Automotive CXPI Communication Application Circuit B (Door Mirror Drive Board / CXPI Responder Node)

CXPI, a next‑generation automotive communication protocol, delivers low cost and high responsiveness to support efficient control of various in‑vehicle functions.
This reference design represents an example of a responder node for in-vehicle CXPI communication, implemented as a door mirror control board equipped with a CXPI interface.
The CXPI interface IC TB9033FTG is adopted, and in combination with a Motor Control Driver (MCD) and external MOSFETs, the design enables control of multiple motors integrated in the door mirror as well as the Blinker.

Board Appearance
Board Appearance
DF2B29FU DF2B29FU TB9033FTG SSM3K341R SSM3K341R TB9101FNG TB9054FTG

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特性

  • Supports next‑generation in‑vehicle communication protocol CXPI (ISO 20794‑2~4, ISO 14229‑8).
  • Equipped with a CXPI interface IC featuring 16‑channel GPIO, supporting PWM output, AD input switching, and various I/O control functions.
  • Uses two types of automotive motor drivers; by combining GPIO PWM and H/L control signals, up to three motors can be driven flexibly and with high precision.
  • Drives turn indicators efficiently using N‑channel MOSFETs controlled by GPIO PWM signals, enabling adjustable lighting patterns and brightness.
  • Outer dimensions: 100mm × 100mm

說明

Main Ics CXPI Interface IC TB9033FTG
Input Power Supply Voltage DC 7V to 16V (Typ. 12V)
Functional blocks CXPI communication circuit, Blinker drive circuit, Door mirror drive circuit, and Mirror angle adjustment circuit
Supported motors and Control methods Automotive Brushed DC Motor (PWM)

設計文件

供設計人員使用的材料，例如電路操作概述和設計注意事項的解釋。請點擊每個選項以查看內容。

設計數據

提供可載入到EDA工具中的電路資料、PCB佈局資料以及PCB製造中使用的資料。來自多個工具供應商的可用格式。您可以使用喜歡的工具來自由的編輯它。

*1:Actual PCB was designed on CR8000BD. The other files were made from CR8000BD file.

*2:The data was generated on CR8000BD.

使用東芝項目/產品

器件型號 器件目錄 使用部位・數量 說明
Network communication IC CXPI Communication Circuit・1 CXPI Interface H/W logic IC with configurable 16ch I/O
H-bridge driver for automobile Door Mirror Control Circuit・1 PWM type, dual channel H-bridge brushed DC motor driver for automotive, VQFN40
H switch motor driver for automobile Door Mirror Angle Adjustment Circuit・1 Automotive 2ch H-Bridge driver for DC Brushed Motor, SSOP24
Small Low ON resistance MOSFETs Blinker Drive Circuit・1 N-ch MOSFET, 60 V, 6.0 A, 0.036 Ω@10V, SOT-23F
ESD protection diode (bi-directional type) CXPI Communication Circuit・1 Bidirectional TVS Diode (ESD Protection Diode), +/-24 V, SOD-323(USC)

相關文件

我們提供有助於設計和考慮類似電路的材料，例如已安裝產品的應用說明。請點擊每個選項以查看內容。

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