BD41000AFJ-CE2

Datasheet CXPI Transceiver for Automotive BD41000AFJ-C General Description Key Specifications BD41000AFJ-C is a transceiver for the CXPI (Clock Extension Peripheral Interface) communication. Switching between Master/Slave Mode can be done using external pin (MS pin). Low power consumption during standby (non-communication) using Power Saving function. Arbitration function stops the data output upon detection of BUS data collision. Also Fail-safe function stops outputs upon detection of under voltage or temperature abnormality. Power Supply Voltage： +7V to +18V Absolute Maximum Rating of BAT： -0.3V to +40V Absolute Maximum Rating of BUS： -27V to +40V Power OFF Mode Current： 3 μA (Typ) Operating Temperature Range： -40°C to +125°C Package W(Typ) x D(Typ) x H(Max) SOP-J8 4.90mm x 6.00mm x 1.65mm Features  AEC-Q100 Qualified (Note1)  CXPI standards Qualified  Transmission speed range from 5kbps to 20kbps  Master/Slave switching function  Microcontroller interface corresponds to 3.3V/5.0V  Built-in terminator (30kΩ)  Power saving function  Data arbitration function  Built-in Under Voltage Lockout (UVLO) function  Built-in Thermal Shutdown (TSD) function  Low EME(Electromagnetic Emission)  High EMI(Electromagnetic Immunity)  High ESD(Electrostatic Discharge) robustness (Note1: Grade 1) SOP-J8 Applications  Automotive networks Typical Application Circuit CXPI BUS VECU Master node Regulator 10kΩ 2.7kΩ VDD MS(8) INT BAT(7) RXD(1) RXD Micro TXD Controller (Note 1) CLK TXD(4) 100nF BD41000AFJ-C 1kΩ CLK(3) BUS(6) NSLP(2) I/O GND 1nF GND(5) Slave node Regulator 2.7kΩ VDD 2.7kΩ(Note 2) 10kΩ MS(8) INT RXD BAT(7) RXD(1) Micro TXD Controller (Note 1) CLK TXD(4) 100nF BD41000AFJ-C CLK(3) BUS(6) NSLP(2) I/O GND GND(5) 220pF Note 1 INT: Interrupt, RXD: UART RXD, TXD: UART TXD, CLK: Clock, I/O: General Purpose I/O Note 2 While using slave, It is no problem that CLK is opened in the case of non-using CLK output. Figure 1. Typical Application Circuit Consider the actual application design confirming the following linked document before applying this product.  Application Note 〇Product structure : Silicon monolithic integrated circuit www.rohm.com © 2017 ROHM Co., Ltd. All rights reserved. TSZ22111・14・001 〇This product has no designed protection against radioactive rays 1/20 TSZ02201-0E2E0H600190-1-2 2019.03.26 Rev.003 BD41000AFJ-C Pin Configuration (TOP VIEW) RXD 1 8 MS NSLP 2 7 BAT CLK 3 6 BUS TXD 4 5 GND Figure 2. Pin Configuration Pin Description Table 1. Pin Description Function Pin No. Pin Name 1 RXD 2 NSLP 3 CLK Clock signal input/output pin (Master setting: Input, Slave setting: Output) 4 TXD Transmission data input pin 5 GND Ground 6 BUS CXPI BUS pin 7 BAT Power supply pin 8 MS Master/Slave switching pin (“H”: Master, “L”: Slave) Received data output pin Power saving control input pin (“H”：Change to “Codec mode”, “L”：Change to “Power OFF mode”) Block Diagram 7 BAT 6 BUS 5 GND BAT MS Thermal Shutdown (TSD) 8 Under Voltage Lockout (UVLO) Power on Reset (POR) Regulator To each block 30kΩ LOGIC RXD Low Pass Filter 1 Decoder Wakeup Timer Slope Control TXD 4 Arbiter Encoder Dominant Timeout Counter (DTC) Controller NSLP 2 CLK 3 Slope Timer Timing Generator Oscillator Figure 3. Block Diagram www.rohm.com © 2017 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 2/20 TSZ02201-0E2E0H600190-1-2 2019.03.26 Rev.003 BD41000AFJ-C Description of Blocks State Transition Diagram BD41000AFJ-C is built-in “Power OFF Mode”, “Through Mode”, “RX Through Mode” other than “CODEC Mode” for power saving control. Each mode is controlled by NSLP, BUS, and TXD pins. Non-power Supply When VBAT Pin A and GND > Pin B, the P-N junction operates as a parasitic diode. When GND > Pin B, the P-N junction operates as a parasitic transistor. Parasitic diodes inevitably occur in the structure of the IC. The operation of parasitic diodes can result in mutual interference among circuits, operational faults, or physical damage. Therefore, conditions that cause these diodes to operate, such as applying a voltage lower than the GND voltage to an input pin (and thus to the P substrate) should be avoided. Resistor Transistor (NPN) Pin A Pin B C E Pin A N P+ P N N P+ N Pin B B Parasitic Elements N P+ N P N P+ B N C E Parasitic Elements P Substrate P Substrate GND GND Parasitic Elements GND Parasitic Elements GND N Region close-by Figure 22. Example of Monolithic IC Structure 13. Ceramic Capacitor When using a ceramic capacitor, determine the dielectric constant considering the change of capacitance with temperature and the decrease in nominal capacitance due to DC bias and others. 14. Area of Safe Operation (ASO) Operate the IC such that the output voltage, output current, and the maximum junction temperature rating are all within the Area of Safe Operation (ASO). 