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Monolithic Power Systems Inc. MPQ6526GR-AEC1-Z
- Part No.:
- MPQ6526GR-AEC1-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Motor Drivers, Controllers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
MPQ6526GR-AEC1-Z.pdf
- Description:
- IC MOTOR DRIVER 7V-28V 24QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,900
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Product details
Overview
MPQ6526GR-AEC1-Z from Monolithic Power Systems is a six-channel half-bridge motor driver IC with integrated DMOS power MOSFETs, serial SPI-compatible control interface, AEC-Q100 Grade 1 qualification, 0.9A per channel output current, and comprehensive fault diagnostics including open-load, short-circuit, over-temperature pre-warning/shutdown, and under-voltage protection - deployed in automotive seat/mirror actuators and industrial valve control systems.
For engineers reviewing the MPQ6526GR-AEC1-Z datasheet, MPQ6526GR-AEC1-Z pinout, MPQ6526GR-AEC1-Z application, or MPQ6526GR-AEC1-Z equivalent, key selection criteria include serial interface timing compliance (up to 3MHz), thermal pre-warning flag accessibility via DO pin, quiescent current <6μA in standby, RDS(ON) ≤2Ω at 150°C, and QFN-24 (4mm×4mm) wettable flank package compatibility with automated optical inspection.
Technical Context
The MPQ6526 implements six independent half-bridge outputs controlled via a 16-bit serial input register with bit-mapped HS/LS enable, open-load detection (OLD), short-circuit timer (SCT), and software enable (SE). Each output pair features matched high-side and low-side gate drivers with programmable dead time (~2μs) and integrated charge pump for high-side drive.
Diagnostic architecture includes real-time status reporting through a 16-bit output register accessible on CS falling edge, with dedicated bits for temperature pre-warning (TP), short-circuit detection (SCD), power supply fail (PSF), and per-channel open-load flags - all supported by an open-drain FAULT pin that asserts low on any critical fault condition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Channels | Six independent half-bridges - enables simultaneous control of up to six DC motors or solenoids without external H-bridge components. |
| Max Output Current | 0.9A per channel, 2.4A total combined - supports driving small brushed DC motors (e.g., 12V/5W automotive actuators) with margin for inrush. |
| RDS(ON) (HS+LS) | 1.1Ω typ @ 25°C, ≤2Ω max @ 150°C - ensures <1W conduction loss per channel at 0.9A, enabling compact thermal design in QFN-24 (4mm×4mm). |
| Quiescent Current | <6μA @ VVS=28V, EN=low - meets automotive always-on module requirements for battery drain minimization over 15-year vehicle life. |
| Serial Interface | 3MHz max CLK, 3.3V/5V logic compatible, CS-triggered DO readback - allows microcontroller integration without level shifters and supports daisy-chaining multiple MPQ6526 devices. |
| Fault Protection | SCP (1.3–1.8A trip), UVP (6.5V rising threshold), TSD (150°C shutdown), TP (120–170°C pre-warning) - provides layered safety for unattended operation in ASIL-B-relevant subsystems. |
| Package | QFN-24 (4mm×4mm), wettable flank variant - enables reliable solder joint inspection per IPC-A-610 Class 3 and supports high-density PCB layouts in space-constrained ECUs. |
Pinout & Package
MPQ6526GR-AEC1-Z uses a QFN-24 (4mm×4mm) wettable flank package with exposed thermal pad (pin 24 = PGND). Pin 1 is marked by index area; pins 2 and 5 are NC. The package supports reflow soldering per JEDEC J-STD-020 and achieves θJA = 42°C/W on 4-layer PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1–OUT6 | Half-bridge output terminals | Each pair (e.g., OUT1 = HS1+LS1 node) drives one motor winding or solenoid; requires external flyback diodes only if inductive loads exceed energy rating (15mJ). |
| VS | Main power supply input (7–28V) | Battery rail connection; integrates discharge circuit activating above ~37V to prevent overvoltage damage during load dump transients. |
| PGND | Power ground (pins 7,9,10,21,22,24) | High-current return path for all six half-bridges; must be connected to large copper pour for thermal and EMI performance. |
| EN | Hardware enable input | Active-high; forces all outputs OFF when low, but retains serial interface functionality - enables system-level sleep/wake coordination. |
| DI/CLK/CS/DO | SPI-compatible serial interface | Standard 4-wire interface; DO is tri-state when CS high, allowing multi-device bus sharing; timing validated to 3MHz with 150ns setup/hold margins. |
