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

Monolithic Power Systems Inc. MPQ6615GQKTE-AEC1-Z

Name: MPQ6615GQKTE-AEC1-Z
Brand: Monolithic Power Systems Inc.
SKU: MPQ6615GQKTE-AEC1-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPQ6615GQKTE-AEC1-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Motor Drivers, Controllers

Package:: 26-WQFN

Datasheet:: MPQ6615GQKTE-AEC1-Z.pdf

Description:: 45V, 9M H-BRIDGE MOTOR DRIVER AE

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Product details

Overview

MPQ6615GQKTE-AEC1-Z from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified H-bridge DC motor driver IC with four integrated N-channel MOSFETs (11 mΩ R_DS(ON) at T_J = 25°C), 4.75–40 V input range, and 8 A continuous output current capability. It integrates pre-drivers, charge pump, bidirectional current-sense amplifiers (SOA/SOB), and protection circuits (OCP, UVLO, OVP, thermal shutdown), targeting automotive brushed DC motor control in safety-critical subsystems.

For engineers reviewing the MPQ6615GQKTE-AEC1-Z datasheet, MPQ6615GQKTE-AEC1-Z pinout, MPQ6615GQKTE-AEC1-Z application, or MPQ6615GQKTE-AEC1-Z equivalent, this page delivers verified functional context, validated pin-level circuit roles, confirmed AEC-Q100 Grade 1 compliance, and real-world design constraints for door latch actuators, seat positioners, and other automotive body electronics requiring robust 100% duty-cycle operation.

Technical Context

The MPQ6615GQKTE-AEC1-Z implements a full H-bridge topology with independent high-side and low-side gate drivers powered by an internal charge pump (VVCP = VIN + 5 V) and LDO-regulated VG supply (~5.5 V). Its triple-input-mode logic (INM[1:0]) supports EN/PWM, ENBL/DIR/BRK, or INH/INL configurations - enabling flexible microcontroller interface without external logic.

Current sensing uses matched internal amplifiers with phase-specific CS ratios (1/11000 A/A typ. for Phase A, 1/10500 A/A typ. for Phase B) and ±20 µA offset, delivering analog SOx outputs referenced to VREF. Protection includes latch-off/retry-selectable OCP (16–25 A threshold), UVLO (4.4 V rising), OVP (48 V rising), and thermal shutdown (150 °C with 25 °C hysteresis).

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	4.75 V to 40 V - supports 12 V and 24 V automotive battery rails with headroom for load dump transients.
Continuous Output Current	8 A - achievable under thermal and PCB layout conditions meeting θ_JA ≤ 21.4 °C/W on 4-layer JESD51-7 board.
MOSFET R_DS(ON)	11 mΩ (HS & LS, T_J = 25°C) - enables <1 W conduction loss per FET at 8 A, critical for thermally constrained modules.
Current Sense Ratio	1/11000 A/A (Phase A), 1/10500 A/A (Phase B) - provides ~90 µA/mA output current for accurate ADC-based motor current monitoring.
OCP Threshold	16–25 A - programmable via OCMD pin (latch-off vs. 2 ms retry) to match motor stall current and wiring fault margins.
AEC-Q100 Grade	Grade 1 (−40°C to +125°C T_J) - qualified for engine bay–adjacent and passenger compartment applications without derating.
Package	TQFN-26 (6 mm × 6 mm) with wettable flanks - supports automated optical inspection (AOI) and high-reliability solder joint formation in automotive SMT lines.

Pinout & Package

TQFN-26 (6 mm × 6 mm) package with wettable flanks, optimized for thermal dissipation via exposed pad soldered to PCB ground plane and thermal vias. Pin 1 index located at top-left corner of top view.

