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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Motor Drivers, Controllers

Monolithic Power Systems Inc. MP6632GR-0000-Z

Name: MP6632GR-0000-Z
Brand: Monolithic Power Systems Inc.
SKU: MP6632GR-0000-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP6632GR-0000-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Motor Drivers, Controllers

Package:: 32-VFQFN Exposed Pad

Datasheet:: MP6632GR-0000-Z.pdf

Description:: 50V, THREE-PHASE BLDC MOTOR DRIV

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Product details

Overview

MP6632GR-0000-Z from Monolithic Power Systems is a three-phase BLDC motor driver IC with integrated 1A gate drivers, 6V–50V input range, sinusoidal/trapezoidal drive modes, and closed-loop/open-loop speed control via PWM/DC pin. It delivers rotational speed detection (FG/RD), direction/brake control (DIR/BRK), and operates in QFN-32 (4mm×4mm) for compact fan and pump motor control.

For engineers reviewing the MP6632GR-0000-Z datasheet, MP6632GR-0000-Z pinout, MP6632GR-0000-Z application, or MP6632GR-0000-Z equivalent, key selection criteria include configurable dead time (via DT pin), leading angle tuning (LA pin), OCP threshold setting (OC pin), and support for single- or triple-Hall sensor inputs across industrial and appliance motor systems.

Technical Context

The MP6632 implements digital control logic with register-configurable drive mode (sinusoidal or trapezoidal), selectable switching frequency (25kHz/50kHz), and mixed-mode speed control-closed-loop below 87.5% input duty, open-loop above. Its Hall interface supports both differential (HA+/HA−, etc.) and logic-level (HLOGIC = 1) modes with ±1mV offset and ±13mV hysteresis.

Protection architecture integrates UVLO (5.2V rising threshold), thermal shutdown (175°C trip, 30°C hysteresis), locked-rotor detection (0.5s timeout), and programmable over-current protection with retry/latch-off options. The FG/RD pin provides open-drain speed indication at 1x/1/2x/3x (triple-Hall) or 1x/1/2x/1/4x (single-Hall) Hall frequencies.

Key Specifications

Parameter	Value and Actual Design Meaning
VIN Range	6V to 50V - supports wide-input industrial and 12V/24V/48V DC bus systems without external pre-regulation.
Gate Drive Current	1A sourcing/sinking - sufficient to drive MOSFETs up to 10nC gate charge at 25kHz with <5Ω pull-up/pull-down resistance.
Switching Frequency	25kHz or 50kHz - selectable via SW_SEL register; 25kHz enables lower EMI and higher efficiency in fan applications.
Speed Control Input	0–3.3V DC or 50Hz–100kHz PWM - linear DC mapping enables analog potentiometer-based speed adjustment; wide PWM range supports microcontroller-generated signals.
OCP Threshold	90–110mV (ROC = 28kΩ) - sets current limit at sense resistor; adjustable from 20mV to 200mV via OC pin resistor for precise motor phase current protection.
Dead Time	100–800ns - configurable via DT pin resistor; prevents shoot-through in half-bridge stages across all three phases simultaneously.
Leading Angle	0°–60° - set via LA pin resistor; compensates for back-EMF phase lag only in sinusoidal mode to maximize torque and reduce acoustic noise.

Pinout & Package

MP6632GR-0000-Z is housed in a thermally enhanced QFN-32 (4mm × 4mm, 0.5mm pitch) package with exposed thermal pad (EP) on underside for PCB heat dissipation. Pin 1 is located at top-left corner per top-marking orientation.

Pin/Terminal	Circuit Role	Design Meaning
1 AGND	Analog ground reference	Separate low-noise return path for Hall sensing, VREG, and internal LDO; must be routed to quiet ground plane.
2 PWM/DC	Speed command input	Configures control mode (PWM or DC) via internal register; includes 85kΩ pull-up for robust signal detection.
3 FG/RD	Open-drain speed/lock indicator	Outputs Hall edge pulses (FG) or active-low lock fault (RD); requires external pull-up for logic-level compatibility.
4 DIR	Direction select input	Pull-down internal resistor (100kΩ); logic high reverses commutation sequence (A→C→B) vs. default forward (A→B→C).
5 BRK	Brake enable input	Pull-down internal resistor (100kΩ); high state forces all low-side FETs on for dynamic braking.
17 ISEN	Current sense input	High-impedance node for shunt resistor connection; monitors bus current for OCP and closed-loop feedback.
18–20, 22–24, 27–29 GLA/GHA/BSTA, etc.	Phase gate drivers	Three independent high-side (GHA/GHB/GHC) and low-side (GLA/GLB/GLC) outputs with bootstrap (BSTx) terminals for N-channel FETs.
31 VCC	Main power supply	6–50V input; powers gate drivers and internal circuitry; includes UVLO with 0.5V hysteresis for stable startup.

