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Texas Instruments MCF8315C1VPWPR
- Part No.:
- MCF8315C1VPWPR
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 24-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MCF8315C1VPWPR.pdf
- Description:
- 40V MAX, 4A PEAK, SENSORLESS FIE
- Quantity:
- Payment:
- Shipping:
Inventory:3,481
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Product details
Overview
MCF8315C1VPWPR from Texas Instruments is a sensorless Field-Oriented Control (FOC) BLDC motor driver IC with integrated 40V-rated power FETs, 3.5A peak output current, 265mΩ typical RDS(ON) (H+L), built-in 3.3V/5V buck regulator (170mA), and EEPROM-based configuration storage. It enables code-free motor control in residential fans, air purifiers, and CPAP machines.
For engineers reviewing the MCF8315C1VPWPR datasheet, MCF8315C1VPWPR pinout, MCF8315C1VPWPR application, or MCF8315C1VPWPR equivalent, key selection considerations include HTSSOP-24 package compatibility, integrated current sensing (no external shunts), I²C-configurable speed profiles, and thermal shutdown/fault diagnostics via nFAULT and ALARM pins.
Technical Context
The MCF8315C1VPWPR implements a closed-loop sensorless FOC algorithm using back-EMF estimation and real-time rotor position tracking. It supports analog, PWM, frequency, or I²C-based speed commands and includes configurable start-up/stopping sequences, windmilling recovery, and 5-point speed profiling.
Its integrated power stage comprises six N-channel MOSFETs arranged as three half-bridges, driven by adaptive gate control with programmable slew rate (125–345 V/µs) and automatic dead-time compensation (500–850 ns). Protection logic includes UVLO (4.4V), OVP (34V), overcurrent (9–18A trip), thermal warning/shutdown, and five motor lock detection modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Voltage | 4.5–35 V input range (40 V absolute max); supports 12–24 V BLDC/PMSM motors without external level-shifting. |
| Peak Output Current | 3.5 A (HTSSOP PWP package); sufficient for mid-power fan and pump applications up to ~100 W mechanical output. |
| RDS(ON) (H+L) | 265 mΩ typical at TJ = 25°C; enables low conduction loss and <1.5 W total FET dissipation at 3.5 A continuous. |
| Buck Regulator Output | Configurable 3.3 V / 5.0 V @ 170 mA; powers external microcontrollers or sensors without secondary regulators. |
| Sleep Mode Current | 5 µA max at VVM = 24 V, TA = 25°C; enables ultra-low-power standby in battery-backed or energy-sensitive systems. |
| Speed Loop Accuracy | 1% with external clock reference; critical for precise airflow control in medical and HVAC applications. |
| PWM Frequency Support | Up to 60 kHz; allows use with low-inductance motors while maintaining EMI compliance via spread-spectrum modulation. |
Pinout & Package
Package: HTSSOP-24 (7.8 mm × 6.4 mm, wettable flank), thermally enhanced with exposed pad connected to AGND.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| OUTA / OUTB / OUTC | Half-bridge power outputs | Drive motor phases A/B/C directly; each pair (high-side + low-side) delivers up to 3.5 A peak with integrated gate drivers. |
| VM | Main power supply input | Connects to motor bus (4.5–35 V); bypassed to PGND with 0.1 µF + bulk capacitor; feeds internal FETs and regulators. |
| SPEED/WAKE | Multi-mode speed command input | Accepts analog voltage (0–3 V), PWM (0.01–100 kHz), or frequency signal; also serves as wake-up trigger from sleep mode. |
| nFAULT | Open-drain fault indicator | Pulled low during UVLO, OVP, OCP, OTW, motor lock, or watchdog timeout; requires external pull-up (1.8–5.0 V). |
| DRVOFF | Motor coast enable | High → forces all six FETs into high-impedance state for immediate mechanical coasting; used for emergency stop or braking control. |
| I²C (SDA/SCL) | Configuration and diagnostics interface | Enables runtime reconfiguration of speed profiles, protection thresholds, and fault reporting; supports standard/fast mode (≤400 kHz). |
| AVDD / DVDD | Analog/digital LDO outputs | 3.3 V @ 20 mA (AVDD) and 1.5 V @ 10 mA (DVDD); power internal analog circuitry and digital core respectively. |
| PGND / AGND / DGND / GND_BK | Separate ground domains | Isolates power, analog, digital, and buck regulator return paths to minimize noise coupling and ensure stable FOC operation. |
