September 28, 2021
Toshiba Electronic Devices & Storage Corporation
TOKYO—Toshiba Electronic Devices & Storage Corporation ("Toshiba") has begun shipping test samples of "TB9083FTG," a pre-driver IC for automotive applications that include brushless motors for electric power steering systems and electric brakes.
Toshiba will ship final samples in January 2022, and will start mass production in December 2022.
TB9083FTG is a three-phase pre-driver that controls and drives external N-channel power MOSFETs for driving a three-phase brushless DC motor. It supports ASIL-D[1] functional safety[2] and its compliance with ISO 26262 2nd edition allows use in for highly safety-critical automotive systems.
The new IC has a built-in three-channel pre-driver for the safety relays that control and drive the relays for motors and power supply. This eliminates the need for external components and helps reduce the part count.
TB9083FTG is housed in a small P-VQFN48-0707-0.50-005 package (7.0mm x 7.0mm (typ.)) with a wettable flank[3] structure. As the need for redundant design imposes restrictions on electronic control unit board area, adoption of this small packages helps to reduce the total mounting area.
Notes:
[1] ASIL (Automotive Safety Integrity Level) : The highest automotive safety level regulated in the ISO 26262 functional safety standards.
[2] Functional-safety-based standards seek to minimize risk resulting from system failures. ISO 26262 certification recognizes that a company's processes or products for electrical and electronic (E/E) systems for car applications meet the stringent criteria specified in the standard and provides third parties with an independent means of assessing the capabilities of a potential supplier.
[3] Shape of side leads of packaging.
Automotive equipment
Notes:
[4] ABIST (Analog Built-In Self-Test)
[5] LBIST (Logic Built-In Self-Test)
[6] SPI (Serial Peripheral Interface)
[7] CRC (Cyclic Redundancy Check)
[8] E-pad (Exposed pads) : Metal frame on back side of package
Part number |
TB9083FTG |
|
---|---|---|
Supported motors |
Three-phase brushless DC motor |
|
Main functions |
SPI communication, current detection amplifier, three channels pre-driver for safety relay, external MOSFET VGS clamping function |
|
Self-diagnosis function |
ABIST, LBIST |
|
Error detections |
Undervoltage detection, overvoltage detection, external MOSFET VGS/VDS detection, overtemperature detection |
|
Operating voltage range |
VB=4.5V to 28V VCC=3.0V to 5.5V |
|
External power supply |
2 power supplies (VB, VCC) |
|
Operating temperature |
Ta=-40℃ to 150℃ Tj=-40℃ to 175℃ |
|
Package |
Name |
P-VQFN48-0707-0.50-005 |
Size typ. (mm) |
7.0 × 7.0 |
|
Reliability |
To be AEC-Q100 qualified |
|
Final sample offering |
January 2022 |
|
Mass production |
December 2022 |
Follow the link below for more on Toshiba’s automotive brushless motor driver ICs including pre-driver ICs.
Customer Inquiries
Analog & Automotive Device Sales & Marketing Dept.
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