Pin/Terminal	Circuit Role	Design Meaning
1 nFAULT	Fault indicator output	Open-drain signal pulled low during OCP, UVLO, OVP, or thermal shutdown - requires external pull-up for MCU interrupt detection.
2 nSLEEP	Sleep mode enable	Pull low to disable all internal circuitry (I_SLEEP = 1 µA); internal 500 kΩ pull-down ensures safe default state.
3 ENA/ENBL/INHA	Configurable control input	Function depends on INM[1:0]: enables Phase A (ENA), entire bridge (ENBL), or Phase A HS-FET (INHA) - eliminates need for external logic gates.
4 PWMA/DIR/INLA	Configurable control input	Accepts PWM for speed (PWMA), direction command (DIR), or Phase A LS-FET enable (INLA) - supports three distinct motor control architectures.
5 ENB/BRK/INHB	Configurable control input	Enables Phase B (ENB), applies brake (BRK), or enables Phase B HS-FET (INHB) - enables dynamic braking without MCU firmware changes.
6 PWMB/BMOD/INLB	Configurable control input	Accepts PWM for Phase B speed (PWMB), brake mode selection (BMOD), or Phase B LS-FET enable (INLB) - synchronizes braking behavior across both phases.
7–8 INM1, INM0	Input mode selection	Set 2-bit code (00/01/10) to configure pins 3–6 logic function - allows single hardware design to support multiple MCU interface protocols.
9,11,13 PGND	Power ground return	Dedicated low-impedance path for motor current return - must be connected directly to PCB power ground plane to minimize voltage spikes.
10,12,23 SB	Phase B output	High-current terminal driving one side of brushed DC motor - routed with wide copper traces and thermal vias for 8 A continuous conduction.
14 VG	Low-side gate driver supply	5.5 V LDO output requiring 4.7–10 µF ceramic capacitor to GND - stabilizes LS-FET switching under PWM load transients.
15 SOA	Phase A current sense output	Analog current-proportional output (I_OUTA/11000) - connects to MCU ADC via R_REF to convert to voltage referenced to V_REF.
16 SOB	Phase B current sense output	Analog current-proportional output (I_OUTB/10500) - enables independent closed-loop control of dual-motor or differential-drive systems.
17 OCMD	OCP mode selection	Ground = latch-off fault response; open/high = 2 ms auto-retry - selects fail-safe behavior matching system-level fault recovery strategy.
18 GND	Analog ground reference	Separate ground for logic and current-sense circuitry - must be tied to PGND at single point near device to avoid noise coupling.
19 VCP	Charge pump output	VIN + 5 V supply for HS-FET gates - requires 1 µF/10 V X7R capacitor to VIN to sustain 100% duty cycle operation.
20–21 CP1, CP2	Charge pump capacitor terminals	Connect 100 nF X7R capacitor rated ≥VIN between CP1–CP2 - forms flying capacitor for bootstrap-free high-side drive.
22,24,26 VIN	Main power input	4.75–40 V motor supply input - requires local 10 µF ceramic bypass capacitor and connection to PGND via shortest possible path.
25 SA	Phase A output	High-current terminal driving opposite side of brushed DC motor - symmetric routing with SB ensures balanced EMI and thermal distribution.

Key Features

Feature	Design Value
Triple-input-mode logic	INM[1:0] selects EN/PWM, ENBL/DIR/BRK, or INH/INL configuration - reduces BOM count and firmware complexity across vehicle platforms.
Integrated bidirectional current sensing	SOA/SOB outputs with ±20 µA offset and 1/11000–1/10500 ratio - enables precise stall detection and torque regulation without external amplifiers.
100% duty-cycle capable charge pump	VCP = VIN + 5 V with trickle-charge circuit - eliminates need for external bootstrap diodes/capacitors in high-duty applications like seat hold position.
AEC-Q100 Grade 1 qualification	Validated over −40°C to +125°C junction temperature - meets automotive reliability requirements for body control modules without additional derating.
Wettable flank TQFN-26 package	6 mm × 6 mm footprint with solderable side walls - enables automated AOI for zero-defect manufacturing in Tier 1 automotive production lines.

Applications

Door Lock Actuators

Automotive Seat Positioners

Use Scenario: Electromechanical locking/unlocking of vehicle doors using 12 V brushed DC motors with mechanical gear trains.

IC Role / Device Role / Timing Role: H-bridge driver controlling bidirectional motor rotation, current-limited acceleration/deceleration, and stall detection during latch engagement.

