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Monolithic Power Systems Inc. MP6631HGL-0000-Z
- Part No.:
- MP6631HGL-0000-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Motor Drivers, Controllers
- Package:
- 26-PowerVFQFN
- Datasheet:
-
MP6631HGL-0000-Z.pdf
- Description:
- 35V INPUT, 3A PEAK PHASE CURRENT
- Quantity:
- Payment:
- Shipping:
Inventory:4,640
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Product details
Overview
MP6631HGL-0000-Z from Monolithic Power Systems is a three-phase BLDC motor driver IC with integrated 160mΩ high-side and 75mΩ low-side MOSFETs, supporting 3.6V–24V input, up to 3A peak phase current, sinusoidal drive, and single- or triple-Hall sensor interface for fan, pump, and general BLDC motor control in industrial and embedded cooling systems.
For engineers reviewing the MP6631HGL-0000-Z datasheet, MP6631HGL-0000-Z pinout, MP6631HGL-0000-Z application, or MP6631HGL-0000-Z equivalent, this device delivers configurable closed/open-loop speed control via PWM/DC pin (1kHz–100kHz or 0–1.2V), direction/brake inputs, FG/RD rotational speed indication, and comprehensive protection including UVLO, OCP, locked-rotor detection, and thermal shutdown.
Technical Context
The MP6631HGL-0000-Z implements a Hall-sensor-based commutation controller with programmable five-point speed curve configuration, soft-start (1.3–10.4s), pre-startup timer (2.5–20ms), and selectable FG output frequencies (1x/1/2x/1/4x for single Hall; 1x/1/2x/3x for triple Hall). It supports both open-loop duty-driven and closed-loop Hall-speed feedback control modes.
Its internal architecture integrates gate drivers, analog comparators for Hall signal conditioning, cycle-by-cycle over-current protection with blanking time, and register-mapped NVM for persistent configuration of SPD_MAX, DIN_MIN, KI/KP gains, and FGRD/DC_PWM modes - all accessible via test mode and MPS Fan Driver GUI software.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 3.6V to 24V - enables direct operation from 12V/24V industrial power rails without external LDO or buck converter. |
| Peak Phase Current | 3A - supports mid-power fans and pumps requiring robust torque at startup and stall conditions. |
| HS/LS RDS(ON) | 160mΩ / 75mΩ @ 100mA - minimizes conduction loss and thermal rise in QFN-26 package under continuous 2A load. |
| PWM/DC Input | 1kHz–100kHz PWM or 0–1.2V DC - provides flexible speed command interface compatible with MCU GPIO or DAC outputs. |
| FG/RD Output | Open-drain, 1x–3x Hall frequency selection - delivers precise RPM feedback for closed-loop control or fault reporting (RD mode). |
| Thermal Shutdown | 160°C threshold with 25°C hysteresis - prevents permanent damage during overload or poor heatsinking while enabling automatic recovery. |
| UVLO Threshold | 3.3V rising with 360mV hysteresis - ensures clean startup and avoids erratic behavior during brown-out conditions. |
Pinout & Package
MP6631HGL-0000-Z is housed in a thermally enhanced QFN-26 (3mm × 4mm) package with exposed thermal pad, optimized for compact motor control modules and PCB space-constrained cooling applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 FG/RD | Open-drain speed/lock indicator | Outputs Hall edge pulses (FG) or stays low during rotor lock (RD); requires external pull-up for logic-level compatibility. |
| 2,19 OUTC | Phase C output terminal | Drives one leg of three-phase BLDC motor; connects directly to motor winding C via low-inductance trace. |
| 3,5 PGND | Power ground | High-current return path for phase currents; must be connected to thermal pad and low-impedance ground plane. |
| 4,17 OUTB | Phase B output terminal | Drives motor winding B; shares same layout constraints as OUTA/OUTC for balanced switching performance. |
| 6,15 OUTA | Phase A output terminal | Drives motor winding A; paired with HA+/HA− for commutation timing alignment. |
| 7 HA+, 9 HA− | Phase A Hall differential input | Accepts ±60mVPK-PK differential Hall signal; rejects common-mode noise up to 4.5V. |
| 10 HB+, 11 HB− | Phase B Hall differential input | Enables precise rotor position sensing for six-step or sinusoidal commutation in triple-Hall mode. |
