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Toshiba TB9104FTG Automotive Gate Driver ICs

Toshiba TB9104FTG Automotive Gate Driver ICs feature a single-channel H-bridge gate driver and a two-channel half-bridge gate driver for automotive applications. When the TB9104FTG is in standby mode, power consumption can be reduced. These Toshiba gate driver ICs include a charge pump circuit, a current-sense amplifier, an SPI communication circuit, a PWM circuit, and various abnormal-detection circuits. Motor rotation instructions can be given through the pin and via SPI. In the event of an abnormal detection, the gate drive shuts down according to preset settings. The DIAG_X terminal sends abnormality notifications, and SPI communication provides detailed information.

Features

  • Standby mode
    • Low power consumption
    • Capable of standby operation
  • Equipped with a charge pump - 2x boost configuration
  • Power supply possible to the battery reverse connection prevention circuit
  • Gate driver equipped with two modes
    • Half-bridge mode
      • Available in two channels
      • Independently for each channel, manage the high-side and low-side MOSFETs in a time-controlled manner to prevent through current
    • H-bridge mode
      • Can be used as a single channel by combining half bridges
      • Manage four N-type MOSFETs to prevent through current
  • Anomaly detection
    • VCC pin (analog power supply) low voltage detection
    • VB pin (battery) low voltage detection
    • VCP pin (charge pump voltage) high-voltage detection, boost under-voltage detection
    • RPPO pin (power supply for battery reverse connection prevention circuit) abnormal voltage-drop detection
    • SPI anomalies (format anomalies, command violations, and more)
    • Overheating detection
    • Monitoring the drain-source voltage of the external N-type MOSFET (overcurrent detection)
  • Notification from DIAG_X terminal - upon anomaly detection
  • Built-in motor current sense amplifier circuit - built-in offset calibration function
  • Built-in SPI communication circuit - drive instructions can also be issued from SPI, built-in PWM waveform generation circuit for H-bridge mode
  • Three power supplies are required
    • Battery power (5.7V to 18V)
    • MCU system power (4.5V to 5.5V)
    • Analog system power (4.5V to 5.5V)
  • Ambient temperatures
    • -40°C to +125°C
    • -40°C to +150°C (junction temperature)
  • AEC-Q100 Grade 1 qualified
  • 5mm2 VQFN32 package

Applications

  • Powered tailgates
  • Sliding doors
  • Back doors
  • Seats
  • Windows
  • Mirrors

Block Diagram

Block Diagram - Toshiba TB9104FTG Automotive Gate Driver ICs
Published: 2026-02-03 | Updated: 2026-02-03