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TCAN1043A-Q1

The TCAN1043A-Q1 is an electronic component from Texas Instruments. View the full TCAN1043A-Q1 datasheet below including specifications and datasheet sections.

Manufacturer

Texas Instruments

Category

CAN Transceivers

Overview

Table 2-1 shows a description of the jumper selections on the EVM with a short description of the function of each pin.

Table 2-1. Jumper Definitions

ConnectionTypeTransceiver PinDescription
JMP12-pin jumpernSTBMode control input, Standby input, integrated pull down
JMP2nSTBCAN transmit data input (LOW for dominant and HIGH for recessive bus states), integrated pull up
JMP2TXD
JMP2RXDCAN receive data output (LOW for dominant and HIGH for recessive bus states), tri-state
JMP216-pin jumperENMode control input, Enable Input, integrated pull down
JMP2INHInhibit output, controls system voltage regulators and supplies
JMP2nFAULTFault output, inverted logic
JMP2WAKEWake input terminal, high voltage input
JMP2INH_MASKINH_MASK input
JMP32-pin jumperCANH, CANLConnect 120-Ω CAN termination to the bus. Used separately for a single termination if EVM is at end of the CAN bus and termination is not in the cable. Used in combination with JMP5 to get to second CAN termination to represent the combined 60-Ω load for CAN transceiver parametric measurement.
JMP44-pin jumperCANH, CANLCAN bus connection (CANH, CANL) and GND
JMP52-pin jumperCANH, CANLConnect 120-Ω CAN termination to the bus. Used in combination with JMP3 to get to second CAN termination to represent the combined 60-Ω load for CAN transceiver parametric measurement.
TP1TXDCAN transmit data input
TP2, TP4CANHHigh-level CAN bus I/O line
TP3RXDCAN receive data output
TP5ENMode control input, Enable Input
TP6, TP7CANLLow-level CAN bus I/O line
TP8INHInhibit output, controls system voltage regulators and supplies
TP9Test point (loop)nFAULTFault output, inverted logic
TP10WAKEWake input terminal, high-voltage input
TP11V CC5-V supply voltage
TP12V IOI/O supply voltage
TP13V SUPReverse blocked battery supply input
TP14, TP15, TP16GNDGround connection

Features

The TCAN1043AEVM is populated with two 120-Ω power resistors selectable via jumpers between CANH and CANL. When using one resistor, the EVM is used as a terminated end of a bus. For electrical measurements to represent the total loading of the bus, use both 120-Ω resistors in parallel to give the standard 60-Ω load for parametric measurement. The EVM also has footprints for split termination, if needed for the application. Table 2-4 summarizes how to use these termination options. If using split termination, match the resistors. Calculate the CM filter frequency using: f C = 1 / (2πRC). Normally, the split capacitance is in the range of 4.7 nF to 100 nF. Keep in mind, this is the CM filter frequency, not a differential filter that impacts the differential CAN signal directly.

Table 2-4. Bus Termination Configuration

Termination120-Ω Resistors120-Ω ResistorsSplit Termination FootprintsSplit Termination FootprintsSplit Termination Footprints
JumperJMP3JMP4R9R14C6
No terminationOpenOpenNot availableNot availableNot available
120-Ω standard terminationShortedOpenNot availableNot availableNot available
60-Ω loadShortedShortedNot availableNot availableNot available
Split terminationOpenOpen60 Ω60 Ω4.7 nF

The EVM also has footprints for various protection schemes to enhance robustness for extreme system-level EMC requirements. Table 2-5 summarizes these options.

Table 2-5. Protection and Filtering Configuration

ConfigurationFootprint ReferenceUse CasePopulation and Description
Series resistors or CM chokeR7/R13 or L1 (common footprint)Direct CAN transceiver to bus connection Series-resistance protection, CAN transceiver to bus connectionR7 and R13 populated with 0 Ω (default population) R7 and R13 populated with MELF resistor as necessary for harsh EMC environment
Bus filtering capacitors transient protectionC2/C7Bus filterFilter noise as necessary for harsh EMC environment. Use filter capacitors in combination with L1 CM choke
Transient protectionC2/C7 or D1Transient and ESD protectionTo add extra protection for system level transients and ESD protection, TVS diode population option via D1 footprint or varistor population via C2/C7 footprint

Applications

The TCAN1043A-Q1 is designed to support CAN applications where ultra-low-power requirements exist. The applications include, but are not limited to: (≤ 1 Mbps), CAN FD applications up to 8 Mbps:

  • Classic CAN:
  • -Supports CAN with data rates up to 1 Mbps
  • CAN FD:
  • -Supports CAN FD timing requirements at 2 Mbps
  • -Supports CAN FD timing requirements at 5 Mbps
  • -Supports CAN FD messaging at 8 Mbps
  • 12-V and 24-V applications
  • Automotive
  • Transportation
  • Industrial
  • Telecom

Related Variants

The following components are covered by the same datasheet.

Part NumberManufacturerPackage
TCAN1043Texas Instruments—
TCAN1043ATexas Instruments—
TCAN1043AEVMTexas Instruments
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