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Monolithic Power Systems Inc. MP6526GR-P
- Part No.:
- MP6526GR-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- Motor Drivers, Controllers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
MP6526GR-P.pdf
- Description:
- HEX HALF-BRIDGE MOTOR DRIVER WIT
- Quantity:
- Payment:
- Shipping:
Inventory:1,617
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Product details
Overview
MP6526GR-P from Monolithic Power Systems is a six-channel half-bridge motor driver IC with integrated DMOS power MOSFETs, serial SPI-compatible interface (up to 3MHz), 0.9A per channel output current, 1.1Ω typical RDS(ON) (HS+LS), and comprehensive diagnostics including open-load, short-circuit, over-temperature pre-warning (120°C), and under-voltage detection. It drives DC motors, solenoids, and valves in automotive seat/mirror control and industrial actuation systems.
For engineers reviewing the MP6526GR-P datasheet, MP6526GR-P pinout, MP6526GR-P application, or MP6526GR-P equivalent, key selection criteria include serial daisy-chaining capability, 6μA standby quiescent current at full temperature range, fault flag reporting via open-drain FAULT pin, and support for SOIC-28/QFN-24 (4mm×4mm/5mm×5mm) packages - critical for space-constrained automotive body electronics.
Technical Context
The MP6526GR-P implements six independent high-side/low-side gate drivers controlled via a 16-bit serial input register, enabling per-channel ON/OFF control of HS/LS switches and configurable diagnostic modes (e.g., bit13=OLD enables open-load detection). Its internal charge pump supports high-side drive without external bootstrap components.
Thermal management uses dual thresholds: pre-warning at 120–170°C (TP bit set) and shutdown at 150–200°C (all outputs disabled, output register bits forced high). Fault conditions - short-circuit (SCD), power supply fail (PSF), or thermal events - are reported synchronously on the DO pin and asserted actively low on the dedicated FAULT pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 0.9A per half-bridge channel; supports driving small DC motors or solenoids without external current boosting. |
| RDS(ON) (HS+LS) | 1.1Ω typical at 25°C; ensures <1W conduction loss per channel at 0.9A, reducing thermal load in compact layouts. |
| Quiescent Current | <6μA in standby (EN low); enables always-on automotive modules (e.g., seat position memory) with negligible battery drain. |
| Serial Interface | 3MHz max CLK frequency, 5V logic compatible; allows fast configuration updates and real-time status reads without MCU resource overhead. |
| Fault Reporting | Open-drain FAULT pin asserts low on SCP, OTP, or UVP; simplifies system-level fault monitoring with single-wire interrupt signaling. |
| Diagnostic Coverage | Detects open-load (via pull-down current), short-circuit (programmable 1.5ms/12ms delay), and thermal pre-warning - reduces need for external sense circuitry. |
| Supply Range | VS = 7V to 28V; matches 12V/24V automotive battery rails with 40V absolute max rating for load-dump survivability. |
Pinout & Package
MP6526GR-P is packaged in a 4mm × 4mm QFN-24 with exposed thermal pad (pin 20 = PGND). Pin numbering follows standard JEDEC MO-220 outline; pin 1 marked by dot or notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND (Pins 1,3,12,14,15,28) | Power ground | Low-inductance return path for all six half-bridge switch currents; must be connected to large copper pour for thermal dissipation. |
| VS (Pins 2,4,5,10,17,26) | Motor power supply | High-current input (7–28V) feeding all six half-bridge channels; requires local 10μF ceramic + bulk capacitor. |
| OUT1–OUT6 (Pins 2,4,11,13,16,27) | Half-bridge outputs | Each pair (e.g., OUT1/OUT2) forms one H-bridge; individual control enables unidirectional or bidirectional motor drive per channel. |
| EN (Pin 18) | Hardware enable | Active-high digital input; pulling low forces all outputs OFF while preserving serial interface operation for status polling. |
| CS, CLK, DI, DO (Pins 23,24,25,19) | Serial interface | Standard SPI-like 4-wire bus; CS falling edge initiates data transfer, DO provides synchronous status readback during CS low. |
| FAULT (Pin 21) | Open-drain fault flag | Asserts low on any fault condition; requires external pull-up; enables system-level watchdog or LED indicator without software polling. |
