Monolithic Power Systems Inc. MPQ6527GF-AEC1-P

Overview

MPQ6527GF-AEC1-P from Monolithic Power Systems is a 10-channel AEC-Q100 Grade 1 half-bridge motor driver IC with integrated DMOS power MOSFETs, serial SPI control interface, and comprehensive diagnostics. It operates from 5.5V to 40V input, delivers up to 0.8A per channel, features 1.3Ω typical R_DS(ON) (HS+LS), and supports automotive body electronics including seat/mirror/window actuators. Its TSSOP-28 EP package enables compact high-channel-count motor control in space-constrained ECUs.

For engineers reviewing the MPQ6527GF-AEC1-P datasheet, MPQ6527GF-AEC1-P pinout, MPQ6527GF-AEC1-P application, or MPQ6527GF-AEC1-P equivalent, key selection criteria include its 10 independent half-bridge topology, AEC-Q100 Grade 1 qualification (-40°C to +125°C T_J), diagnostic coverage (open-load, over-current, thermal pre-warning/shutdown), and 5MHz SPI interface timing compliance with 3.3V/5V logic systems.

Technical Context

The MPQ6527 implements two independent VS supply domains (VS1 for channels 1,2,5,7,8; VS2 for channels 3,4,6,9,10) with internal charge pump and LDO regulation. Each half-bridge is individually configurable via 16-bit SPI frames-separate register sets exist for channels 1–6 and 7–10-with dedicated enable (HBENx), configuration (HBCNFx), and open-load detection enable (OLSD_EN) bits.

Diagnostic architecture includes latched fault reporting per channel (OC, OLD, TW, PSF) on DO output, with thermal pre-warning at 120–140°C and shutdown at 150–175°C, plus UVLO (4.5V threshold) and OVLO (36V threshold) on both VS domains. Serial communication requires CS-active-low framing, DI data sampled on CLK falling edge, and DO output enabled on CS falling edge with PRE_15 bit for thermal shutdown status retention.

Key Specifications

Pinout & Package

TSSOP-28 EP package with exposed thermal pad on bottom for enhanced heat dissipation in automotive PCB layouts. Pin count: 28 pins, 4 NC pins, dual VS domain separation, and dedicated TEST pins tied to GND.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 10-channel half-bridge driver applications.

Compared with STSPIN250 and TLE9201SG, the MPQ6527GF-AEC1-P uniquely combines 10 independent channels, dual VS domain isolation, SPI-based diagnostics with latched fault reporting, and AEC-Q100 Grade 1 qualification-making it optimal for next-generation automotive ECU consolidation where channel density and diagnostic fidelity are critical.

Availability

MPQ6527GF-AEC1-P is available at Aetrix Electronics and suitable for automotive seat control, body control modules, window lift systems, and industrial actuator applications requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.

Supply support for MPQ6527GF-AEC1-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 MPQ6527 belongs to MPS's automotive-grade motor driver product line, engineered specifically for consolidated body electronics ECUs requiring high channel density, SPI configurability, and comprehensive fault diagnostics under AEC-Q100 stress conditions.

FAQ

What is the maximum allowable junction temperature for continuous operation?

The MPQ6527GF-AEC1-P has a maximum junction temperature of 150°C, with thermal shutdown triggered at 150–175°C. Continuous operation is rated up to 125°C junction temperature per AEC-Q100 Grade 1 specifications; operation beyond this requires derating based on θ_JA = 32°C/W and ambient conditions.

How does the dual VS domain (VS1/VS2) improve system reliability?

VS1 powers channels 1,2,5,7,8 and internal regulators; VS2 powers channels 3,4,6,9,10. This separation prevents fault propagation-if a short occurs on a VS2-connected load, only those five channels shut down, preserving functionality of VS1-driven actuators like seat position sensors or mirror heaters.

Can the MPQ6527GF-AEC1-P drive stepper motors directly?

No-it provides ten independent half-bridges, not full H-bridge pairs per phase. To drive a 2-phase stepper motor, external external logic or two MPQ6527s would be needed to generate complementary signals; it is optimized for DC motors, solenoids, and generic inductive/resistive loads.

What happens to output states during an over-current event?

When over-current is detected on any channel, the corresponding OC bit latches in the status register, and that half-bridge output is immediately disabled (Hi-Z). The fault remains latched until cleared by Status Register Reset (SRR) command or EN pin toggle-ensuring persistent fault visibility for host MCU diagnostics.

Is the TEST pin required to be connected in production hardware?

Yes-pins 20 and 21 are labeled TEST in the datasheet and must be connected to GND in all production designs. These pins are internally tied to factory test circuitry; leaving them floating may cause undefined behavior or reduced latch-up immunity.

Does the device support daisy-chained SPI configuration?

No-the MPQ6527GF-AEC1-P uses standard 4-wire SPI (DI, DO, CLK, CS) with individual CS lines per device. Daisy-chaining is not supported; each IC requires its own dedicated CS signal from the host MCU to avoid bus contention on the DO line.

What is the purpose of the PRE_15 bit on the DO pin?

PRE_15 is a latched thermal shutdown (TSD) indicator that remains asserted on DO until the first rising CLK edge after CS goes low-even if TSD condition clears-ensuring host MCU reliably captures critical fault events without missing transient shutdown pulses during high-speed SPI polling.