Key Features

Feature	Design Value
Sinusoidal + Trapezoidal Drive Modes	Register-selectable commutation; sinusoidal reduces torque ripple and audible noise; trapezoidal simplifies timing and increases efficiency at mid/high speeds.
Configurable Speed Curve	Five-point interpolation (37.5%–100% input duty) enables custom fan ramp profiles and precise speed regulation under variable load.
Single- or Triple-Hall Sensor Support	Differential Hall inputs (HA+/HA−, etc.) with ±30mV common-mode range and ±1mV offset tolerance ensure reliable rotor position detection in noisy environments.
Soft Start & Pre-Startup	Programmable tSS (1.3–10.4s) and TPRE-controlled ramp prevent inrush current during cold start; alignment vector ensures repeatable rotor initialization.
Integrated VREG Output	10V ±0.5V regulated output (30mA max) powers external Hall sensors or level-shifters; load regulation holds within 50mV across full current range.

Applications

Server Cooling Fan

Industrial Air Pump

Use Scenario: High-reliability 48V server chassis fan requiring silent operation and precise RPM control across ambient temperatures from 0°C to 70°C.

IC Role / Device Role / Timing Role: BLDC motor controller managing commutation, speed regulation, and fault reporting via FG/RD and nFT pins.

Use Value: Sinusoidal drive reduces acoustic noise by >10dB(A); closed-loop speed control maintains ±2% RPM accuracy despite dust accumulation or voltage droop.

Use Scenario: 24V air compressor in factory automation needing robust start-up under load and thermal resilience up to 105°C ambient.

IC Role / Device Role / Timing Role: Three-phase gate driver with integrated OCP, locked-rotor recovery, and thermal shutdown for continuous-duty motor control.

Use Value: Auto-retry locked-rotor protection (0.5s detection, 4.5s restart) prevents system downtime; QFN-32 thermal pad sustains 2.97W dissipation at TA = 25°C.

Medical Ventilator Blower

Smart Home HVAC Actuator

Use Scenario: Low-voltage (12V) blower in portable ventilator requiring fail-safe braking, speed verification, and EMC-compliant 25kHz switching.

IC Role / Device Role / Timing Role: Safety-critical motor controller providing DIR-controlled bidirectional airflow and BRK-triggered emergency stop.

Use Value: Open-drain nFT fault flag enables immediate MCU intervention; FG/RD pulse output allows real-time RPM validation for FDA-compliant logging.

Use Scenario: Wi-Fi-connected duct damper actuator using 5V–24V supply and microcontroller-based speed profile scheduling.

IC Role / Device Role / Timing Role: Compact motor driver accepting 0–3.3V DC speed commands and delivering smooth trapezoidal commutation.

Use Value: D_MIN pin resistor configures minimum duty (15.6% at 10kΩ) to prevent stalling; standby current <200µA extends battery life in wireless nodes.

Equivalent & Alternatives

The following parts are listed as comparable options for similar three-phase BLDC motor controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STSPIN32F0A	Integrated 32-bit ARM Cortex-M0+ MCU, 200V 650mA gate drivers, no external Hall support - requires embedded firmware development.	Best for designs needing field-oriented control (FOC) or custom diagnostics; lacks configurable speed curve and FG/RD output.	Select when algorithmic flexibility outweighs hardware simplicity; requires ST Motor Control SDK and BOM overhead for MCU peripherals.
TB6605FTG	60V, 1.5A gate drivers, fixed 150kHz fSW, no sinusoidal mode or speed curve configuration - analog-only control interface.	Suitable for cost-sensitive fans with basic PWM speed control; no closed-loop capability or Hall input flexibility.	Choose for legacy designs prioritizing pin count and minimal external components; lacks programmable protections and thermal monitoring resolution.

Compared with STSPIN32F0A and TB6605FTG, MP6632GR-0000-Z uniquely balances analog configurability (resistor-programmed OCP, DT, LA) with digital features (register-based speed curve, mixed-mode control), enabling rapid deployment in fan/pump systems without firmware investment while maintaining precision and safety.