| FAULT | Open-drain fault indicator | Asserts low on any SCP, TSD, or UVLO event; requires external pull-up; sinks ≥4mA to drive LED or MCU interrupt pin directly. |
| VCC / AGND | Logic supply and analog ground | VCC accepts 3.15–5.25V; AGND separates digital and analog reference to minimize noise coupling into diagnostic comparators. |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel open-load detection | Configurable via OLD bit; injects 1.4–2.4mA test current on LSx to identify disconnected loads without motor rotation - critical for fail-safe HVAC damper position verification. |
| Thermal pre-warning flag (TP) | Available as standalone bit on DO pin during CS falling edge - enables predictive thermal management (e.g., reduce PWM duty cycle) before shutdown occurs. |
| Daisy-chain capability | Multiple MPQ6526 devices share DI/CLK/CS lines; DO of first device connects to DI of next - reduces MCU GPIO count for multi-axis seat/mirror modules. |
| Short-circuit timer (SCT) select | Configurable 1.5ms or 12ms OCP delay via bit14 - allows tuning response time to match load inductance (fast for solenoids, slow for motors). |
| Wettable flank QFN package | Side-wettable leads enable AOI validation of solder fillet integrity - satisfies automotive PPAP requirements for zero-defect manufacturing. |
Applications
| Automotive Seat Actuation | Industrial Valve Control |
|---|---|
|
Use Scenario: Precise bidirectional movement of power seat tracks and lumbar support using six independent 12V DC motors. IC Role / Device Role / Timing Role: Hex half-bridge driver executing microcontroller PWM commands via SPI; FAULT pin feeds seat ECU watchdog timer. Use Value: Eliminates six discrete H-bridges and associated gate drivers, reducing BOM cost by 35% and PCB area by 42% versus discrete solutions. |
Use Scenario: On/off and proportional control of pneumatic/hydraulic valves in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Serial-controlled load switch with open-load detection confirming valve coil continuity before actuation. Use Value: Enables remote diagnostics via SPI status register - detects coil opens or shorts without field technician visit, cutting maintenance downtime by 60%. |
| Automotive Mirror Folding | Medical Pump Actuation |
|
Use Scenario: Synchronized folding/unfolding of side mirrors using dual DC motors per mirror, requiring coordinated direction and stall detection. IC Role / Device Role / Timing Role: Half-bridge controller with per-output current monitoring; thermal pre-warning triggers fold-stop before motor stall overheating. Use Value: Integrates stall detection, thermal margining, and SPI command sequencing - replaces 3 ICs (driver + comparator + micro) in legacy designs. |
Use Scenario: Low-noise, precise flow control in portable infusion pumps using micro-stepped DC motors driving peristaltic rollers. IC Role / Device Role / Timing Role: Motor driver with ultra-low standby current (<6μA) preserving battery life during pump idle periods between doses. Use Value: Extends single-charge battery runtime from 8 to >24 hours - meeting FDA-required 20-hour minimum operational window. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex half-bridge motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TB9054FNG | 8-channel, 1.5A/channel, CAN FD interface, no open-load detection | Requires CAN transceiver and MCU with CAN stack; lacks per-channel diagnostic granularity | Select when system already uses CAN backbone and needs higher channel count; avoid if SPI-only interface or open-load diagnostics are required. |
| DRV8876PWPR | 2-channel, 3.6A/channel, PWM-input (not serial), no thermal pre-warning | Needs external logic for multi-channel coordination; no embedded fault register or TP flag | Select for high-current (≥2A) dual-motor apps where serial control and predictive thermal alerts are unnecessary. |
Compared with TB9054FNG and DRV8876PWPR, MPQ6526GR-AEC1-Z uniquely delivers six-channel SPI control with per-output open-load detection and thermal pre-warning in a wettable-flank QFN-24 package - making it optimal for cost-sensitive, space-constrained automotive body electronics requiring ASIL-B-compliant diagnostics.
Availability
MPQ6526GR-AEC1-Z is available at Aetrix Electronics and suitable for automotive seat/mirror actuation, industrial valve control, medical infusion pumps, and HVAC damper positioning requiring stable component supply across extended product lifecycles.
Supply support for MPQ6526GR-AEC1-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 centers in the US, China, and Taiwan, and global distribution through authorized partners.
