12V Three-Phase Gate-Driver IC: IM7M6Gx

The Immorta IM7M6Gx is a domestically-developed high-performance automotive-grade three-phase gate-driver IC designed for diverse 12V-system applications. It drives an external six-NMOS three-phase half-bridge and supports a wide input-voltage range (5.5V–40V) for flexible platform-based applications. The IM7M6Gx supports independent PWM control mode and integrates a high-voltage charge pump enabling 100% duty-cycle output to meet high-performance driving requirements.

The IM7M6Gx gate driver provides up to 1 A drive current and is compatible with both 3.3V and 5V IO interfaces, adapting to various MCU system scenarios. In addition, the IC supports low-power mode for improved energy efficiency. The IM7M6Gx integrates a high-precision differential current amplifier for bus-current sensing and over-current protection, and users can flexibly set the amplifier gain and bias voltage via external resistors.

For reliability, the IM7M6Gx integrates a MOS voltage-detection circuit that effectively handles common motor faults such as short-circuit, over-current, open-circuit, and stall, providing comprehensive protection. Its excellent performance and reliable safety mechanisms make the IM7M6Gx an ideal choice for intelligent automotive drive systems.

Main Features

• 3.3V/5V logic supply input, adaptable to different MCU systems
• Integrated high-voltage charge pump supporting 100% PWM duty-cycle operation
• Integrated high-precision differential current amplifier with gain adjustable via external resistor
• Fault-diagnosis function with fault indication and readback via the Fault pin
• AEC-Q100 automotive-grade certification
• Junction temperature range: -40℃ to +150℃
• 40V three-phase NMOS gate driver with 1 A peak drive current
• Wide input-voltage range: 5.5V–40V
• Adjustable dead-time and cross-conduction protection
• Low-power and freewheeling modes
• Compact QFN package

Highlights

• 5.5V–40V wide input supports 12V motor systems

• Integrated high-voltage charge pump supporting 100% PWM duty cycle.
• Independent PWM channels, adaptable to various motor algorithms.

• Fault indication and diagnostics for dependable safety.

• Generic design reducing development difficulty and cost.
• High integration reducing external component count.

Applications

Block Diagram

Product Models

Immorta Product Solutions

Immorta provides one-stop motor-drive solutions covering the full chain from signal transceiving and control to driving. The core product, the IM7M6Gx, is a domestically-developed high-performance automotive-grade three-phase gate-driver IC designed for 12V systems and diverse motor-control scenarios. The integrated high-precision differential amplifier enables bus-current sensing and over-current protection, while comprehensive fault-detection mechanisms ensure system safety and reliability.

The IM1028x automotive-grade LIN transceiver delivers excellent EMC performance and high compatibility with LIN bus devices, providing stable communication support for the whole system. The IM90xx and IM94xx automotive-grade MCUs, based on the Cortex-M0+ and Cortex-M4F cores respectively, deliver efficient motor control and superior computing performance — the IM90xx optimizes FOC algorithm execution efficiency, while the IM94xx, with its DSP instruction set and hardware crypto module, meets complex computing and security needs.

This solution not only improves motor-control efficiency and stability but also satisfies intelligent vehicles' high demands for energy consumption and safety, making it an ideal choice for high-efficiency drive systems.

IM7M6Gx Development Environment

The Immorta IM7M6Gx development environment is fully equipped, offering engineers an efficient and convenient experience that boosts productivity, lowers R&D effort, and accelerates motor-drive deployment.