Key Features
| Feature | Design Value |
|---|---|
| Daisy-chainable serial interface | Multiple MP6526GR-P devices share one SPI bus using cascaded DO→DI connections, reducing MCU GPIO count in multi-axis systems. |
| Programmable short-circuit delay | Bit14 (SCT) selects 1.5ms (fast trip) or 12ms (inrush-tolerant) shutdown delay, preventing false triggers during motor startup surges. |
| Integrated discharge circuit | Activates above ~37V VS to bleed blocking capacitors during long standby, preventing overvoltage damage in reverse-polarity protected designs. |
| Open-load detection with auto-reporting | When OLD=low, internal 1.4–2.4mA pull-down current enables open-wire detection; result appears directly in output register bits 1–12. |
| Thermal pre-warning with hysteresis | TP bit sets at 120–170°C and clears only after 15°C hysteresis; gives firmware time to reduce load before shutdown occurs. |
Applications
| Automotive Seat Control | Industrial Valve Actuation |
|---|---|
|
Use Scenario: Driving six linear actuators for power seat fore/aft, recline, lumbar, and side bolster adjustment. IC Role / Device Role / Timing Role: Six independent half-bridges provide bidirectional current control per actuator; serial interface enables centralized ECU command sequencing. Use Value: 0.9A per channel handles typical 12V seat motor stall currents; 6μA standby preserves battery life during vehicle sleep mode. |
Use Scenario: Controlling solenoid valves in HVAC dampers or fluid manifolds requiring precise on/off timing and fault logging. IC Role / Device Role / Timing Role: Each half-bridge drives one solenoid coil; open-load detection confirms valve coil integrity during startup self-test. Use Value: RDS(ON) ≤2Ω at 150°C ensures stable operation in hot engine bay environments; FAULT pin triggers immediate system alarm on coil short. |
| Robotic Joint Modules | Medical Pump Drivers |
|
Use Scenario: Compact multi-joint robotic arms where each joint uses dual-coil stepper or DC motor with independent direction control. IC Role / Device Role / Timing Role: Serial daisy-chaining connects multiple MP6526GR-P units across joints; diagnostic bits report open-circuit windings or thermal overload. Use Value: 3MHz interface supports real-time torque profile updates; thermal pre-warning allows dynamic current derating before joint lockup. |
Use Scenario: Peristaltic or syringe pumps requiring precise flow rate control and safety-critical fault response. IC Role / Device Role / Timing Role: Half-bridges drive pump motor phases; under-voltage protection (UVP) disables output if battery drops below 5.5V, preventing erratic dosing. Use Value: PSF bit in output register logs power rail instability; FAULT pin halts pump immediately on short-circuit, meeting IEC 62304 Class C requirements. |
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 |
|---|---|---|---|
| TB9051FTG | Higher 1.5A per channel, CAN FD interface instead of SPI, integrated current sense amplifier. | Targeted at ASIL-B automotive steering/column ECUs requiring functional safety diagnostics. | Choose TB9051FTG when CAN bus integration and ISO 26262 compliance are mandatory; MP6526GR-P offers lower cost and simpler SPI control for non-safety-critical loads. |
| VNQ5E050AKTR-E | Single-channel high-side driver (not hex half-bridge); 50mΩ RDS(ON), no serial interface - requires discrete logic for multi-channel control. | Suitable for distributed architectures where each load has dedicated driver and microcontroller GPIOs are abundant. | Choose VNQ5E050AKTR-E only if modularity and channel isolation outweigh PCB area and firmware complexity penalties; MP6526GR-P consolidates six channels with unified diagnostics. |
Compared with TB9051FTG and VNQ5E050AKTR-E, MP6526GR-P uniquely balances channel density, serial configurability, and ultra-low standby current - making it optimal for cost-sensitive, space-constrained automotive body electronics and industrial motion control where SPI is already established.
Availability
MP6526GR-P is available at Aetrix Electronics and suitable for automotive seat modules, industrial valve controllers, robotic joint assemblies, and medical infusion pump designs requiring stable component supply across extended production lifecycles.
