10A H-Bridge Motor Driver ICs with Dual Channel Support to Achieve Low Rds Value in Automotive Applications

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ByRajni Setia 0

TB9054FTG and TB9053FTG Motor Driver ICs

Toshiba Electronics has introduced two new brushed DC motor driver ICs - TB9054FTG and TB9053FTG to meet the rising demand for system miniaturization and cost reduction in automotive applications. Housed in 6.0 mm x 6.0 mm small QFN packages, these new motor drivers will help downsize automotive electronic control units (ECUs). Both TB9054FTG and TB9053FTG ICs are AEC-Q100 Grade 1 qualified and support temperatures up to 150°C junction temperature. These ICs make use of advanced DMOS FET technology to achieve a low RDSON value.

Besides meeting the stimulating demand for system miniaturization and cost reduction, these new H-bridge motor drivers from Toshiba meet the On-Board Diagnostic II (OBDII), the second generation of onboard self-diagnostic equipment requirements that will become mandatory in 2022, requiring automotive motor driver ICs to have SPI communication functions.

The new ICs feature 5A 2ch output drivers that help to reduce mounting area. Besides, 10A 1ch drive in parallel mode is also possible. They can be daisy-chained, and also have functions that control motors only by SPI communication, thereby reducing MCU ports. ETC, EGR, power mirror folding, small fans, grill shutter, camera or OBC lid operation, plus soft power door opening/closing systems are some of the key applications of these new ICs introduced by Toshiba.

Key Features of TB9054FTG and TB9053FTG Motor Driver ICs

  • Built-in 2ch H-bridge driver: Output driver circuit is configured by DMOS FET with low on-resistance, realizing a 5A 2ch H-bridge driver. A 10A 1ch drive in parallel mode is also possible.
  • SPI communication: Daisy-chain connectivity and motor control only by SPI communication both reduce MCU ports, contributing to system miniaturization.
  • Small packages: TB9054FTG comes in a small surface-mount wettable flank VQFN 40 pin package with E-pad while the TB9053FTG comes in a small surface-mount power QFN 40 pin package with E-pad.

Samples of TB9054FTG are available now and the mass production is scheduled for March 2022. The samples of TB9053FTG will be ready in February 2021, with mass production scheduled for May 2022.

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