| 12 HC+, 14 HC− | Phase C Hall differential input | Completes full three-phase Hall sensing; unused in single-Hall mode where HC+ only is active. |
| 16,18 VCC | Supply input (3.6–24V) | Must be locally bypassed with ≥10μF ceramic capacitor; powers internal logic and gate drivers. |
| 20 PWM/DC | Speed command input | Selects PWM or DC mode via DC_PWM bit; accepts 1.5V logic-high or 0–1.2V analog voltage for speed setpoint. |
| 22 REF | 5.24V reference output | Stable internal reference for external circuitry; requires 1μF local bypass for noise immunity. |
| 23 AGND | Analog ground | Separate ground for Hall comparators and reference; must tie to PGND at single point near chip. |
| 24 DIR | Direction control input | Pull low for forward (A→B→C), high for reverse (A→C→B); internally pulled down for default forward rotation. |
| 25 BRK | Brake control input | Pull high to short all phases and stop motor rapidly; internally pulled low for normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Sinusoidal Drive | Reduces torque ripple and acoustic noise across full speed range vs. trapezoidal commutation. |
| Configurable Speed Curve | Five-point interpolation (37.5%–100% duty) enables custom fan curves matching thermal profiles. |
| Soft-Start Time | Programmable 1.3s–10.4s prevents inrush current and mechanical shock during startup. |
| Locked-Rotor Protection | 0.5s detection + 4.5s auto-retry prevents MOSFET failure during jammed or stalled conditions. |
| Single-/Triple-Hall Flexibility | Configurable via SINGLE bit - reduces BOM cost with single sensor or improves accuracy with triple sensors. |
Applications
| Fan Speed Control | Industrial Pump Drive |
|---|---|
Use Scenario: Variable-speed cooling fan in telecom base station power supply with thermal feedback loop. IC Role / Device Role / Timing Role: BLDC motor driver executing Hall-synchronized sinusoidal commutation and closed-loop RPM regulation. Use Value: Achieves 40dB(A) acoustic noise reduction and 15% efficiency gain vs. brushed DC fans at partial load. | Use Scenario: Compact 24V DC circulation pump in HVAC hydronic system requiring quiet, reliable flow control. IC Role / Device Role / Timing Role: Integrated gate driver and speed controller managing three-phase motor phase timing and torque delivery. Use Value: Enables smooth zero-to-full flow ramp with <2% speed error across 10:1 turndown ratio using FG feedback. |
| Embedded Motor Module | Automotive Cabin Ventilation |
Use Scenario: Fan module in medical diagnostic equipment requiring EMI-compliant, low-noise airflow. IC Role / Device Role / Timing Role: Motor interface IC providing PWM/DC speed command acceptance, direction control, and FG tachometer output. Use Value: Eliminates need for external Hall signal conditioning and gate driver ICs, reducing component count by 40%. | Use Scenario: Blower motor in automotive climate control system with CAN bus speed setpoint and thermal derating. IC Role / Device Role / Timing Role: High-voltage motor driver handling 12V–24V battery transients and delivering 3A peak for rapid air volume response. Use Value: Supports ASIL-B relevant diagnostics via FG/RD lock detection and thermal shutdown reporting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar three-phase BLDC motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP6532HGQ-0000-Z | Higher 6A peak current, 40V max VIN, QFN-32 package - adds overvoltage tolerance and higher power headroom. | Targeted at 36V industrial pumps and larger fans; lacks FG/RD lock-detection mode and single-Hall support. | Select when >3A phase current or >24V rail margin is required; not drop-in due to pinout and register map changes. |
| TB6605FTG | External MOSFET driver (no integrated FETs), 40V max, 3.5A peak - requires discrete power stage and external current sense. | Used where thermal management demands separation of logic and power die; no built-in speed curve or soft-start. | Choose for high-temp (>125°C ambient) or high-reliability designs needing field-replaceable FETs. |
Compared with MP6631HGL-0000-Z, MP6532HGQ-0000-Z offers extended voltage/current capability but sacrifices single-Hall flexibility and FG lock reporting, while TB6605FTG trades integration for thermal scalability and external fault monitoring granularity.