Key Features
| Feature | Design Value |
|---|---|
| Code-free sensorless FOC | Eliminates need for motor parameter tuning or firmware development; motor identification performed offline via MPET tool. |
| Integrated current sensing | Removes requirement for external shunt resistors, reducing BOM cost, PCB area, and thermal drift errors in current feedback. |
| Configurable 5-point speed profile | Enables smooth acceleration/deceleration ramps and multi-segment velocity trajectories for quiet, jerk-free operation in appliances. |
| Anti-voltage surge (AVS) protection | Detects and suppresses transient overvoltage events on VM pin before they damage internal FETs or logic circuits. |
| Automatic dead time compensation | Adjusts timing between high-side and low-side FET switching to prevent shoot-through across temperature and load variations. |
| Windmilling support | Resynchronizes rotor position during free-spinning (e.g., fan coast-down) and enables reverse drive for active braking. |
Applications
| Residential Fans | Air Purifiers & Humidifiers |
|---|---|
|
Use Scenario: Variable-speed ceiling or tower fans requiring quiet, energy-efficient airflow control across multiple user-set levels. IC Role / Device Role / Timing Role: Primary motor controller executing sensorless FOC to maintain precise RPM under varying blade load and ambient conditions. Use Value: 3.5A peak current and 265mΩ RDS(ON) enable >85% efficiency at mid-load; sleep mode current ≤5 µA reduces standby power to <120 µW. |
Use Scenario: Compact air purification units with brushless blower motors needing reliable, maintenance-free operation over 10+ years. IC Role / Device Role / Timing Role: Standalone motor driver with EEPROM-stored configuration; operates without host MCU after initial setup. Use Value: Built-in 3.3V/5V buck regulator powers fan controller MCU; I²C diagnostics allow remote fault logging and predictive maintenance. |
| CPAP Machines | Washer/Dishwasher Pumps |
|
Use Scenario: Medical-grade continuous positive airway pressure devices requiring ultra-quiet, ripple-free airflow delivery at precisely regulated pressure. IC Role / Device Role / Timing Role: Precision speed actuator responding to pressure feedback loops; uses external clock reference for ±1% speed accuracy. Use Value: Automatic dead time compensation and spread-spectrum PWM reduce acoustic noise; thermal shutdown (150°C) ensures patient safety compliance. |
Use Scenario: High-reliability recirculation pumps in home appliances exposed to moisture, vibration, and wide temperature swings (–40°C to 125°C). IC Role / Device Role / Timing Role: Integrated motor driver with five motor lock detection types and configurable OCP thresholds to handle clogged filter or dry-run conditions. Use Value: 40 V abs max rating withstands load-dump transients; wettable-flank HTSSOP package enables automated optical inspection (AOI) for high-yield manufacturing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar BLDC motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCF8316C1VPWPR | Same HTSSOP-24 package; adds Hall sensor interface and enhanced motor parameter auto-tuning for higher-accuracy commutation. | Required where positional accuracy exceeds sensorless FOC capability-e.g., torque-critical robotic joints or servo-assisted valves. | Select when Hall-based commutation or dynamic parameter adaptation is needed; not drop-in compatible due to added pin functions and EEPROM map changes. |
| DRV10983ZRRGR | 3-phase sensorless BLDC driver in 24-pin QFN; lower peak current (2 A), no integrated buck regulator, no EEPROM, no I²C diagnostics. | Suitable for cost-sensitive, low-power fans where external regulation and basic speed control suffice. | Choose for simpler designs without diagnostic needs or external power management; requires external 3.3 V supply and lacks sleep-mode optimization. |
Compared with MCF8315C1VPWPR, MCF8316C1VPWPR offers superior rotor position fidelity at the cost of increased system complexity, while DRV10983ZRRGR trades integration and intelligence for lower BOM cost and reduced feature set-making it appropriate only for non-critical, low-power applications.
