SN65HVD230DR IC

Technical Specifications of SN65HVD230DR

Datasheet	SN65HVD230DR datasheet
Category	Integrated Circuits (ICs)
Family	Interface – Drivers, Receivers, Transceivers
Manufacturer	Texas Instruments
Series	–
Packaging	Tape & Reel (TR)
Part Status	Active
Type	Transceiver
Protocol	CAN
Number of Drivers/Receivers	1/1
Duplex	Half
Receiver Hysteresis	100mV
Data Rate	1Mbps
Voltage – Supply	3 V ~ 3.6 V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154″, 3.90mm Width)
Supplier Device Package	8-SOIC

SN65HVD230DR Description

The SN65HVD230, 232, and 231 can all work with the ISO 11898-2 CAN Physical Layer standard. These devices can handle data rates of up to 1 Mbps and have several ways to protect both the device and the CAN network. The SN65HVD23x transceivers are used in 3.3 V Ps, MCUs, and DSPs from Texas Instruments with CAN controllers or similar protocol controllers. The devices are for CAN serial communication applications that follow ISO 11898.

Cross-wire protection, loss of ground, overvoltage, overtemperature protection, and a wide common mode range of operation are all built into these devices. The CAN transceiver connects the single-ended host CAN protocol controller to the differential CAN bus in industrial, building automation, and car applications. These devices can work from -2 V to 7 V and handle 25 V common mode transients on the bus.

The SN65HVD230 and the SN65HVD231 provide high-speed, slope control and low-power modes accessible via the RS pin (pin 8). By connecting the RS pin to the earth, the output transistors of the transmitter can turn on and off as quickly as possible without limiting the slopes of the rise and fall. You can change the rise and fall slopes by connecting a resistor between the RS pin and the ground. Pin output current determines slope. With a 10 k resistor, the device’s slew rate is 15 V/s; with a 100 k resistor, it’s 2 V/s.

If the RS pin is high-logic, the SN65HVD230 goes into a low-current sleep mode (listen only) with the driver off and the receiver on. In this lower-power mode, the CAN controller can watch the bus for the activity to know when to switch the transceiver back to slope control mode or regular mode.

When the host controller (MCU or DSP) wants to send a message to the bus or receives bus traffic while the device is in standby mode, it puts the device back into transmitting mode (high speed or slope control). Unlike the SN65HVD230, the SN65HVD231 turns off the driver and receiver when the RS pin is high. In sleep mode, the device can’t send or receive bus messages. The thing will sleep until the RS pin is set to low logic.

Features

• Uses a single 3.3 V Supply to work.
• Compatible with Standard ISO 11898-2.
• Replaces the PCA82C250 footprint with a low-power version.
• The ESD protection for bus pins is more than 16 kV HBM.
• There can be up to 120 nodes on a bus if the input impedance is high.

Detailed Description

The controller area network (CAN) bus protocol and physical layers are used in high-speed serial communication according to the ISO 11898 family of standards (transceivers). It offers programmable data speeds of up to 1 Mbps, real-time control, the ability to work with numerous masters, and robust, redundant error-checking methods to ensure data transmission reliability.

It can link intelligent gadgets, sensors, and actuators on a factory floor or in a machine’s chassis, both of which have challenging electrical environments. The lower layers of the ISO/OSI reference model are implemented by the SN65HVD23x family of 3.3 V CAN transceivers using the ISO11898-2 standard. This connects the CAN controller of Texas Instruments Ps, MCUs, and DSPs, such as the TMS320Lx240x 3.3 V DSPs, to the physical signalling output.

Feature Description

Although the SN65HVD230/231/232 have the same pins, their functions differ. Depending on the application, the same circuit boards may be utilized with them. These transceivers can handle signalling rates of up to 1 Mbps and operate from a single 3.3 V supply. Moreover, they have thermal shutdown protection, bus fault prevention, open-circuit receiver failsafe, and 16 kV HBM ESD protection on the bus pins. The receiver’s fail-safe architecture ensures that the output will remain a logic high even if the bus wires short out.

When VCC is low, the bus pins are maintained in a high-impedance state. This is done in hot-plugging applications to safeguard the bus from errors during power-up and power-down. Due to the high impedance, a node without power cannot move the bus. The output impedance of most transceivers is very low without this capability. This indicates that the transceiver consumes a lot of power when turned off, which could impact the entire bus.

Vref Voltage Reference

The Vref pin (pin 5) on the SN65HVD230 and SN65HVD231 can be used as a voltage reference for VCC/2. This pin can be linked to the split termination’s common mode point further to stabilise the common mode voltage on the bus. The Vref pin can be left floating if it is not being used.

Thermal Shutdown

If there is a thermal shutdown because of a high ambient temperature or too much output current, the driver will be turned off, and the bus pins will become high impedance. During thermal shutdown, the path from the D pin to the bus is blocked, and the CAN bus pins have high resistance and are biased to a low level. The driver will be turned back on, and operations will restart normally once the thermal shutdown condition has been resolved and the junction temperature has fallen below the temperature. During a thermal shutdown, the path from the receiver to the R pin stays active.

Device Functional Modes

● High-Speed Mode

On the RS pin, a logic low activates the high-speed mode (pin 8). The high-speed mode of operation is frequently employed in industrial settings. The rise and fall slopes of the output are unrestricted in high-speed mode, which allows the output to transition as soon as feasible. If the high-speed variations interfere with how the function of the emissions, slope control mode can be employed. Direct connections to P, MCU, or DSP general-purpose output pins can be used to toggle between a logic-low level (1.2 V) for high-speed operation and a logic-high level (> 0.75 VCC) for standby if the application needs to operate in both high-speed mode and low-power standby mode.

Conclusion

In conclusion, the SN65HVD23x family of CAN transceivers is a flexible and reliable choice for applications that need reliable communication in harsh environments. These devices work well and use power efficiently because they have various safety features and different running methods. Also, ICRFQ, a reputable Chinese electronic wholesaler, sells the SN65HVD230DR fairly, making getting these transceivers for your project easier than ever. Our skilled team and quick delivery will ensure you have all the tools you need to finish your project. Don’t be afraid to check out ICRFQ to find out how we can help you with your next project.

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