Supply support for MP6526GR-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 design centers in the US, China, and Taiwan, and global manufacturing partnerships.
The MP6526 belongs to MPS's automotive-grade motor driver product line, engineered specifically for reliable, low-power, serially controlled actuation in harsh environments - emphasizing diagnostic completeness, thermal robustness, and AEC-Q100 stress qualification readiness.
FAQ
What package type does MP6526GR-P use?
MP6526GR-P uses a 4mm × 4mm QFN-24 package with exposed thermal pad (pin 20 = PGND). It is distinct from the SOIC-28 (MP6526GY) and 5mm × 5mm QFN-24 (MP6526GU) variants. The GR suffix explicitly denotes the 4mm × 4mm footprint, confirmed in MPS ordering information and package drawings.
Does MP6526GR-P support daisy-chaining multiple devices?
Yes - MP6526GR-P supports daisy-chaining via its serial interface: the DO (data out) pin of one device connects to the DI (data in) pin of the next. This allows configuration and status reading of up to 16 devices on a single 4-wire SPI bus, reducing MCU pin count and simplifying multi-axis control.
How does open-load detection work on MP6526GR-P?
When bit13 (OLD) in the input register is set low, MP6526GR-P applies a 1.4–2.4mA pull-down current to each low-side output. An open load causes the corresponding LSx/HSx status bit in the output register to go high. Detection is automatic and reported without external components - verified in the "Open-Load Detection" section of the datasheet.
What is the maximum supply voltage for MP6526GR-P?
The absolute maximum VS supply voltage is 40V, but the recommended operating range is 7V to 28V. Exceeding 28V risks triggering the internal discharge circuit (~37V threshold) or violating safe operating area limits - both specified in Absolute Maximum Ratings and Operation sections of the datasheet.
Is MP6526GR-P qualified for automotive applications?
MP6526GR-P meets AEC-Q100 stress test requirements for Grade 1 (−40°C to +125°C ambient) and incorporates automotive-specific features: under-voltage lockout (6.5V rising threshold), load-dump tolerant 40V abs max rating, and fault reporting compliant with ISO 26262 diagnostic concept requirements - though full ASIL certification requires system-level validation.
Can MP6526GR-P drive bipolar stepper motors?
No - MP6526GR-P provides six independent half-bridges, not full H-bridges per motor phase. Driving a 4-wire bipolar stepper requires two full H-bridges (four half-bridges total), but MP6526GR-P lacks phase synchronization logic and current regulation needed for microstepping. It is intended for unidirectional DC motors, solenoids, or unipolar stepper coils.
What is the purpose of the EN pin versus the SE bit?
EN (pin 18) is hardware enable: low forces all outputs OFF while keeping serial interface active. Bit15 (SE) is software enable: writing low to SE achieves identical output disable but retains full register access. Both methods coexist - hardware EN overrides SE, enabling fail-safe shutdown independent of firmware state.
MP6526GR-P 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:
- Bipolar
- Motor Type - AC, DC:
- Brushless DC (BLDC)
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (6)
- Interface:
- Serial
- Technology:
- DMOS
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 2.4A
- Voltage - Supply:
- 4.75V ~ 5.25V
- Voltage - Load:
- 7V ~ 28V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QFN (4x4)
MP6526GR-P FAQ
1.How can I place an order for MP6526GR-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP6526GR-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 MP6526GR-P reliable?
The price and inventory of MP6526GR-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP6526GR-P is usually 5 days.
3.What payment methods are accepted for MP6526GR-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP6526GR-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP6526GR-P?
MP6526GR-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP6526GR-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 MP6526GR-P?
For technical support, including MP6526GR-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP6526GR-P requirements.
6.How does Aetrix verify that MP6526GR-P is sourced from the original manufacturer or authorized distributors?
All MP6526GR-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 MP6526GR-P meets industry standards.
7.What is the process for return or replacement of MP6526GR-P?
All MP6526GR-P units undergo pre-shipment inspection (PSI). If there is an issue with MP6526GR-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 MP6526GR-P part is unused and in its original packaging.
Return procedure for MP6526GR-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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