPR-22 Class B limits. |
Use Scenario: Wi-Fi-connected thermostat controlling ducted air handler with demand-based fan ramping and occupancy-synchronized sleep. IC Role / Device Role / Timing Role: I²C-configurable motor controller accepting speed commands from host MCU and reporting tach (FG) and status registers for closed-loop control. Use Value: EEPROM-stored spin-up profile ensures consistent 200-ms startup across thousands of units; sleep-mode current of 80 µA extends battery backup runtime during power outages. |
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 |
|---|---|---|---|
| DRV10983PWPR | Higher 2.5-A continuous current rating; identical HTSSOP-24 package and pinout; adds programmable dead time and enhanced FG resolution. | Required for >1.5-A fan loads (e.g., large commercial air handlers); same PCB layout but higher thermal margin. | Select DRV10983PWPR when motor RMS current exceeds 1.5 A or when finer speed resolution (<0.5% error) is needed for precision airflow control. |
| MP6532GQ-Z | Monolithic 3-phase driver with 2-A rating; uses different control architecture (adaptive BEMF zero-crossing); no integrated buck regulator; QFN-24 package. | Lacks on-chip 3.3/5-V regulator-requires external power management; smaller 4×4 mm QFN footprint but higher θJA (38.5 °C/W). | Choose MP6532GQ-Z only if board space is critical and external 3.3-V supply already exists; verify thermal performance under full-load continuous operation. |
Compared with DRV10975PWPR, DRV10983PWPR offers higher current headroom and register-level tuning granularity, while MP6532GQ-Z trades integrated power management for compactness-making DRV10975PWPR optimal for cost-sensitive, low-noise 12-V fan systems needing self-contained regulation and proven acoustic performance.
Availability
DRV10975PWPR is available at Aetrix Electronics and suitable for appliance fan control, HVAC blower modules, and refrigerator evaporator fan applications requiring stable component supply, long-term lifecycle support, and production-ready qualification.
Supply support for DRV10975PWPR 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 motor control IP and automotive-grade reliability validation.
The DRV10975 product line targets cost-sensitive, low-noise BLDC motor applications in white goods and climate control systems-emphasizing sensorless operation, minimal external components, and integrated power regulation to accelerate system design.
FAQ
What is the maximum continuous motor current supported by the DRV10975PWPR?
The DRV10975PWPR supports 1.5-A continuous winding current with a total H+L rDS(on) of 250 mΩ typical. This rating assumes proper PCB thermal design-including soldering the exposed thermal pad to a solid ground plane-and operation within the –40 °C to 125 °C junction temperature range. Peak current capability is 2 A for short durations, as specified in the absolute maximum ratings table of the DRV10975PWPR datasheet.
Does the DRV10975PWPR require an external current sense resistor?
No, the DRV10975PWPR does not require an external current sense resistor. It implements on-chip overcurrent protection using internal MOSFET rDS(on) monitoring, eliminating the need for external shunts, associated op-amps, and PCB layout sensitivity. The device triggers protection at 2–4 A phase-to-phase current, as verified in the Electrical Characteristics section of the DRV10975PWPR datasheet.
Can the DRV10975PWPR operate with a 5-V microcontroller I²C interface?
Yes, the DRV10975PWPR's SCL and SDA pins are 3.3-V tolerant with VI2C_H = 2.2 V and VI2C_L = 0.6 V thresholds, making them compatible with standard 5-V microcontrollers when used with appropriate pull-up resistors to 3.3 V. Direct 5-V I²C signaling is not recommended; the DRV10975PWPR must be powered from 6.5–18 V on VCC, and its I²C interface operates at V3P3 (3.3 V) logic levels.
How does the DRV10975PWPR achieve low acoustic noise in fan applications?
The DRV10975PWPR achieves low acoustic noise through proprietary sensorless back-EMF control that delivers continuous sinusoidal 180° commutation-reducing torque ripple and eliminating the pure-tone whine common in trapezoidal drives. Combined with low rDS(on) MOSFETs and optimized gate drive timing, this enables <35 dB(A) operation in appliance fans, as validated in TI's DRV10975PWPR application reports and reference designs.
What is the function of the V1P8 and V3P3 pins on the DRV10975PWPR?
V1P8 is the internal 1.8-V digital core supply output-intended solely for internal logic and not rated to drive external loads. V3P3 is a 3.3-V LDO output capable of supplying up to 5 mA to external circuitry such as a microcontroller or sensor. Both outputs derive from the integrated step-down regulator and must be decoupled with 1-µF ceramic capacitors to GND, as specified in the DRV10975PWPR power supply recommendations.
DRV10975PWPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- Brushless DC (BLDC)
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (3)
- Interface:
- Analog, I2C, PWM
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- Appliance
- Current - Output:
- 1.5A
- Voltage - Supply:
- 6.5V ~ 18V
- Voltage - Load:
- 6.5V ~ 18V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-HTSSOP
DRV10975PWPR FAQ
1.How can I place an order for DRV10975PWPR through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV10975PWPR 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 DRV10975PWPR reliable?
The price and inventory of DRV10975PWPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV10975PWPR is usually 5 days.
3.What payment methods are accepted for DRV10975PWPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV10975PWPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV10975PWPR?
DRV10975PWPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV10975PWPR 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 DRV10975PWPR?
For technical support, including DRV10975PWPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV10975PWPR requirements.
6.How does Aetrix verify that DRV10975PWPR is sourced from the original manufacturer or authorized distributors?
All DRV10975PWPR 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 DRV10975PWPR meets industry standards.
7.What is the process for return or replacement of DRV10975PWPR?
All DRV10975PWPR units undergo pre-shipment inspection (PSI). If there is an issue with DRV10975PWPR, 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 DRV10975PWPR part is unused and in its original packaging.
Return procedure for DRV10975PWPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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