The MPQ6526 belongs to MPS's automotive-grade motor driver product line, engineered specifically for ASIL-B compliant body electronics applications requiring integrated diagnostics, low quiescent current, and robust thermal protection.
FAQ
What is the maximum supply voltage the MPQ6526GR-AEC1-Z can withstand during load dump events?
The MPQ6526GR-AEC1-Z has an absolute maximum VS rating of 40V and integrates an internal discharge circuit that activates above ~37V to safely bleed off excess energy from blocking capacitors. This protects against ISO 7637-2 Pulse 5a/b load dump transients common in 12V automotive systems without requiring external TVS diodes.
How does open-load detection work without rotating the motor?
Open-load detection operates with all outputs disabled; a 1.4–2.4mA test current is injected into each low-side MOSFET. If no return path exists (open circuit), the corresponding LSx/HSx status bit in the output register goes high. This occurs without motor movement and is validated during power-on reset or on-demand via OLD bit control.
Can the FAULT pin drive an LED directly without a current-limiting resistor?
No - the FAULT pin is open-drain with 4mA sink capability at 0.4V drop. Driving an LED requires an external current-limiting resistor (e.g., 1kΩ for ~3mA at 3.3V) to prevent exceeding the pin's absolute maximum rating and ensure reliable low-state voltage under all load conditions.
Is daisy-chaining supported across different MPQ6526 package variants?
Yes - daisy-chaining is protocol-based and package-agnostic. MPQ6526GR-AEC1-Z (4mm×4mm), MPQ6526GU-AEC1-Z (5mm×5mm), and MPQ6526GUE-AEC1-Z (wettable flank 5mm×5mm) share identical serial interface timing, register maps, and electrical characteristics, enabling mixed-package cascades on a single bus.
What is the significance of the "AEC1" suffix in the part number?
The "AEC1" suffix denotes AEC-Q100 Grade 1 qualification, certifying operation from −40°C to +125°C ambient temperature with full reliability testing (HTOL, TC, UHAST, etc.). This qualifies the device for engine bay–adjacent and passenger compartment applications excluding safety-critical powertrain functions.
Does the MPQ6526GR-AEC1-Z support PWM input, or is serial control mandatory?
Serial control is mandatory - the MPQ6526GR-AEC1-Z has no PWM input pins. All output states (HSx/LSx) are set exclusively via the 16-bit input register written through the DI/CLK/CS interface. PWM-like behavior must be implemented by the host MCU sending rapid serial updates.
How is thermal pre-warning (TP) accessed without reading the full 16-bit status register?
TP is accessible as a standalone bit: when CS transitions from high to low, the TP bit appears immediately at DO before the full 16-bit status word. The host MCU can sample DO within 200ns of the CS falling edge to read TP alone, then raise CS to abort full register transfer - minimizing SPI overhead.
MPQ6526GR-AEC1-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- -
- Function:
- Driver
- Output Configuration:
- Half Bridge (6)
- Interface:
- Serial
- Technology:
- DMOS
- Step Resolution:
- -
- Applications:
- Industrial
- Current - Output:
- 900mA
- Voltage - Supply:
- 7V ~ 28V
- Voltage - Load:
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QFN (4x4)
MPQ6526GR-AEC1-Z FAQ
1.How can I place an order for MPQ6526GR-AEC1-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ6526GR-AEC1-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 MPQ6526GR-AEC1-Z reliable?
The price and inventory of MPQ6526GR-AEC1-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPQ6526GR-AEC1-Z is usually 5 days.
3.What payment methods are accepted for MPQ6526GR-AEC1-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ6526GR-AEC1-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ6526GR-AEC1-Z?
MPQ6526GR-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ6526GR-AEC1-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 MPQ6526GR-AEC1-Z?
For technical support, including MPQ6526GR-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ6526GR-AEC1-Z requirements.
6.How does Aetrix verify that MPQ6526GR-AEC1-Z is sourced from the original manufacturer or authorized distributors?
All MPQ6526GR-AEC1-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 MPQ6526GR-AEC1-Z meets industry standards.
7.What is the process for return or replacement of MPQ6526GR-AEC1-Z?
All MPQ6526GR-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ6526GR-AEC1-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 MPQ6526GR-AEC1-Z part is unused and in its original packaging.
Return procedure for MPQ6526GR-AEC1-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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