Toshiba introduces a new clock extension peripheral interface driver and receiver IC, which helps reduce the amount of wiring harnesses in automotive electronic systems
Time:2023-09-15
Views:695
Toshiba Electronic Components and Storage Devices Co., Ltd. ("Toshiba") today announced the launch of an interface driver/receiver IC - "TB9032FNG", which is a car driver/receiver IC used for the physical layer interface defined in the Clock Extended Peripheral Interface (CXPI) [1] car communication protocol standard. The sample application for this product will begin this month.
The trend of electrification in automobiles is driving the increase in the number of electronic components in on-board systems, which not only increases the complexity of components, but also increases the weight of vehicles as manufacturers adopt more wiring harnesses in their designs. The solution to this problem lies in transforming the current system, where the Human Machine Interface (HMI) [2] connects switches and sensors in a one-to-one manner, reducing the amount of wiring harness through multi-channel transmission of in-car communication.
HMI typically integrates Area Network (CAN) [3] and Local Interconnect Network (LIN) [4], with the former having higher costs and the latter having poor responsiveness. CXPI is a set of in car communication protocols developed in Japan, which has been adopted by international standards. CXPI includes in car subnetworks with lower cost than CAN and faster response speed than LIN.
The TB9032FNG combines Motor Control Device (MCD) and CXPI communication, and provides network interfaces for on-board applications or interfaces for Area Electronic Control Units (ECU) [5]. It can support functions such as controlling door locks and rearview mirror control.
The new product can switch modes between command nodes and response nodes through external terminals. In addition, it has 5 μ The current consumption (sleep) of A (typical value) (IBAT_SLP) [6], and the standby mode consumes low current. In addition, it is also equipped with fault detection functions, including overheating detection and low voltage detection, and is packaged in P-SOP8-0405-1.27-002.
The operating temperature range of this product is -40 ℃ to 125 ℃, and the design meets the AEC-Q100 (Level 1) automotive electronic component validation standard.
Toshiba plans to develop an interface IC using its leading CXPI physical layer technology assets, which will integrate CXPI controllers and protocol control hardware.
Application:
On board equipment
-Body control system applications (steering wheel switches, dashboard switches, light switches, door locks, door mirrors, etc.)
-Regional ECU
Characteristics:
-Physical layer interface compliant with CXPI (Vehicle Communication Protocol Standard)
-High speed response suitable for automotive body system applications (compared to LIN [3])
-Switching between command nodes and response nodes can be achieved through external terminals
-Built in sleep mode
-Low current consumption (sleep): IBAT_ SLP=5 μ A (typical value)
-Various fault detection functions: overheat detection, low voltage detection, and explicit timeout
-P-SOP8-0405-1.27-002 Packaging
-AEC-Q100 (Level 1) certification in progress
Main specifications:
(Unless otherwise specified, Ta=-40 ℃ to 125 ℃)
Note:
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Device model |
TB9032FNG |
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standard |
ISO 20794-4 |
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function |
physical layer interface |
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Node Selection |
support |
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absolute maximum rating |
Supply voltage 1 VBAT (V) |
Ta＝25℃ |
-0.3 to 40 |
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scope of work |
BAT normal working range VBAT (V) |
7 to 18 |
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VIO Normal Operating Range VVIO (V) |
4.5 to 5.5 |
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Working temperature range Ta (℃) |
-40 to 125 |
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Current consumption (sleep) IBAT_ SLP（ μ A) |
Typical value |
5 |
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Communication speed (kbps) |
Maximum value |
20 |
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Fault detection function |
Overheat detection, low voltage detection, and explicit timeout |
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package |
name |
P-SOP8-0405-1.27-002 |
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Size (mm) |
Typical value |
6.0×4.9 |
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Reliability testing |
AEC-Q100 (Level 1) certification in progress |
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Production time |
March 2024 |
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[1] CXPI (Clock Extended Peripheral Interface): A communication standard for in vehicle subnetworks derived from LIN, developed locally in Japan
[2] HMI (Human Machine Interface): A mechanism that enables interaction between humans and machines
[3] CAN (Controller Area Network): A serial communication standard primarily used for in vehicle communication networks
[4] LIN (Local Interconnect Network): Communication standard for in vehicle subnetworks with lower cost and speed compared to CAN
[5] ECU (Electronic Control Unit): An electronic control unit mainly installed on motor vehicles
[6] Measurement conditions: VVIO=4.5V to 5.5V, VBAT=7V to 18V, Ta=-40 ℃ to 125 ℃, NSLP=L, TXD=H, BUS=VBAT
About Toshiba Electronic Components and Storage Devices Co., Ltd
Toshiba Electronic Components and Storage Co., Ltd. is a leading supplier of advanced semiconductor and storage solutions. The company has accumulated over half a century of experience and innovation, providing customers and partners with outstanding solutions in the fields of discrete semiconductors, system LSI, and HDD.
The company has 23100 employees worldwide, committed to maximizing product value. Toshiba Electronic Components and Storage Devices Co., Ltd. places great emphasis on close collaboration with customers, aiming to promote value co creation and jointly explore new markets. The company now has an annual sales revenue of over 711 billion yen (6.2 billion US dollars), looking forward to building a better future and contributing to people around the world.
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