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

Monolithic Power Systems Inc. MPQ6628GF-AEC1-Z

Name: MPQ6628GF-AEC1-Z
Brand: Monolithic Power Systems Inc.
SKU: MPQ6628GF-AEC1-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPQ6628GF-AEC1-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Motor Drivers, Controllers

Package:: 28-TSSOP (0.173", 4.40mm Width) Exposed Pad

Datasheet:: MPQ6628GF-AEC1-Z.pdf

Description:: 40V, 0.8A, OCTAL HALF-BRIDGE MOT

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Product details

Overview

MPQ6628GF-AEC1-Z from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified octal half-bridge motor driver IC with integrated DMOS power MOSFETs, operating from 5.5V to 40V input and delivering up to 0.8A per channel. It features serial SPI control (up to 5MHz), on-chip diagnostics (open-load, over-current, thermal warning/shutdown, UV/OV lockout), and low 5μA quiescent current in standby mode. It is used in automotive body control modules for driving DC motors, solenoids, and valves.

For engineers reviewing the MPQ6628GF-AEC1-Z datasheet, MPQ6628GF-AEC1-Z pinout, MPQ6628GF-AEC1-Z application, or MPQ6628GF-AEC1-Z equivalent, key selection criteria include its AEC-Q100 qualification, TSSOP-28EP package with exposed pad, 1.3Ω typical R_DS(ON) (HS+LS), diagnostic register architecture, and dual VS supply domains (VS1/VS2) enabling independent power routing for grouped outputs.

Technical Context

The MPQ6628 implements eight independent half-bridge output stages, each with high-side and low-side DMOS FETs sharing a common source (LS) or drain (HS) configuration. Its serial interface uses standard SPI protocol with CS-active-low framing, 16-bit command/status registers, and configurable channel grouping (HB[6:1] vs HB[8:7]) via CH_SEL bit.

Diagnostic functionality is hardware-embedded: open-load detection operates during LS conduction using 1–45mA threshold current and 200–600μs delay; thermal pre-warning triggers at 120–170°C with 20°C hysteresis; over-current protection activates within 10–50μs at 1–2.5A; and dual supply monitoring covers both VS1 and VS2 rails with independent UVLO (4.5V) and OVLO (36V) thresholds.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	5.5V to 40V - supports 12V/24V automotive battery systems with transient tolerance up to 45V absolute max.
Output Current per Channel	0.8A continuous - sufficient for small DC motors, fuel injectors, and HVAC actuators in passenger vehicles.
R_DS(ON) (HS + LS)	1.3Ω typical - enables <1W conduction loss at 0.8A, reducing thermal load in TSSOP-28EP package.
Quiescent Current (Standby)	1–5μA - minimizes battery drain during vehicle sleep mode, critical for always-on ECU compliance.
SPI Clock Frequency	Up to 5MHz - allows fast reconfiguration of all 8 channels in <3.2μs per 16-bit frame, supporting real-time torque modulation.
Thermal Pre-warning Threshold	120–170°C - provides early system-level thermal management signal before hard shutdown at 150–200°C.
AEC-Q100 Grade	Grade 1 (−40°C to +125°C T_A) - qualified for under-hood and cabin applications without derating.

Pinout & Package

TSSOP-28EP package with 0.65mm pitch and exposed thermal pad on bottom for enhanced heat dissipation in automotive environments.

Pin/Terminal	Circuit Role	Design Meaning
OUT1–OUT8	Half-bridge output terminals	Eight independent high-voltage, high-current drive nodes; OUT1/2/5/7/8 powered by VS1, OUT3/4/6 by VS2 - enables domain-isolated power routing.
VS1 / VS2	Power supply inputs	VS1 powers outputs 1,2,5,7,8 and internal charge pump; VS2 powers outputs 3,4,6 - allows separate battery/supply domains for fault containment.
DI / DO / CLK / CS	SPI interface signals	Standard 4-wire SPI with tri-state DO; CS active-low framing; supports daisy-chaining via DO-to-DI connection across multiple MPQ6628 devices.
EN	Enable control input	Pull-low disables all outputs and resets SPI registers; internal 125kΩ pull-down ensures safe default state during MCU boot.
GND (Pins 2,13,16,27)	Ground connections	Four dedicated GND pins reduce ground bounce and improve noise immunity in high-di/dt switching.
VCC	Logic supply	3.15–5.25V tolerant - interoperable with both 3.3V and 5V microcontrollers without level-shifting.