15. Thermal Shutdown Circuit(TSD) This IC has a built-in thermal shutdown circuit that prevents heat damage to the IC. Normal operation should always be within the IC’s maximum junction temperature rating. If however the rating is exceeded for a continued period, the junction temperature (Tj) will rise which will activate the TSD circuit that will turn OFF all output pins. When the Tj falls below the TSD threshold, the circuits are automatically restored to normal operation. Note that the TSD circuit operates in a situation that exceeds the absolute maximum ratings and therefore, under no circumstances, should the TSD circuit be used in a set design or for any purpose other than protecting the IC from heat damage. www.rohm.com © 2017 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 17/20 TSZ02201-0E2E0H600190-1-2 2019.03.26 Rev.003 BD41000AFJ-C Ordering Information B D 4 1 0 0 0 A F Part Number J － Package FJ: SOP-J8 C E 2 Product Rank C: for Automotive Packaging and forming specification E2: Embossed tape and reel Marking Diagrams SOP-J8 (TOP VIEW) Part Number Marking 4 1 0 0 A LOT Number 1PIN MARK Part Number Marking 4100A www.rohm.com © 2017 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 Package SOP-J8 Orderable Part Number BD41000AFJ-CE2 18/20 TSZ02201-0E2E0H600190-1-2 2019.03.26 Rev.003 BD41000AFJ-C Physical Dimension, Tape and Reel Information Package Name www.rohm.com © 2017 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 SOP-J8 19/20 TSZ02201-0E2E0H600190-1-2 2019.03.26 Rev.003 BD41000AFJ-C Revision History Date Revision Changes New Release (For additional information, the changed contents is shown from BD41000FJ-C Rev0.02) 08.Aug.2017 001 21.Seq.2017 002 26.Mar.2019 003 All Modified from BD41000FJ-C to BD41000AFJ-C P5 Added detail information about wakeup decision method of slave node P7 Added detail information about wakeup decision method of master node P9,P10 Modified arbitration function explanation P18 Modified ordering information and marking diagrams P12 Added explanation of RL P1 Added the ApplicationNote information P9 1. In case of collision is happened by transmitting from other node at the same time Added a caution about the time to validate the transmit after an arbitration defeat occurred. www.rohm.com © 2017 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 20/20 TSZ02201-0E2E0H600190-1-2 2019.03.26 Rev.003 Notice Precaution on using ROHM Products 1. If you intend to use our Products in devices requiring extremely high reliability (such as medical equipment (Note 1), aircraft/spacecraft, nuclear power controllers, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance. Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific Applications. (Note1) Medical Equipment Classification of the Specific Applications JAPAN USA EU CHINA CLASSⅢ CLASSⅡb CLASSⅢ CLASSⅢ CLASSⅣ CLASSⅢ 2. ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which a failure or malfunction of our Products may cause. The following are examples of safety measures: [a] Installation of protection circuits or other protective devices to improve system safety [b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure 3. Our Products are not designed under any special or extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any special or extraordinary environments or conditions. If you intend to use our Products under any special or extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of product performance, reliability, etc, prior to use, must be necessary: [a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents [b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust [c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves [e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items [f] Sealing or coating our Products with resin or other coating materials [g] Use of our Products without cleaning residue of flux (Exclude cases where no-clean type fluxes is used. However, recommend sufficiently about the residue.); or Washing our Products by using water or water-soluble cleaning agents for cleaning residue after soldering [h] Use of the Products in places subject to dew condensation 4. The Products are not subject to radiation-proof design. 5. Please verify and confirm characteristics of the final or mounted products in using the Products. 6. In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse, is applied, confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect product performance and reliability. 7. De-rate Power Dissipation depending on ambient temperature. When used in sealed area, confirm that it is the use in the range that does not exceed the maximum junction temperature. 8. Confirm that operation temperature is within the specified range described in the product specification. 9. ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in this document. Precaution for Mounting / Circuit board design 1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product performance and reliability. 