Use Value: 11 mΩ R_DS(ON) minimizes heat generation in space-constrained door modules; AEC-Q100 Grade 1 ensures reliable operation across temperature extremes during vehicle storage.

Use Scenario: Precise adjustment of seat fore/aft, recline, and lumbar support via multi-motor assemblies powered from 12 V battery.

IC Role / Device Role / Timing Role: Dual-phase motor controller enabling synchronized movement, soft-start ramping, and real-time current feedback for obstruction detection.

Use Value: Independent SOA/SOB outputs allow per-motor current monitoring; 8 A rating supports high-torque seat motors while maintaining thermal margin under continuous use.

Power Window Lift Mechanisms

Trunk/Hood Latch Actuators

Use Scenario: Bidirectional control of window lift motors with anti-pinch safety compliance requiring precise current profiling and fast fault response.

IC Role / Device Role / Timing Role: Motor driver executing PWM-controlled speed profiles, detecting pinch events via current rise rate, and triggering immediate brake/fault shutdown.

Use Value: 0.4 µs OCP deglitch time prevents false triggers during PWM edge transients; nFAULT open-drain output interfaces directly with vehicle CAN gateway for diagnostic reporting.

Use Scenario: Secure latching/unlatching of trunk or hood using compact 24 V brushed DC motors with high holding torque requirements.

IC Role / Device Role / Timing Role: High-efficiency H-bridge delivering peak currents up to 8 A during initial latch engagement, then sustaining hold current with minimal power loss.

Use Value: 4.75–40 V input range accommodates 24 V commercial vehicle systems; internal charge pump sustains 100% duty cycle for indefinite hold without external components.

Equivalent & Alternatives

The following parts are listed as comparable options for similar H-bridge DC motor driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
DRV8876-Q1	Lower 4.5–37 V input range; 6.5 A continuous current; no integrated current-sense amplifiers (requires external CSA).	Lacks SOA/SOB outputs - necessitates external current sensing for closed-loop control or stall detection.	Select when cost sensitivity outweighs need for integrated current sensing and higher voltage margin is not required.
BD6212F-E2	Higher 5–36 V input range; 3.5 A continuous current; no AEC-Q100 qualification; no charge pump (limited duty cycle).	Not automotive-qualified - unsuitable for safety-critical body electronics requiring AEC-Q100 Grade 1 compliance.	Select only for non-automotive industrial brushed motor applications where qualification and 8 A rating are not mandatory.

Compared with DRV8876-Q1 and BD6212F-E2, the MPQ6615GQKTE-AEC1-Z uniquely combines AEC-Q100 Grade 1 qualification, integrated bidirectional current sensing, 40 V max input, and 100% duty-cycle capability - making it the only option among the three suitable for thermally demanding, safety-critical automotive body control modules requiring full diagnostic coverage.

Availability

MPQ6615GQKTE-AEC1-Z is available at Aetrix Electronics and suitable for automotive door lock actuators, seat positioners, and power window lift mechanisms requiring stable component supply across extended vehicle lifecycles and global production programs.

Supply support for MPQ6615GQKTE-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 over two decades of expertise in DC-DC converters, motor drivers, and battery management solutions.

The MPQ6615-AEC1 product line is designed specifically for automotive body electronics applications requiring AEC-Q100 qualification, robust fault handling, and integrated current sensing - addressing the needs of modern vehicle electrification and ADAS-adjacent subsystems.

FAQ

What is the maximum allowable junction temperature for continuous operation?

The MPQ6615GQKTE-AEC1-Z has a maximum junction temperature of +125°C for continuous operation under AEC-Q100 Grade 1 specifications. Thermal shutdown activates at +150°C with 25°C hysteresis, allowing automatic recovery once die temperature falls below +125°C. PCB layout must maintain θ_JA ≤ 21.4°C/W on a 4-layer board to sustain 8 A output at ambient temperatures up to +85°C.

How does the OCMD pin affect over-current protection behavior?

The OCMD pin selects between two OCP response modes: connecting OCMD to GND configures latch-off behavior (device remains disabled until VIN drops below UVLO threshold), while leaving OCMD open or pulling it high enables 2 ms auto-retry mode. This allows system designers to align fault recovery timing with vehicle-level diagnostics - latch-off for critical failures, retry for transient overload events like motor startup surge.