Key Features

Feature	Design Value
Integrated Diagnostic Registers	16-bit readback status per channel group (HB[6:1] or HB[8:7]) includes latched OC, OLD, PSF, TW, and real-time HBCNF/SHBEN states - eliminates need for external sense resistors or comparators.
Dual VS Supply Domains	VS1 and VS2 pins enable physical separation of power paths - improves functional safety by limiting fault propagation between output groups.
Open-Load Detection with Shutdown	Configurable via OLSD_EN bit; triggers automatic output disable upon detection (1–45mA threshold, 200–600μs delay) - prevents false actuation in broken-wire scenarios.
Thermal Pre-warning + Shutdown	Dual thresholds (TJW = 120–170°C, TJSD = 150–200°C) with 20°C hysteresis - allows host MCU to throttle load before catastrophic shutdown.
Low Standby Current	1–5μA quiescent draw with EN = low - meets ISO 16750-2 requirements for parked vehicle battery drain.

Applications

Automotive Body Control Module

Automotive HVAC Actuator Drive

Use Scenario: Controlling door locks, mirror adjusters, and seat positioners in modern BCMs.

IC Role / Device Role / Timing Role: Octal half-bridge driver executing discrete on/off and direction commands via SPI from 32-bit ARM-based BCM MCU.

Use Value: Single-chip replacement for eight discrete high-side switches; integrated diagnostics reduce BOM count and enable ASIL-B–compatible fault reporting.

Use Scenario: Driving bi-directional damper motors in climate control systems with position feedback.

IC Role / Device Role / Timing Role: Bidirectional motor driver with real-time open-load and over-current detection during stall conditions.

Use Value: Eliminates need for external current-sense amplifiers and direction logic; 0.8A rating matches typical HVAC motor peak loads.

Automotive Fuel Injector Driver

Industrial Valve Control System

Use Scenario: Low-voltage (12V) injector drivers in gasoline direct injection (GDI) systems.

IC Role / Device Role / Timing Role: High-speed, high-reliability switch controlling injector coil energization with precise timing (<65μs enable/disable).

Use Value: 5MHz SPI interface enables synchronized multi-injector firing; AEC-Q100 Grade 1 ensures operation at 125°C ambient under hood.

Use Scenario: Controlling pneumatic/hydraulic solenoid valves in factory automation PLC I/O modules.

IC Role / Device Role / Timing Role: Robust industrial-grade driver handling 24V DC solenoids with built-in short-circuit and thermal protection.

Use Value: Dual VS domains allow isolation of valve banks; 40V max rating accommodates 24V system transients per IEC 61000-4-5.

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal half-bridge driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BD8940MUV-M	40V, 0.5A/channel, 2.5Ω R_DS(ON), no dual VS domains, only 3.3V logic compatible	Lacks thermal pre-warning, open-load shutdown, and VS domain separation - limited to non-safety-critical loads	Select when lower cost and simpler diagnostics suffice; not suitable for ASIL-B systems requiring fault containment.
TPIC2101QPWPRQ1	40V, 0.6A/channel, 2.0Ω R_DS(ON), parallel control only (no SPI), no diagnostic registers	No serial interface or embedded status reporting - requires external GPIO and ADC for fault monitoring	Choose for legacy designs using parallel bus architecture; avoid when SPI configurability or diagnostic traceability is required.

Compared with BD8940MUV-M and TPIC2101QPWPRQ1, the MPQ6628GF-AEC1-Z delivers higher current capability (0.8A), lower conduction loss (1.3Ω), full SPI-configurable diagnostics, and dual VS domain isolation - making it uniquely suited for next-generation automotive ECU platforms requiring functional safety and compact integration.

Availability

MPQ6628GF-AEC1-Z is available at Aetrix Electronics and suitable for automotive body control modules, HVAC actuator systems, fuel injector drivers, and industrial valve control requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MPQ6628GF-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 manufacturing partnerships.

The MPQ6628 belongs to MPS's AEC-Q100–qualified automotive motor driver product line, engineered specifically for reliable, diagnostic-rich control of resistive and inductive loads in harsh automotive environments.

FAQ

What is the maximum allowable voltage on the VS pins, and how does UVLO/OVLO protect the device?