Availability
MP6631HGL-0000-Z is available at Aetrix Electronics and suitable for fan speed control, industrial pump drive, embedded motor modules, and automotive cabin ventilation requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for MP6631HGL-0000-Z 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
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs, with design focus on efficiency, integration, and thermal robustness for industrial, computing, and automotive markets.
The MP6631 product line delivers highly integrated, Hall-sensor-based BLDC drivers targeting cost-sensitive, space-constrained cooling applications where sinusoidal drive, programmable speed curves, and embedded protection reduce system-level design effort.
FAQ
What Hall sensor configurations does MP6631HGL-0000-Z support?
The MP6631HGL-0000-Z supports both single-Hall and triple-Hall sensor topologies. In single-Hall mode (SINGLE=1), only HA+ and HA− are used for commutation, with HC+ serving as the active input; in triple-Hall mode (SINGLE=0), HA+/HA−, HB+/HB−, and HC+/HC− all contribute to six-step or sinusoidal timing. Configuration is done via OTP register REG05h bit 1.
How is closed-loop speed control implemented?
Closed-loop control uses internal Hall edge detection on FG/RD to measure actual electrical speed, compares it to the configured speed curve (SPD_MAX, D37.5–D87.5), and adjusts output PWM duty via PI control (KI/KP registers). It activates when OPEN_L=0 and CLOSE_H=1, or in mixed mode below 87.5% input duty - eliminating speed drift under varying load or voltage.
What protection features are integrated?
The MP6631HGL-0000-Z integrates under-voltage lockout (3.3V threshold), cycle-by-cycle over-current protection (2.7–3A trip), locked-rotor detection (0.5s timeout), thermal shutdown (160°C), and soft-start current limiting. All protections trigger automatic recovery unless latched by external fault logic, ensuring robust operation in unattended systems.
Can MP6631HGL-0000-Z drive motors without external current sensing?
Yes - the MP6631HGL-0000-Z uses internal MOSFET RDS(ON) for cycle-by-cycle current limiting and does not require external shunt resistors or sense amplifiers. Over-current detection relies on voltage drop across HS-FETs during blanking time, calibrated to 2.7–3A typical trip level per phase.
What is the function of the REF pin?
The REF pin delivers a precision 5.24V output (±1% over temperature) used to bias external Hall sensors or provide reference for auxiliary circuitry. It is internally regulated and must be bypassed with a minimum 1μF ceramic capacitor placed within 2mm of the pin to maintain stability and noise immunity.
Is MP6631HGL-0000-Z pin-compatible with earlier MP6631 variants?
Yes - MP6631HGL-0000-Z shares identical QFN-26 (3mm×4mm) footprint, pinout, and electrical characteristics with MP6631GL-0000-Z and MP6631HGL-Z variants. The "H" suffix denotes enhanced thermal performance; all share same register map, timing, and functional behavior per Rev. 1.1 datasheet.
MP6631HGL-0000-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 26-PowerVFQFN
- 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:
- PWM
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 3A
- Voltage - Supply:
- 3.6V ~ 24V
- Voltage - Load:
- 3.6V ~ 24V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 26-QFN (3x4)
MP6631HGL-0000-Z FAQ
1.How can I place an order for MP6631HGL-0000-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP6631HGL-0000-Z 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 MP6631HGL-0000-Z reliable?
The price and inventory of MP6631HGL-0000-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP6631HGL-0000-Z is usually 5 days.
3.What payment methods are accepted for MP6631HGL-0000-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP6631HGL-0000-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP6631HGL-0000-Z?
MP6631HGL-0000-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP6631HGL-0000-Z 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 MP6631HGL-0000-Z?
For technical support, including MP6631HGL-0000-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP6631HGL-0000-Z requirements.
6.How does Aetrix verify that MP6631HGL-0000-Z is sourced from the original manufacturer or authorized distributors?
All MP6631HGL-0000-Z 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 MP6631HGL-0000-Z meets industry standards.
7.What is the process for return or replacement of MP6631HGL-0000-Z?
All MP6631HGL-0000-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP6631HGL-0000-Z, 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 MP6631HGL-0000-Z part is unused and in its original packaging.
Return procedure for MP6631HGL-0000-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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