Toshiba Electronic Devices & Storage Corporation ("Toshiba") has started mass production of "TB9103FTG," a gate driver IC^[1] for automotive brushed DC motors, including the latch motors^[2] and lock motors^[3] of power backdoors and power slide doors, and the drive motors of power windows and power seats.

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Toshiba: TB9103FTG, a gate driver IC for automotive brushed DC motors and the reference design "Automotive Brushed DC Motor Control Circuit Using TB9103FTG." (Graphic: Business Wire)

Formerly manually adjusted parts of automobiles are now largely electrified, which has increased both the demand for electric motors and the number integrated into vehicles. The number of drivers used in motors has also increased, prompting moves to downsize and integrate overall systems. There are also some motor applications that do not require rotational speed control, and drivers with simple functions and performance are required for these applications.

TB9103FTG offers streamlined gate driver functions and performance for brushed DC motors that do not require speed-control, opening the way to more compact design. It has a built-in charge pump circuit^[4] that ensures voltage needed to power external MOSFETs for driving motors. It also has a gate monitoring function that prevents the generation of through-current by automatic control of the output timing of the gate signal to the high-side and low-side external MOSFETs. In addition, it has a sleep function, achieving low power consumption during standby.

The new IC can also be used as one-channel H-bridge or two-channel half-bridges. In addition to application as a motor driver, it can be combined with an external MOSFET to replace mechanical relays and other mechanical switches, contributing to quieter operation and higher equipment reliability.

TB9103FTG is housed in a 4.0×4.0mm (typ.) VQFN24 package, and contributes to equipment downsizing.

A reference design for an "Automotive Brushed DC Motor Control Circuit Using TB9103FTG" is now available on Toshiba’s website.

Toshiba will continue to expand its lineup of automotive motor drivers, contributing to the electrification and the improved safety of automotive equipment.

Notes:

[1] A gate driver IC: A driver to drive MOSFETs.

[2] Latch motors: Motors used in systems to hold a door closed

[3] Lock motors: Motors used in systems that lock and unlock doors in conjunction with key operations to prevent crime.

[4] Charge pump circuit: A circuit that uses a capacitor and switches to increase voltage.

Applications

Automotive equipment

• Driver for latch motors and lock motors used in power backdoor and power slide doors, and for motors for windows, power seats, etc.

Features

• Minimized functions and performance that support downsizing
• Small package
• Low-power standby with built-in sleep function
• Can operate as a gate driver for one-channel H-bridge or two-channel half-bridges
• AEC-Q100 (Grade 1) qualified

Main Specifications

Follow the link below for more on the new product.

TB9103FTG

Follow the link below for the reference design using TB9103FTG.

Automotive Brushed DC Motor Control Circuit Using TB9103FTG

Follow the link below for more on Toshiba’s automotive brushed DC motor driver ICs.

Automotive Brushed DC Motor Driver ICs

To check availability of the new product at online distributors, visit:

TB9103FTG

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About Toshiba Electronic Devices & Storage Corporation

Toshiba Electronic Devices & Storage Corporation, a leading supplier of advanced semiconductor and storage solutions, draws on over half a century of experience and innovation to offer customers and business partners outstanding discrete semiconductors, system LSIs and HDD products.

Its 19,400 employees around the world share a determination to maximize product value, and to promote close collaboration with customers in the co-creation of value and new markets. The company looks forward to building and to contributing to a better future for people everywhere.

Find out more at https://toshiba.semicon-storage.com/ap-en/top.html

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