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

Monolithic Power Systems Inc. MP6652GJS-0000-P

Name: MP6652GJS-0000-P
Brand: Monolithic Power Systems Inc.
SKU: MP6652GJS-0000-P
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP6652GJS-0000-P

Manufacturer:: Monolithic Power Systems Inc.

Category:: Motor Drivers, Controllers

Package:: SOT-23-6 Thin, Flat Leads

Datasheet:: MP6652GJS-0000-P.pdf

Description:: 18V, SINGLE-PHASE BLDC MOTOR DRI

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Product details

Overview

MP6652GJS-0000-P from Monolithic Power Systems is a single-phase brushless DC (BLDC) fan motor driver IC with integrated Hall-effect sensor, power MOSFETs (850 mΩ total R_DS(ON)), and configurable speed curve control. It operates from 3V to 18V input, delivers fixed 27 kHz switching frequency, supports 1–100 kHz PWM speed command input, and provides FG/RD open-drain rotational speed or lock detection output - designed specifically for CPU/GPU cooling fan systems.

For engineers reviewing the MP6652GJS-0000-P datasheet, MP6652GJS-0000-P pinout, MP6652GJS-0000-P application, or MP6652GJS-0000-P equivalent, key selection considerations include its integrated Hall sensor placement (TSOT23-6-SL package), configurable soft-on/off commutation angles (2.8°–90°), rotor lock auto-recovery timing (3.6 s retry), and dual-mode FG output scaling (0.5x/1x/2x Hall frequency).

Technical Context

The MP6652GJS-0000-P implements closed-loop commutation using an on-die Hall sensor whose signal is phase-shifted via programmable HAL_ANG register (0–45° lag/lead) to generate HA_OUT for precise timing control of OUT1/OUT2 H-bridge outputs. Its 8-point configurable speed curve (D1–D8 registers) maps 12.5%–100% input PWM duty to corresponding output duty, enabling nonlinear fan response matching thermal profiles.

Protection logic integrates independent UVLO (2.5 V rising threshold), OVP (19.1 V typical), thermal shutdown (170°C), and rotor lock detection (0.6 s no-Hall-edge timeout). All protections feature auto-recovery, and FG/RD pin behavior is dynamically reconfigurable between speed indication (FG) and lock fault signaling (RD) via FGRD register bits.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	3 V to 18 V - supports wide-range DC input including 5 V, 12 V, and 15 V fan rails without external regulation.
Switching Frequency	Fixed 27 kHz - eliminates audible noise in cooling applications while maintaining efficient MOSFET switching.
PWM Input Frequency	1 kHz to 100 kHz - compatible with standard microcontroller PWM peripherals and avoids interference with system clock domains.
Total R_DS(ON)	850 mΩ (HS + LS) - enables ≥500 mA continuous motor current at 12 V with minimal conduction loss and self-heating.
FG Output Scaling	Selectable 0.5×, 1×, or 2× Hall frequency - allows direct tachometer compatibility with legacy fan controllers requiring specific pulse-per-revolution ratios.
Soft-On/Off Angle	Configurable 2.8° to 90° in 32 steps - reduces mechanical stress during startup/shutdown and minimizes acoustic noise in sensitive environments.
Rotor Lock Detection	0.6 s timeout, auto-retry after 3.6 s - prevents thermal damage during stalled conditions while enabling autonomous recovery without host intervention.

Pinout & Package

MP6652GJS-0000-P is housed in a TSOT23-6-SL package (1.6 mm × 2.9 mm × 0.85 mm), with Hall sensor embedded at (X=800 µm, Y=783 µm, Z=80 µm) relative to package corner. The pinout is validated per MPS datasheet Rev. 1.0 (Dec 2021) and supports compact PCB layout for fan module integration.

Pin/Terminal	Circuit Role	Design Meaning
1 GND	Power ground reference	Common return path for all internal circuits; must be low-impedance connection to system ground plane.
2 VCC	Supply input (3–18 V)	Primary power rail; requires local 1–10 µF ceramic bypass capacitor placed adjacent to pin.
3 FG/RD	Open-drain output	Configurable as rotational speed indicator (FG) or rotor lock fault flag (RD); requires external pull-up resistor.
4 PWM	Digital speed command input	Accepts 1–100 kHz PWM signal; internal 100 kΩ pull-up enables default high state during idle.
5 OUT2	H-bridge low-side output	Drives one terminal of single-phase BLDC motor; switches synchronously with OUT1 under Hall-based commutation.
6 OUT1	H-bridge high-side output	Drives opposite motor terminal; complements OUT2 to generate bidirectional torque and rotation direction control.

