具有待机模式和环回功能的 3.3V CAN 收发器 - SN65HVD233

SN65HVD233 (正在供货)

具有待机模式和环回功能的 3.3V CAN 收发器

 

描述

The SN65HVD233, SN65HVD234, and SN65HVD235 are used in applications employing the controller area network (CAN) serial communication physical layer in accordance with the ISO 11898 standard. As a CAN transceiver, each provides transmit and receive capability between the differential CAN bus and a CAN controller, with signaling rates up to 1 Mbps.

Designed for operation in especially harsh environments, the devices feature cross-wire protection, overvoltage protection up to ±36 V, loss of ground protection, overtemperature (thermal shutdown) protection, and common-mode transient protection of ±100 V. These devices operate over a wide –7 V to 12 V common-mode range. These transceivers are the interface between the host CAN controller on the microprocessor and the differential CAN bus used in industrial, building automation, transportation, and automotive applications.

Modes: The RS pin (pin 8) of the SN65HVD233, SN65HVD234, and SN65HVD235 provides three modes of operation: high-speed, slope control, and low-power standby mode. The high-speed mode of operation is selected by connecting pin 8 directly to ground, allowing the driver output transistors to switch on and off as fast as possible with no limitation on the rise and fall slope. The rise and fall slope can be adjusted by connecting a resistor between the RS pin and ground. The slope will be proportional to the pin’s output current. With a resistor value of 10 kΩ the device driver will have a slew rate of ∼15 V/µs and with a value of 100 kΩ the device will have ∼2.0 V/µs slew rate. For more information about slope control, refer to Feature Description.

The SN65HVD233, SN65HVD234, and SN65HVD235 enter a low-current standby (listen only) mode during which the driver is switched off and the receiver remains active if a high logic level is applied to the RS pin. If the local protocol controller needs to transmit a message to the bus it will have to return the device to either high-speed mode or slope control mode via the RS pin.

Loopback (SN65HVD233): A logic high on the loopback (LBK) pin (pin 5) of the SN65HVD233 places the bus output and bus input in a high-impedance state. Internally, the D to R path of the device remains active and available for driver to receiver loopback that can be used for self-diagnostic node functions without disturbing the bus. For more information on the loopback mode, refer to Feature Description.

Ultra Low-Current Sleep (SN65HVD234): The SN65HVD234 enters an ultra low-current sleep mode in which both the driver and receiver circuits are deactivated if a low logic level is applied to EN pin (pin 5). The device remains in this sleep mode until the circuit is reactivated by applying a high logic level to pin 5.

Autobaud Loopback (SN65HVD235): The AB pin (pin 5) of the SN65HVD235 implements a bus listen-only loopback feature which allows the local node controller to synchronize its baud rate with that of the CAN bus. In autobaud mode, the bus output of the driver is placed in a high-impedance state while the bus input of the receiver remains active. There is an internal D pin to R pin loopback to assist the controller in baud rate detection, or the autobaud function. For more information on the autobaud mode, refer to Feature Description.

特性

  • Single 3.3-V Supply Voltage
  • Bus Pins Fault Protection Exceeds ±36 V
  • Bus Pins ESD Protection Exceeds ±16 kV HBM
  • Compatible With ISO 11898-2
  • GIFT/ICT Compliant
  • Data Rates up to 1 Mbps
  • Extended –7 V to 12 V Common Mode Range
  • High-Input Impedance Allows for 120 Nodes
  • LVTTL I/Os are 5-V Tolerant
  • Adjustable Driver Transition Times for Improved
    Emissions Performance
  • Unpowered Node Does Not Disturb the Bus
  • Low Current Standby Mode, 200-µA (Typical)
  • SN65HVD233: Loopback Mode
  • SN65HVD234: Ultra Low Current Sleep Mode
    • 50-nA Typical Current Consumption
  • SN65HVD235: Autobaud Loopback Mode
  • Thermal Shutdown Protection
  • Power up and Down With Glitch-Free Bus Inputs
    and Outputs
    • High-Input Impedance With Low VCC
    • Monolithic Output During Power Cycling

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参数 与其它产品相比 CAN/LIN

 
Protocols
Supply Voltage(s) (V)
Bus Fault Voltage (V)
Common Mode Voltage (V)
Signaling Rate (Max) (Mbps)
Low Power Mode
HBM ESD (kV)
IEC 61000-4-2 Contact (+/- kV)
Isolated
Rating
Operating Temperature Range (C)
Package Group
Pin/Package
SN65HVD233 SN55HVD251 SN65HVD1050 SN65HVD251 SN65HVD252 SN65HVD253
CAN    CAN    CAN    CAN    CAN    CAN   
3.0 to 3.6    4.5 to 5.5    4.5 to 5.5    4.5 to 5.5    4.75 to 5.25    4.75 to 5.25   
-36 to 36    -36 to 36    -27 to 40    -36 to 36    -27 to 40    -27 to 40   
-7 to 12    -7 to 12    -12 to 12    -7 to 12    -5 to 10    -5 to 10   
1    1    1    1    1    1   
Silent    Silent    Silent    Silent    Silent    Silent   
16    14    4    14    12    12   
N/A    N/A    N/A    N/A    N/A    N/A   
No    No    No    No    No    No   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 125    -55 to 125    -40 to 125    -40 to 125    -40 to 85    -40 to 85   
SOIC    SON    SOIC    PDIP
SOIC   
SOIC    SOIC   
8SOIC    8SON    8SOIC    8PDIP
8SOIC   
8SOIC    8SOIC   

其它合格版本 SN65HVD233

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增强型产品 SN65HVD233-EP 支持国防、航天和医疗应用
高温 SN65HVD233-HT 用于严苛环境下的高温产品
汽车电子 SN65HVD233-Q1 Q100 适用于追求零缺陷的高可靠性汽车电子应用的器件