IFX1040SJ Infineon Technologies, IFX1040SJ Datasheet
IFX1040SJ
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IFX1040SJ Summary of contents
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High Speed CAN-Transceiver with Stand-By Mode and Bus wake- Rev. 1.0, 2011-11 ...
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Table of Contents 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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... The IFX1040SJ has two operation modes, the normal and the stand-by mode. These modes can be chosen by the STB pin. If the IFX1040SJ is in stand-by mode and a message on the bus is detected, the IFX1040SJ changes the level at the RxD pin corresponding to the bus signal (wake-up flag). ...
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... Pin Configuration TxD GND V RxD Figure 1 Pin Configuration IFX1040SJ (top view) Table 1 Pin Definitions and Functions IFX1040SJ Pin No. Symbol Function 1 TxD CAN transmit data input; 20 kΩ pull-up, LOW in dominant state 2 GND Ground Supply input; 100 nF decoupling capacitor required ...
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... Block Diagram Wake-Up Logic 7 CANH 6 CANL 5 SPLIT 2 GND Figure 2 Block Diagram IFX1040SJ Data Sheet IFX1040 Driver Output Temp.- Stage Protection = Receiver 5 IFX1040 Block Diagram 8 Mode Control STB Logic TxD + timeout MUX 4 RxD Rev. 1.0, 2011-11-4 ...
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... This mode is designed for the normal data transmission/reception within the HS-CAN network. Transmission The signal from the μC is applied to the TxD input of the IFX1040SJ. Now the bus driver switches the CANH/L output stages to transfer this input signal to the CAN bus lines. ...
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TxD Time-out Feature If the TxD signal is dominant for a time t > t This is realized to prevent the bus from being blocked permanently dominant due to an error like in case of a malfunctioning microcontroller. The transmission ...
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... Change into Standby Mode during CAN Bus Failure It is possible to change from normal mode into the standby mode if the bus is dominant due to a bus failure without setting the RxD wake flag to LOW. The advantage is, that the IFX1040SJ can be kept in the standby mode even if a bus failure occurs. ...
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Wake-up via CAN Message During standby mode, a dominant CAN message on the bus longer than the filtering time t > t activation of the wake-up. The wake-up during standby mode is signaled with the RxD output pin. A dominant ...
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Split Circuit The split circuitry is activated during normal mode and deactivated (SPLIT pin floating) during standby mode. The SPLIT pin is used to stabilize the recessive common mode signal in normal mode. This is realized with a stabilized voltage ...
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Electrical Characteristics Table 3 Absolute Maximum Ratings Parameter Voltages Supply voltage CAN bus voltage (CANH, CANL) CAN bus differential voltage CANH, CANL, SPLIT Input voltage at SPLIT Logic voltages at STB, TxD, RxD Electrostatic discharge voltage at CANH, CANL, ...
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Table 5 Electrical Characteristics = 60 Ω; -40 °C < 4.75 V < < 5. into pin; unless otherwise specified. Parameter Current Consumption Current consumption Current consumption Current consumption Receiver Output RxD HIGH level output ...
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Table 5 Electrical Characteristics (cont’ Ω; -40 °C < 4.75 V < < 5. into pin; unless otherwise specified. Parameter Bus Transmitter CANL/CANH recessive output voltage CANH, CANL recessive output voltage difference CANL ...
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Table 5 Electrical Characteristics (cont’ Ω; -40 °C < 4.75 V < < 5. into pin; unless otherwise specified. Parameter Min. recessive time for bus wake-up signal (RxD low to high) TxD permanent ...
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Diagrams 47 pF Figure 8 Test Circuit for Dynamic Characteristics Data Sheet 7 CANH Ω CANL GND STB 1 TxD 5 SPLIT 4 RxD 100 nF Rev. 1.0, 2011-11-4 ...
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V TxD V μC GND V DIFF V RxD V C μ GND Figure 9 Timing Diagrams for Dynamic Characteristics Data Sheet t d(L DIFF(d) t d(L μ t d(L ...
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Application 4.7 nF Ω Ω CAN V Bus µF Ω Ω 4.7 nF µF Figure 10 Application Circuit Data Sheet IFX1040 SJ 51 µH 7 CANH STB 6 CANL ...
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Package Outlines 1.27 +0.1 0.41 -0.05 Index Marking Index Marking (Chamfer) 1) Does not include plastic or metal protrusion of 0.15 max. per side Figure 11 PG-DSO-8 (Plastic Dual Small Outline), lead free version Green Product (RoHS compliant) To ...
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Revision History Revision Date Changes 1.0 2011-11-04 Data Sheet Data Sheet 19 IFX1040 Revision History Rev. 1.0, 2011-11-4 ...
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... Infineon Technologies failure of such components can reasonably be expected to cause the failure of that life- support automotive, aviation and aerospace device or system or to affect the safety or effectiveness of that device or system ...