Key Features

Feature	Design Value
Integrated Hall sensor	Embedded in TSOT23-6-SL die location (X=800 µm, Y=783 µm) - eliminates external sensor placement error and simplifies mechanical alignment in fan assemblies.
Configurable speed curve	8-point lookup table (D1–D8 registers) mapping 12.5%–100% input PWM to custom output duty - enables precise thermal response tuning without firmware changes.
Soft-commutation control	Independent SON_ANG (2.8°–90°) and SOFF_ANG (2.8°–90°) registers - reduces audible noise and electromagnetic emissions during acceleration/deceleration.
Auto-recovering protections	UVLO (2.5 V), OVP (19.1 V), thermal shutdown (170°C), and rotor lock (0.6 s timeout) all resume operation after fault clearance - ensures fan reliability in unattended systems.
FG/RD dual-mode output	FGRD[1:0] register selects 0.5×/1×/2× Hall frequency or RD fault flag - enables reuse of same pin for diagnostics and tach feedback in space-constrained modules.

Applications

CPU Cooling Fans

GPU Cooling Fans

Use Scenario: Active thermal management in high-performance computing platforms where dynamic fan speed adjustment responds to real-time die temperature.

IC Role / Device Role / Timing Role: Single-phase BLDC driver executing Hall-synchronized commutation; receives PWM speed commands from platform controller and reports RPM via FG output.

Use Value: Integrated Hall sensor and 8-point speed curve eliminate need for external position sensing and enable quiet, responsive fan control matching CPU thermal envelope.

Use Scenario: Thermal regulation of discrete graphics processing units under variable GPU load, requiring rapid speed transitions and stall resilience.

IC Role / Device Role / Timing Role: Motor driver with rotor lock auto-recovery and configurable soft-off angle - maintains airflow integrity during transient thermal spikes and prevents thermal throttling.

Use Value: 3.6 s lock retry time and 0.6 s detection window ensure reliable restart after momentary obstruction, avoiding manual intervention in sealed chassis.

Server Chassis Fans

Industrial Embedded Cooling

Use Scenario: Redundant cooling in 1U/2U rack-mount servers where fan failure detection and reporting are critical for system health monitoring.

IC Role / Device Role / Timing Role: FG/RD pin configured as tachometer (1× Hall) for RPM telemetry and as lock fault (RD mode) for predictive maintenance alerts via BMC interface.

Use Value: Dual-mode FG/RD output enables both real-time speed feedback and fault logging using single I/O line, reducing server board pin count and BOM cost.

Use Scenario: Fan control in industrial HMIs, PLC enclosures, or edge AI gateways operating across -40°C to +125°C ambient range with high EMI immunity requirements.

IC Role / Device Role / Timing Role: Robust motor driver with 2000 V HBM ESD rating, thermal shutdown, and input OVP/UVLO - sustains operation in electrically noisy factory environments.

Use Value: TSOT23-6-SL package and integrated protections reduce need for external TVS diodes or thermal sensors, lowering system-level design complexity.

Equivalent & Alternatives

The following parts are listed as comparable options for similar single-phase BLDC fan driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MP6651GJS-Z	Lacks integrated Hall sensor; requires external Hall IC or back-EMF sensing; lower R_DS(ON) (700 mΩ); no FG/RD dual-mode output.	Suitable only when external position sensing is acceptable and higher efficiency at low voltage is prioritized over integration.	Select MP6651GJS-Z if board space allows external Hall placement and thermal margin permits higher conduction loss at 3 V.
ALLEGRO A89335KESJTR-T	Higher voltage rating (28 V max); includes SPI interface for full register access; no configurable soft-commutation angles; larger 8-pin SOIC package.	Better suited for high-voltage industrial fans but requires additional MCU GPIO and PCB area; lacks MP6652's compact TSOT23 footprint.	Choose A89335KESJTR-T only when >18 V operation or SPI-based runtime parameter updates are mandatory.

Compared with MP6652GJS-0000-P, MP6651GJS-Z trades Hall integration for slightly lower R_DS(ON), while A89335KESJTR-T adds SPI configurability at the cost of size and voltage overhead - making MP6652 the optimal balance of integration, footprint, and fan-specific features.

Availability

MP6652GJS-0000-P is available at Aetrix Electronics and suitable for CPU cooling fans, GPU thermal management systems, and industrial embedded cooling applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MP6652GJS-0000-P 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 expertise in DC-DC converters, motor drivers, and battery management solutions.

The MP6652 belongs to MPS's fan driver product line, engineered specifically for intelligent, compact, and acoustically optimized cooling in compute-intensive applications - emphasizing Hall integration, configurable dynamics, and robust fault handling.

FAQ

What is the function of the FG/RD pin, and how is it configured?

