A-CAN收发器.pdf

1.General descriptionThe TJA1051 is a high-speed CAN transceiver that provides an interface between a Controller Area Network(CAN)protocol controller and the physical two-wire CAN bus.The transceiver is designed for high-speed CAN applications in the automotive industry,providing differential transmit and receive capability to(a microcontroller with)a CAN protocol controller.The TJA1051 belongs to the third generation of high-speed CAN transceivers from NXP Semiconductors,offering significant improvements over first-and second-generation devices such as the TJA1050.It offers improved ElectroMagnetic Compatibility(EMC)and ElectroStatic Discharge(ESD)performance,and also features:Ideal passive behavior to the CAN bus when the supply voltage is offTJA1051T/3 and TJA1051TK/3 can be interfaced directly to microcontrollers with supply voltages from 3 V to 5 VThe TJA1051 implements the CAN physical layer as defined in the current ISO11898 standard(ISO11898-2:2003,ISO11898-5:2007)and the pending updated version of ISO 11898-2:2016.Pending the release of the updated version of ISO11898-2:2016 including CAN FD and SAE J2284-4/5,additional timing parameters defining loop delay symmetry are specified.This implementation enables reliable communication in the CAN FD fast phase at data rates up to 5 Mbit/s.These features make the TJA1051 an excellent choice for all types of HS-CAN networks,in nodes that do not require a standby mode with wake-up capability via the bus.2.Features and benefits2.1General Fully ISO 11898-2:2003 compliant Timing guaranteed for data rates up to 5 Mbit/s in the CAN FD fast phase Suitable for 12 V and 24 V systems Low ElectroMagnetic Emission(EME)and high ElectroMagnetic Immunity(EMI)VIO input on TJA1051T/3 and TJA1051TK/3 allows for direct interfacing with 3 V to 5 V microcontrollers(available in SO8 and very small HVSON8 packages respectively)EN input on TJA1051T/E allows the microcontroller to switch the transceiver to a very low-current Off mode Available in SO8 package or leadless HVSON8 package(3.0 mm 3.0 mm)with improved Automated Optical Inspection(AOI)capabilityTJA1051High-speed CAN transceiverRev.8 12 July 2016Product data sheetTJA1051All information provided in this document is subject to legal disclaimers.NXP N.V.2016.All rights reserved.Product data sheetRev.8 12 July 2016 2 of 24NXP SemiconductorsTJA1051High-speed CAN transceiver Dark green product(halogen free and Restriction of Hazardous Substances(RoHS)compliant)AEC-Q100 qualified2.2Low-power management Functional behavior predictable under all supply conditions Transceiver disengages from the bus when not powered up(zero load)2.3Protection High ElectroStatic Discharge(ESD)handling capability on the bus pins Bus pins protected against transients in automotive environments Transmit Data(TXD)dominant time-out function Undervoltage detection on pins VCC and VIO Thermally protected3.Quick reference data Table 1.Quick reference dataSymbolParameterConditionsMinTypMaxUnitVCCsupply voltage4.5-5.5VVIOsupply voltage on pin VIO2.8-5.5VVuvd(VCC)undervoltage detection voltage on pin VCC3.5-4.5VVuvd(VIO)undervoltage detection voltage on pin VIO1.32.02.7VICCsupply currentSilent mode0.112.5mANormal mode;bus recessive2.5510mANormal mode;bus dominant205070mAIIOsupply current on pin VIONormal and Silent modesrecessive;VTXD=VIO-80250Adominant;VTXD=0 V-350500AVESDelectrostatic discharge voltageIEC 61000-4-2 at pins CANH and CANL8-+8kVVCANHvoltage on pin CANH58-+58VVCANLvoltage on pin CANL58-+58VTvjvirtual junction temperature40-+150CTJA1051All information provided in this document is subject to legal disclaimers.NXP N.V.2016.All rights reserved.Product data sheetRev.8 12 July 2016 3 of 24NXP SemiconductorsTJA1051High-speed CAN transceiver4.Ordering information 1TJA1051T/3 and TJA1051TK/3 with VIOpin;TJA1051T/E with EN pin.5.Block diagram Table 2.Ordering informationType numberPackage NameDescriptionVersionTJA1051TSO8plastic small outline package;8 leads;body width 3.9 mmSOT96-1TJA1051T/31SO8plastic small outline package;8 leads;body width 3.9 mmSOT96-1TJA1051T/E1SO8plastic small outline package;8 leads;body width 3.9 mmSOT96-1TJA1051TK/31HVSON8plastic thermal enhanced very thin small outline package;no leads;8 terminals;body 3 3 0.85 mmSOT782-1(1)In a transceiver without a VIO pin,the VIO input is internally connected to VCC.(2)Only present in the TJA1051T/E.Fig 1.Block diagramTEMPERATUREPROTECTIONTIME-OUTMODECONTROLDRIVERTXD1VI/O(1)S8EN(2)5RXD4SLOPECONTROL ANDDRIVERVCCCANHCANL76532GNDTJA1051015aaa036VCCVIO(1)TJA1051All information provided in this document is subject to legal disclaimers.NXP N.V.2016.All rights reserved.Product data sheetRev.8 12 July 2016 4 of 24NXP SemiconductorsTJA1051High-speed CAN transceiver6.Pinning information6.1Pinning 6.2Pin description 1HVSON8 package die supply ground is connected to both the GND pin and the exposed center pad.The GND pin must be soldered to board ground.For enhanced thermal and electrical performance,i。