SN65HVD232 product image


Interface - Drivers, Receivers, Transceivers
Texas Instruments


The SN65HVD230, SN65HVD231, and  SN65HVD232  controller area network (CAN) transceivers are designedfor use with the Texas Instruments TMS320Lx240x? 3.3-V DSPs with CAN controllers, or with equivalentdevices. They are intended for use in applications employing the CAN serial communication physical layer inaccordance with the ISO 11898 standard. Each CAN transceiver is designed to provide differential transmitcapability to the bus and differential receive capability to a CAN controller at speeds up to 1 Mbps.Designed for operation in especially-harsh environments, these devices feature cross-wire protection,loss-of-ground and overvoltage protection, overtemperature protection, as well as wide common-mode range.The transceiver interfaces the single-ended CAN controller with the differential CAN bus found in industrial,building automation, and automotive applications. It operates over a –2-V to 7-V common-mode range on thebus, and it can withstand common-mode transients of ±25 V.On the SN65HVD230 and SN65HVD231, pin 8 provides three different modes of operation: high-speed, slopecontrol, and low-power modes. The high-speed mode of operation is selected by connecting pin 8 to ground,allowing the transmitter output transistors to switch on and off as fast as possible with no limitation on the riseand fall slopes. The rise and fall slopes can be adjusted by connecting a resistor to ground at pin 8, since theslope is proportional to the pin’s output current. This slope control is implemented with external resistor valuesof 10 kΩ, to achieve a 15-V/μs slew rate, to 100 kΩ, to achieve a 2-V/μs slew rate. See the ApplicationInformation section of this data sheet.The circuit of the SN65HVD230 enters a low-current standby mode during which the driver is switched off andthe receiver remains active if a high logic level is applied to pin 8. The DSP controller reverses this low-currentstandby mode when a dominant state (bus differential voltage > 900 mV typical) occurs on the bus.The unique difference between the SN65HVD230 and the SN65HVD231 is that both the driver and the receiverare switched off in the SN65HVD231 when a high logic level is applied to pin 8 and remain in this sleep modeuntil the circuit is reactivated by a low logic level on pin 8.The Vref pin 5 on the SN65HVD230 and SN65HVD231 is available as a VCC/2 voltage reference.The SN65HVD232 is a basic CAN transceiver with no added options; pins 5 and 8 are NC, no connection.


SN65HVD232 Features


• Operates With a 3.3-V Supply
• Low Power Replacement for the PCA82C250Footprint
• Bus/Pin ESD Protection Exceeds 16 kV HBM
• High Input Impedance Allows for 120 Nodeson a Bus
• Controlled Driver Output Transition Times forImproved Signal Quality on the SN65HVD230and SN65HVD231
• Unpowered Node Does Not Disturb the Bus
• Compatible With the Requirements of theISO 11898 Standard
• Low-Current SN65HVD230 Standby Mode370 μA Typical
• Low-Current SN65HVD231 Sleep Mode40 nA Typical
• Designed for Signaling Rates† up to1 Megabit/Second (Mbps)
• Thermal Shutdown Protection
• Open-Circuit Fail-Safe Design
• Glitch-Free Power-Up and Power-DownProtection for Hot-Plugging Applications


SN65HVD232 Applications


• Motor Control
• Industrial Automation
• Basestation Control and Status
• Robotics
• Automotive
• UPS Control

Number of Drivers/Receivers1/1
Voltage - Supply3 V ~ 3.6 V
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