Availability
MCF8315C1VPWPR is available at Aetrix Electronics and suitable for residential appliance fans, medical CPAP blowers, and white-goods pump modules requiring stable component supply, long-term lifecycle support, and automotive-grade reliability validation.
Supply support for MCF8315C1VPWPR 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 investment.
The MCF8315C product line delivers highly integrated, code-free BLDC solutions targeting consumer, medical, and industrial motion systems where rapid time-to-market, acoustic performance, and functional safety readiness are critical.
FAQ
What motor types and voltage ranges does the MCF8315C1VPWPR support?
The MCF8315C1VPWPR supports 12 V to 24 V brushless-DC (BLDC) and permanent magnet synchronous (PMSM) motors with peak currents up to 3.5 A. Its 4.5–35 V operating range accommodates nominal 12 V and 24 V systems, including transient surges up to 40 V absolute maximum. The device performs sensorless FOC without position sensors and is validated for fan, pump, and blower loads.
Does the MCF8315C1VPWPR require external current sense resistors?
No, the MCF8315C1VPWPR uses integrated current sensing and does not require external shunt resistors. This eliminates associated power loss, board space, thermal drift, and calibration overhead. The internal sensing supports full closed-loop FOC operation and overcurrent protection without external components.
How is motor configuration stored and updated on the MCF8315C1VPWPR?
Motor configuration-including FOC parameters, speed profiles, protection thresholds, and startup behavior-is stored in on-chip EEPROM. Configuration is performed once using TI's Motor Parameter Extraction Tool (MPET) and persists across power cycles. Updates can be made via I²C interface during operation or in-system programming without requiring reflashing.
What protection features are integrated into the MCF8315C1VPWPR?
The MCF8315C1VPWPR integrates supply UVLO (4.4 V), OVP (34 V), overcurrent protection (9–18 A trip), thermal warning/shutdown (150°C), five motor lock detection methods, and anti-voltage surge (AVS) circuitry. Fault status is reported via open-drain nFAULT and optional ALARM pins, with detailed diagnostics accessible over I²C.
Can the MCF8315C1VPWPR operate without an external microcontroller?
Yes, the MCF8315C1VPWPR is designed for standalone operation. Once configured and stored in EEPROM, it executes sensorless FOC autonomously using analog, PWM, or frequency speed commands on the SPEED/WAKE pin. No host MCU is required for basic speed-controlled motor operation.
MCF8315C1VPWPR 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:
- Multiphase
- 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:
- NMOS
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 3.5A
- Voltage - Supply:
- 4.5V ~ 35V
- Voltage - Load:
- 4.5V ~ 35V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-HTSSOP
MCF8315C1VPWPR FAQ
1.How can I place an order for MCF8315C1VPWPR through Aetrix?
Please submit a Request for Quotation (RFQ) for MCF8315C1VPWPR 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 MCF8315C1VPWPR reliable?
The price and inventory of MCF8315C1VPWPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCF8315C1VPWPR is usually 5 days.
3.What payment methods are accepted for MCF8315C1VPWPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCF8315C1VPWPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCF8315C1VPWPR?
MCF8315C1VPWPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCF8315C1VPWPR 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 MCF8315C1VPWPR?
For technical support, including MCF8315C1VPWPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCF8315C1VPWPR requirements.
6.How does Aetrix verify that MCF8315C1VPWPR is sourced from the original manufacturer or authorized distributors?
All MCF8315C1VPWPR 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 MCF8315C1VPWPR meets industry standards.
7.What is the process for return or replacement of MCF8315C1VPWPR?
All MCF8315C1VPWPR units undergo pre-shipment inspection (PSI). If there is an issue with MCF8315C1VPWPR, 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 MCF8315C1VPWPR part is unused and in its original packaging.
Return procedure for MCF8315C1VPWPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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