The absolute maximum VS voltage is 45V, but recommended operating range is 5.5V–40V. VS under-voltage lockout (UVLO) activates at 4.5V (typical) with 0.3V hysteresis, disabling outputs to prevent erratic switching. VS over-voltage lockout (OVLO) triggers at 36V (typical) with 2.5V hysteresis, shutting down all channels to avoid MOSFET avalanche failure. Both protections are hardware-based and independent of SPI communication.

How does the dual VS supply architecture (VS1 and VS2) improve system reliability?

VS1 powers outputs 1,2,5,7,8 and internal circuitry including the charge pump; VS2 powers outputs 3,4,6 only. This physical separation limits fault propagation: a short on OUT4 cannot affect OUT1 or the charge pump. It also enables domain-specific power sequencing and independent monitoring - critical for ISO 26262 ASIL decomposition in safety-critical subsystems.

Can the MPQ6628GF-AEC1-Z drive inductive loads like solenoids without external flyback diodes?

Yes. The integrated DMOS FETs include intrinsic body diodes that provide freewheeling paths for inductive kickback. No external flyback diodes are required for standard 12V/24V solenoid or relay loads. However, for high-energy inductors (>100mJ), external RC snubbers may be needed to suppress voltage overshoot beyond the 45V absolute maximum rating.

What diagnostic data is available via the DO pin, and how is it structured?

The DO pin outputs a 16-bit status word synchronized to CLK on CS falling edge. Bits 15–0 encode channel-grouped diagnostics: PRE_15 (latched TSD), OC, PSF, OLD, SHBEN, HBCNF, and TW. Two separate register maps exist - one for HB[6:1] (CH_SEL=0) and another for HB[8:7] (CH_SEL=1). All bits are latched until cleared by SRR command or VCC power-on reset.

Is the MPQ6628GF-AEC1-Z pin-compatible with earlier revisions or other MPS motor drivers?

No. MPQ6628GF-AEC1-Z has a unique pinout optimized for its dual VS architecture and 28-pin TSSOP-28EP package. It is not pin-compatible with MPQ6530, MPQ6528, or MPQ6612. Migration requires PCB layout revision and firmware updates to accommodate the 16-bit SPI register map and VS1/VS2 routing.

What is the thermal performance of the TSSOP-28EP package under continuous 0.8A load per channel?

In a 4-layer JEDEC-standard PCB (JESD51-7), θ_JA is 32°C/W. At 0.8A and 1.3Ω R_DS(ON), power dissipation per channel is ~0.83W. With all 8 channels active, total die power is ~6.6W - raising junction temperature by ~211°C above ambient. Therefore, derating or forced-air cooling is required for full-load operation at >25°C ambient; typical use assumes ≤4 channels active simultaneously in thermally constrained spaces.

MPQ6628GF-AEC1-Z Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: 28-TSSOP (0.173", 4.40mm Width) 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 (8)

Interface:: SPI

Technology:: Power MOSFET

Step Resolution:: -

Applications:: -

Current - Output:: 800mA

Voltage - Supply:: 5.5V ~ 40V

Voltage - Load:: -

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 28-TSSOP-EP

MPQ6628GF-AEC1-Z FAQ

1.How can I place an order for MPQ6628GF-AEC1-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MPQ6628GF-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 MPQ6628GF-AEC1-Z reliable?

The price and inventory of MPQ6628GF-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 MPQ6628GF-AEC1-Z is usually 5 days.

3.What payment methods are accepted for MPQ6628GF-AEC1-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ6628GF-AEC1-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPQ6628GF-AEC1-Z?

MPQ6628GF-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPQ6628GF-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 MPQ6628GF-AEC1-Z?

For technical support, including MPQ6628GF-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ6628GF-AEC1-Z requirements.

6.How does Aetrix verify that MPQ6628GF-AEC1-Z is sourced from the original manufacturer or authorized distributors?

All MPQ6628GF-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 MPQ6628GF-AEC1-Z meets industry standards.

7.What is the process for return or replacement of MPQ6628GF-AEC1-Z?

All MPQ6628GF-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ6628GF-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 MPQ6628GF-AEC1-Z part is unused and in its original packaging.

Return procedure for MPQ6628GF-AEC1-Z:

1.Submit a request within 90 days.

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

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