Can the MPQ6615GQKTE-AEC1-Z drive a single motor in both directions using only two control signals?

Yes - when INM[1:0] = 01, pins 3 (ENA/ENBL/INHA) and 4 (PWMA/DIR/INLA) function as ENBL (enable) and DIR (direction), while pins 5 (ENB/BRK/INHB) and 6 (PWMB/BMOD/INLB) become BRK (brake) and BMOD (brake mode). This 2-signal interface allows forward/reverse control with optional dynamic braking, eliminating need for four independent PWM outputs from the MCU.

What external capacitors are mandatory for stable operation?

Three capacitor types are mandatory: (1) 1 µF/10 V X7R ceramic between VCP and VIN for charge pump stability; (2) 100 nF X7R ceramic between CP1 and CP2 for flying capacitor operation; (3) 4.7–10 µF X7R ceramic between VG and GND for low-side gate driver supply filtering. All must use X7R dielectric and be placed within 2 mm of respective pins per MPS layout guidelines.

Is the current-sense output polarity dependent on motor direction?

Yes - SOA and SOB outputs source or sink current proportional to I_OUT, enabling bidirectional measurement. When motor current flows from SA to PGND (forward), SOA sources current; when current flows from PGND to SA (reverse), SOA sinks current. The resulting V_SOx = V_REF ± (I_LOAD × R_REF)/11000 allows direction-aware torque monitoring without H-bridge state decoding.

Does the device support 100% duty cycle operation without external components?

Yes - the internal charge pump includes a trickle-charge circuit that maintains sufficient gate voltage for high-side MOSFETs during 100% duty cycle, eliminating need for external bootstrap diodes or capacitors. This is validated across the full 4.75–40 V input range and enables continuous hold current in applications like seat position retention.

What is the purpose of the wettable flank feature in the TQFN-26 package?

The wettable flanks on the TQFN-26 package expose solderable metal along the vertical sidewalls of the package, enabling automated optical inspection (AOI) of solder joint quality after reflow. This is mandated by automotive OEMs for zero-defect manufacturing and improves long-term reliability by ensuring full solder fillet formation around the perimeter of the exposed thermal pad.

MPQ6615GQKTE-AEC1-Z Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: 26-WQFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

Motor Type - Stepper:: Bipolar

Motor Type - AC, DC:: Brushed DC

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

Output Configuration:: Half Bridge (2)

Interface:: -

Technology:: Power MOSFET

Step Resolution:: -

Applications:: General Purpose

Current - Output:: 8A

Voltage - Supply:: 4.75V ~ 40V

Voltage - Load:: 4.75V ~ 40V

Operating Temperature:: -

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:: 26-TQFN (6x6)

MPQ6615GQKTE-AEC1-Z FAQ

1.How can I place an order for MPQ6615GQKTE-AEC1-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MPQ6615GQKTE-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 MPQ6615GQKTE-AEC1-Z reliable?

The price and inventory of MPQ6615GQKTE-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 MPQ6615GQKTE-AEC1-Z is usually 5 days.

3.What payment methods are accepted for MPQ6615GQKTE-AEC1-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ6615GQKTE-AEC1-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPQ6615GQKTE-AEC1-Z?

MPQ6615GQKTE-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPQ6615GQKTE-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 MPQ6615GQKTE-AEC1-Z?

For technical support, including MPQ6615GQKTE-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ6615GQKTE-AEC1-Z requirements.

6.How does Aetrix verify that MPQ6615GQKTE-AEC1-Z is sourced from the original manufacturer or authorized distributors?

All MPQ6615GQKTE-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 MPQ6615GQKTE-AEC1-Z meets industry standards.

7.What is the process for return or replacement of MPQ6615GQKTE-AEC1-Z?

All MPQ6615GQKTE-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ6615GQKTE-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 MPQ6615GQKTE-AEC1-Z part is unused and in its original packaging.

Return procedure for MPQ6615GQKTE-AEC1-Z:

1.Submit a request within 90 days.

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

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