Toshiba Commences Commercial Sample Shipments of Gate Driver IC for 3-Phase Brushless DC Motors in Diverse Automotive Applications

As the electrification of automotive components with movement functions accelerates, the number of motors per vehicle is steadily increasing—particularly in body systems. This trend has driven the shift from brushed DC motors to quieter, longer-lasting brushless DC (BLDC) motors. To support this transition, Toshiba Electronic Devices & Storage Corporation has launched commercial samples of its 3-phase BLDC motor gate driver IC “TB9084FTG” .

Engineered with essential functions for automotive use, the TB9084FTG is ideal for automotive body systems, electric pumps, and motor-generators. It combines design flexibility, compact size, and robust reliability to meet the rigorous demands of modern vehicles.

Key Product Features & Technical Advantages

1. Enhanced System Design Flexibility

The TB9084FTG can be integrated into Electronic Control Units (ECUs) consisting of discrete components such as microcontrollers, N-channel MOSFETs, power supply ICs, and communication PHYs (Physical Layer interfaces). When system requirements change, only relevant components need to be replaced—eliminating the need for full ECU redesign and boosting flexibility.

2. Compact 6×6mm Package for Device Miniaturization

By streamlining functions to only the essentials for automotive applications, the TB9084FTG features a compact P-VQFN36-0606-0.50 package (6×6mm, 36mm² mounting area). Key integrated functions include:

• 3-phase BLDC motor drive circuit

• System anomaly detection and protection (power undervoltage detection, charge pump overvoltage detection, thermal shutdown)

• Single-channel operational amplifier for current monitoring

• SPI communication for configuration and system status monitoring

3. Wettable Flanks Package for Improved Mounting Reliability

The package incorporates wettable flanks—a special terminal structure that enables automatic visual inspection (AVI) of solder joints, ensuring mounting quality. Additionally, corner pins with ground potential (GND) are embedded in mold resin, reducing the risk of malfunctions caused by short circuits between pins.

4. Automotive-Grade Reliability

Compliant with AEC-Q100 Grade 0 (the strictest temperature category for automotive electronic components), the TB9084FTG operates reliably across a wide temperature range of -40°C to +150°C, meeting the harsh quality requirements of automotive applications.

Target Applications

The TB9084FTG is tailored for diverse automotive BLDC motor applications, including:

• Automotive body systems (e.g., power sliding doors, power liftgates, power seats)

• Electric pumps (water pumps, oil pumps)

• Motor-generators (integrating power boost and power generation functions for hybrid vehicles)