The FG/RD pin serves dual roles: rotational speed indication (FG) or rotor lock fault signaling (RD). Configuration is controlled by the FGRD[1:0] register bits (00 = 1× Hall frequency, 01 = 0.5×, 10 = 2×, 11 = RD mode). In FG mode, it outputs an open-drain square wave synchronized to Hall edges; in RD mode, it pulls low (or high, depending on RD_HL bit) when no Hall transition is detected for 0.6 seconds.

Does MP6652GJS-0000-P require external current-sense resistors?

No. The MP6652GJS-0000-P implements internal over-current protection (OCP) by monitoring MOSFET conduction voltage drop, eliminating the need for external sense resistors. The OCP threshold is configurable via OCP_SEL[1:0] register (0.45 A to 1.3 A), and protection triggers within blanking time without external components.

Can the soft-start time be adjusted, and what is its range?

Yes. Soft-start (SS) transition time - the duration for output duty cycle to ramp from 0% to 100% - is set by T_SS[1:0] register bits. Valid values are 2.4 s (00), 4.8 s (01), 7.2 s (10), or 9.6 s (11). This parameter directly controls inrush current magnitude during startup and is stored in OTP memory after configuration.

What Hall sensor characteristics does MP6652GJS-0000-P support?

The integrated Hall sensor operates with ±1 mT minimum magnetic field sensitivity and supports configurable Hall offset angle (HAL_ANG[3:0], 2.8°–45°) and lag/lead direction (HAL_FLAG). Its physical position is fixed at (X=800 µm, Y=783 µm) in the TSOT23-6-SL package, enabling precise mechanical alignment with magnet placement in fan rotors.

How does rotor lock protection behave during auto-recovery?

Upon detecting no Hall edge for 0.6 s, MP6652GJS-0000-P asserts RD on FG/RD (if configured), turns on both low-side MOSFETs to dissipate energy, and initiates retry after LOCK_SEL-defined delay (default 3.6 s). Recovery occurs automatically once three valid Hall edges are observed, restoring normal commutation without host reset or register write.

Is MP6652GJS-0000-P compatible with 3.3 V logic-level PWM inputs?

Yes. The PWM input accepts logic-high thresholds down to 2 V (VPWMH min), making it fully compatible with 3.3 V microcontrollers. An internal 100 kΩ pull-up ensures default high state during MCU boot or sleep, preventing unintended motor stoppage due to floating input.

What package variants exist for MP6652, and how do they differ?

MP6652 is offered in two variants: MP6652GJS-xxxx (TSOT23-6-SL) and MP6652GJL-xxxx (TSOT23-6-L). Both share identical electrical specs and pinout, but differ in mold compound and Hall sensor positioning - the SL variant places the Hall sensor at (800 µm, 783 µm) for optimized axial fan magnet alignment, while the L variant uses alternate placement per mechanical design needs.

MP6652GJS-0000-P Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: SOT-23-6 Thin, Flat Leads

Packaging:: Tape & Reel (TR)

Product Status:: Active

Motor Type - Stepper:: Bipolar

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

Function:: Driver - Fully Integrated, Control and Power Stage

Output Configuration:: Half Bridge (2)

Interface:: PWM

Technology:: Power MOSFET

Step Resolution:: -

Applications:: Fan Motor Driver

Current - Output:: -

Voltage - Supply:: 3V ~ 18V

Voltage - Load:: 3V ~ 18V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TSOT-23-6-SL

MP6652GJS-0000-P FAQ

1.How can I place an order for MP6652GJS-0000-P through Aetrix?

Please submit a Request for Quotation (RFQ) for MP6652GJS-0000-P 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 MP6652GJS-0000-P reliable?

The price and inventory of MP6652GJS-0000-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP6652GJS-0000-P is usually 5 days.

3.What payment methods are accepted for MP6652GJS-0000-P?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP6652GJS-0000-P transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP6652GJS-0000-P?

MP6652GJS-0000-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP6652GJS-0000-P 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 MP6652GJS-0000-P?

For technical support, including MP6652GJS-0000-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP6652GJS-0000-P requirements.

6.How does Aetrix verify that MP6652GJS-0000-P is sourced from the original manufacturer or authorized distributors?

All MP6652GJS-0000-P 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 MP6652GJS-0000-P meets industry standards.

7.What is the process for return or replacement of MP6652GJS-0000-P?

All MP6652GJS-0000-P units undergo pre-shipment inspection (PSI). If there is an issue with MP6652GJS-0000-P, 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 MP6652GJS-0000-P part is unused and in its original packaging.

Return procedure for MP6652GJS-0000-P:

1.Submit a request within 90 days.

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

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