SHANGHAI, China, March 13, 2025 - Toshiba Electronic Components and Memory Devices Corporation (“Toshiba”) today announced the mass production of its gate driver IC[1]-“TB9103FTG” - for in-vehicle DC brush motor applications. -Typical applications include latch motors[2] and locking motors[3] for power rear doors and power sliding doors, as well as drive motors for power windows and power seats.

Figure. 1

With automotive components now largely electrified, the demand for motors and the number of motors integrated in vehicles is increasing. As the number of driver ICs used in motors increases, there is a preference for highly integrated and miniaturized system solutions. In addition, some motor applications do not require speed control, but only driver ICs with simple functions and performance.

The TB9103FTG provides optimized gate driver IC functionality and performance for DC brush motors that do not require speed control, opening the way for more compact designs. It features a built-in charge pump circuit [4] that ensures the voltage required to power the external MOSFETs of the drive motor. In addition, it has a gate monitoring function that prevents the generation of a through current by automatically controlling the gate signal output timing for the high and low side external MOSFETs. At the same time, the IC has a built-in sleep function to reduce power consumption during standby.

This new IC can be used as either a single-channel H-bridge or a dual-channel half-bridge. In addition to being used as a motor driver IC, it can be combined with external MOSFETs to replace mechanical relays and other mechanical switches, contributing to quieter operation and higher device reliability.

Figure.2 Application Circuit Example for H-Bridge Mode

The TB9103FTG is available in a 4.0 mm × 4.0 mm (typical) VQFN24 package, which helps to reduce device size.

A reference design for “Automotive DC Brush Motor Control Circuit Using the TB9103FTG” is now available on Toshiba's website.

Toshiba will continue to expand its lineup of automotive motor driver ICs in the future, contributing to the electrification and increased safety of automotive equipment.

Applications:

In-vehicle equipment

-Drivers for latch motors and locking motors used in power rear doors and power sliding doors; drivers for motors used in windows and power seats, etc.

Features:

-Streamlined functions and performance contributing to miniaturization

-Small package

-Low standby power consumption (built-in sleep function)

-Can be used as a gate driver IC for single-channel H-bridge or dual-channel half-bridge

-Compliant with AEC-Q100 (Grade 1) standard

Key Specifications:

TB9103FTG Specification Information Collation

Basic Information

Part Number: TB9103FTG

Supported Motors: DC Brushed Motors

Number of Output Channels: Single Channel (H-Bridge Mode) / Dual Channel (Half Bridge Mode)

Main Functions:

Sleep function

Built-in charge pump

H-bridge mode, half-bridge mode and dead time control

Main Fault Detection:

Power supply low voltage detection

Charge pump overvoltage detection

Overheat detection

VGS and VDS detection for internal MOSFETs

Absolute maximum ratings (Ta = -40°C to 125°C)

Supply Voltage 1 (Vb): -0.3 to 18V

Supply Voltage 1 (Vb) Momentary Withstand Voltage (within 1 second): 18 to 40V

Supply Voltage 2 (Vcc): -0.3 to 6V

Ambient temperature (Ta): -40 to 125°C

Operating range (Ta = -40°C to 125°C)

Supply voltage operating range 1 (Vb_rng): 7 to 18V

Supply Voltage Operating Range 2 (Vcc_rng): 4.5 to 5.5V

Junction temperature operating range (Tj_rng): -40 to 150°C

Package Information

Package Type: P-VQFN24-0404-0.50-003

Dimensions (mm, typical): 4.0 × 4.0

Reliability

Meets AEC-Q100 (Grade 1) standards

Notes:

[1] GATE DRIVER IC: Driver IC for driving MOSFETs.

[2] Latch motor: Motor used in the system to keep the door closed.

[3] Latch motor: Motor used in the system to work with the key to lock and unlock the door in case of a criminal act.

[4] CHARGE PUMP CIRCUIT: A circuit that uses capacitors and switches to boost voltage.

About Toshiba Electronic Components and Storage Devices Corporation

Toshiba Electronic Devices & Storage Corporation (Toshiba), a core subsidiary of the Toshiba Group, was founded in 2017 and is headquartered in Japan. The company specializes in the research, development and manufacturing of semiconductors, storage devices and electronic components, with products ranging from power semiconductors, analog ICs, microcontrollers, and HDD hard disks for a wide range of automotive, industrial, communications and consumer electronics applications.

As one of the world's leading semiconductor suppliers, Toshiba Electronics is committed to providing energy-efficient solutions and promoting the development of automotive electronics, the Internet of Things and industrial automation. The company adheres to the philosophy of “Driving the future with technological innovation”, and continuously optimizes product performance and reliability to help customers around the world achieve intelligent and sustainable development.