2. In principle, the reflow soldering method must be used on a surface-mount products, the flow soldering method must be used on a through hole mount products. If the flow soldering method is preferred on a surface-mount products, please consult with the ROHM representative in advance. For details, please refer to ROHM Mounting specification Notice-PAA-E © 2015 ROHM Co., Ltd. All rights reserved. Rev.004 Precautions Regarding Application Examples and External Circuits 1. If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the characteristics of the Products and external components, including transient characteristics, as well as static characteristics. 2. You agree that application notes, reference designs, and associated data and information contained in this document are presented only as guidance for Products use. Therefore, in case you use such information, you are solely responsible for it and you must exercise your own independent verification and judgment in the use of such information contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of such information. Precaution for Electrostatic This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron, isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control). Precaution for Storage / Transportation 1. Product performance and soldered connections may deteriorate if the Products are stored in the places where: [a] the Products are exposed to sea winds or corrosive gases, including Cl 2, H2S, NH3, SO2, and NO2 [b] the temperature or humidity exceeds those recommended by ROHM [c] the Products are exposed to direct sunshine or condensation [d] the Products are exposed to high Electrostatic 2. Even under ROHM recommended storage condition, solderability of products out of recommended storage time period may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is exceeding the recommended storage time period. 3. Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads may occur due to excessive stress applied when dropping of a carton. 4. Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of which storage time is exceeding the recommended storage time period. Precaution for Product Label A two-dimensional barcode printed on ROHM Products label is for ROHM’s internal use only. Precaution for Disposition When disposing Products please dispose them properly using an authorized industry waste company. Precaution for Foreign Exchange and Foreign Trade act Since concerned goods might be fallen under listed items of export control prescribed by Foreign exchange and Foreign trade act, please consult with ROHM in case of export. Precaution Regarding Intellectual Property Rights 1. All information and data including but not limited to application example contained in this document is for reference only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any other rights of any third party regarding such information or data. 2. ROHM shall not have any obligations where the claims, actions or demands arising from the combination of the Products with other articles such as components, circuits, systems or external equipment (including software). 3. No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any third parties with respect to the Products or the information contained in this document. Provided, however, that ROHM will not assert its intellectual property rights or other rights against you or your customers to the extent necessary to manufacture or sell products containing the Products, subject to the terms and conditions herein. Other Precaution 1. This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM. 2. The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of ROHM. 3. In no event shall you use in any way whatsoever the Products and the related technical information contained in the Products or this document for any military purposes, including but not limited to, the development of mass-destruction weapons. 4. The proper names of companies or products described in this document are trademarks or registered trademarks of ROHM, its affiliated companies or third parties. Notice-PAA-E © 2015 ROHM Co., Ltd. All rights reserved. Rev.004 Datasheet General Precaution 1. Before you use our Products, you are requested to carefully read this document and fully understand its contents. ROHM shall not be in any way responsible or liable for failure, malfunction or accident arising from the use of any ROHM’s Products against warning, caution or note contained in this document. 2. All information contained in this document is current as of the issuing date and subject to change without any prior notice. Before purchasing or using ROHM’s Products, please confirm the latest information with a ROHM sales representative. 3. The information contained in this document is provided on an “as is” basis and ROHM does not warrant that all information contained in this document is accurate and/or error-free. ROHM shall not be in any way responsible or liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccuracy or errors of or concerning such information. Notice – WE © 2015 ROHM Co., Ltd. All rights reserved. Rev.001