Monolithic Power Systems Inc. MP6527GF-P

Overview

MP6527GF-P from Monolithic Power Systems is a 10-channel, half-bridge motor driver IC with integrated DMOS power MOSFETs, operating from 5.5V to 40V input voltage and delivering up to 0.8A per channel. It features serial SPI control (up to 5MHz), independent channel enable/configurability, and comprehensive diagnostics including open-load, over-current, over-temperature, and supply fault detection. It is used in automotive seat/mirror actuators and industrial multi-axis valve control systems.

For engineers reviewing the MP6527GF-P datasheet, MP6527GF-P pinout, MP6527GF-P application, or MP6527GF-P equivalent, key selection criteria include its 10-channel half-bridge architecture, TSSOP-28EP package with exposed thermal pad, 1.3Ω typical R_DS(ON) per FET, diagnostic register readback via DO, and dual VS supply domains (VS1/VS2) requiring external connection.

Technical Context

The MP6527GF-P implements ten independent half-bridge output stages, each composed of matched high-side and low-side DMOS FETs with 1.3Ω typical R_DS(ON). Channel control is executed via a 16-bit SPI interface supporting status register reset (SRR), channel group selection (CH_SEL), and per-channel enable/configuration bits (HBENx, HBCNFx).

It integrates dual power domains: VS1 supplies drivers for channels 1, 2, 5, 7, 8 plus internal LDO and charge pump; VS2 supplies drivers for channels 3, 4, 6, 9, 10 - both must be externally shorted. Diagnostics include latched over-current (OC), open-load (OLD), thermal pre-warning (TW), and thermal shutdown (TSD), all readable via dedicated output registers.

Key Specifications

Pinout & Package

MP6527GF-P is housed in a thermally enhanced TSSOP-28EP package with an exposed copper pad on the bottom for PCB heat sinking. The package includes four GND pins (pins 2, 13, 16, 27) and two isolated VS supply domains (VS1 at pin 24, VS2 at pin 19), which must be externally connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TB9051FTG and VNHD7008AY, MP6527GF-P uniquely balances 10-channel density, 0.8A capability, rich diagnostics (including TW), and compact TSSOP-28EP packaging - making it optimal for space-limited, thermally aware multi-actuator systems where SPI simplicity is preferred over CAN.

Availability

MP6527GF-P is available at Aetrix Electronics and suitable for automotive seat control, industrial valve actuation, medical infusion pumps, and robotics joint control requiring stable component supply and long-term production continuity.

Supply support for MP6527GF-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.

The MP6527 belongs to MPS's automotive-grade motor driver product line, engineered for robust operation in harsh environments (-40°C to +125°C) with integrated protection and diagnostic features to simplify functional safety compliance.

FAQ

What is the maximum allowable supply voltage on the VS pins?

The absolute maximum rating for VS pins is 45V. Operation above 40V violates the recommended operating conditions and risks permanent damage due to overvoltage lockout (OVLO) threshold exceedance and internal device stress. The OVLO trips at 33–39V depending on hysteresis, ensuring safe shutdown before reaching 45V.

How does open-load detection work, and what current threshold triggers it?

Open-load detection monitors low-side FET conduction current. When current falls below 1–45mA (typical 16mA at VVS = 13.2V) for longer than 200–600μs, the OLD bit is latched. If OLSD_EN is enabled, the affected channel shuts down automatically. Detection is per-channel and fully configurable via SPI.

Can MP6527GF-P drive bipolar stepper motors?

No - MP6527GF-P provides ten independent half-bridges, not H-bridge pairs. Each OUTx pin is a single half-bridge node; driving a bipolar stepper requires coordinated complementary switching across two half-bridges per phase, which this device does not natively support. It is intended for unidirectional DC motors, solenoids, and valves.

Is the TSSOP-28EP package RoHS and halogen-free?

Yes - MP6527GF-P is lead-free, halogen-free, and fully compliant with the EU RoHS directive. MPS confirms green status on its official Quality Assurance page, and the device meets JEDEC J-STD-020 moisture sensitivity level (MSL) 2A per ordering information.

What happens to output states during EN pin assertion?

When EN is pulled low, all ten half-bridge outputs immediately disable (Hi-Z), internal SPI registers reset to default values, and quiescent current drops to ≤5μA. Upon EN rising edge, the device wakes up, reinitializes logic, and retains prior configuration only if powered continuously - no non-volatile memory is present.

Does MP6527GF-P support daisy-chained SPI configuration?

No - MP6527GF-P uses standard 4-wire SPI with dedicated CS, DI, DO, and CLK lines. Daisy-chaining requires shared DO/CS lines and shift-register behavior, which this device lacks. Multiple units require individual CS lines controlled by the host MCU.

How is thermal pre-warning (TW) different from thermal shutdown (TSD)?

Thermal pre-warning (TW) asserts at 120–170°C junction temperature as a software-accessible flag, allowing firmware to reduce load current before shutdown. Thermal shutdown (TSD) triggers at 150–200°C and forces immediate output disable. TW has 20°C hysteresis; TSD also has 20°C hysteresis but requires power cycle or EN toggle to clear.