Availability

MP6632GR-0000-Z is available at Aetrix Electronics and suitable for server cooling fans, industrial air pumps, medical ventilator blowers, and smart HVAC actuators requiring stable component supply, long-lifecycle assurance, and RoHS-compliant packaging.

Supply support for MP6632GR-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, including DC/DC converters, motor drivers, and LED controllers, with global design centers and AEC-Q100-qualified automotive products.

The MP6632 belongs to MPS's BLDC motor controller product line, engineered specifically for quiet, efficient, and robust control of three-phase brushless motors in thermal management, fluid handling, and precision motion applications.

FAQ

What Hall sensor configurations does MP6632GR-0000-Z support?

MP6632GR-0000-Z supports both single-Hall (using HC+ only) and triple-Hall (HA+/HA−, HB+/HB−, HC+/HC−) inputs. Differential mode provides ±30mV common-mode range and ±1mV offset rejection; logic-level mode accepts standard 0V/3.3V Hall outputs. Configuration is set via HLOGIC register bit.

How is the starting duty cycle configured on MP6632GR-0000-Z?

The starting duty cycle is set either by an external resistor on the D_MIN pin (e.g., 10kΩ yields 15.6%) or via internal SPD_ZERO/MAX_EN register bits. When D_MIN is floated, the register value takes precedence. The configured duty remains constant until power-on reset, ensuring consistent motor startup behavior.

Does MP6632GR-0000-Z require external bootstrap capacitors?

Yes - each high-side gate driver (GHA/GHB/GHC) requires a dedicated bootstrap capacitor (typically 0.1µF X7R) between BSTx and SWx pins. These capacitors recharge during low-side conduction and must be placed close to the IC with low-inductance routing to sustain 1A peak gate current at 25kHz.

What protection features are implemented in hardware versus firmware?

UVLO, thermal shutdown (175°C), locked-rotor detection (0.5s timeout), and OCP are fully hardware-based with immediate response. Closed-loop integrator gain (KI/KP), speed curve points, and FG frequency selection (FGRD[1:0]) are register-configured but do not require firmware execution - they operate autonomously after initial setup.

Can MP6632GR-0000-Z operate without external Hall sensors?

No - MP6632GR-0000-Z requires Hall-effect sensor feedback for commutation timing. It does not support sensorless (back-EMF) operation. The device supports both single- and triple-Hall configurations but mandates at least one Hall input for rotor position detection and phase sequencing.

What is the function of the VREG pin and its load capability?

VREG provides a regulated 10V ±0.5V output (typ. 9.5–10.5V) with up to 30mA load current. It powers external Hall sensors, level shifters, or bias networks. Load regulation holds within 50mV from 0 to 30mA, and the LDO shuts down in standby mode to minimize quiescent current.

How is direction reversal implemented and what is the timing impact?

Direction reversal is controlled by the DIR pin: low = forward (A→B→C), high = reverse (A→C→B). The change occurs synchronously with the next Hall edge transition, introducing no delay beyond one electrical cycle. No additional timing configuration or register write is required for immediate reversal.

MP6632GR-0000-Z Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: 32-VFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Motor Type - Stepper:: Multiphase

Motor Type - AC, DC:: Brushless DC (BLDC)

Function:: Controller - Speed

Output Configuration:: Half Bridge (3)

Interface:: PWM

Technology:: NMOS

Step Resolution:: -

Applications:: General Purpose

Current - Output:: 1A

Voltage - Supply:: 6V ~ 50V

Voltage - Load:: 6V ~ 50V

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 32-QFN (4x4)

MP6632GR-0000-Z FAQ

1.How can I place an order for MP6632GR-0000-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MP6632GR-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 MP6632GR-0000-Z reliable?

The price and inventory of MP6632GR-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 MP6632GR-0000-Z is usually 5 days.

3.What payment methods are accepted for MP6632GR-0000-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP6632GR-0000-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP6632GR-0000-Z?

MP6632GR-0000-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP6632GR-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 MP6632GR-0000-Z?

For technical support, including MP6632GR-0000-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP6632GR-0000-Z requirements.

6.How does Aetrix verify that MP6632GR-0000-Z is sourced from the original manufacturer or authorized distributors?

All MP6632GR-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 MP6632GR-0000-Z meets industry standards.

7.What is the process for return or replacement of MP6632GR-0000-Z?

All MP6632GR-0000-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP6632GR-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 MP6632GR-0000-Z part is unused and in its original packaging.

Return procedure for MP6632GR-0000-Z:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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