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Texas Instruments SN65HVD231DR
- Part No.:
- SN65HVD231DR
- Manufacturer:
- Texas Instruments
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SN65HVD231DR.pdf
- Description:
- IC TRANSCEIVER HALF 1/1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,997
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Product details
Overview
SN65HVD231DR from Texas Instruments is a 3.3-V ISO 11898-2 compliant CAN bus transceiver with ultra-low sleep current (40 nA typical), thermal shutdown protection, ±16 kV HBM ESD rating on bus pins, and adjustable driver slew rate via external resistor on RS pin. It interfaces MCU CAN controllers to differential CANH/CANL physical bus in industrial automation and building control systems.
For engineers reviewing the SN65HVD231DR datasheet, SN65HVD231DR pinout, SN65HVD231DR application, or SN65HVD231DR equivalent, key selection criteria include sleep-mode current draw, RS-controlled slope adjustment range (0–100 kΩ), common-mode voltage tolerance (–2 V to 7 V), and compatibility with CANopen/DeviceNet protocols.
Technical Context
The SN65HVD231DR implements a full-duplex CAN physical layer transceiver with integrated driver and receiver circuits. Its RS pin enables three operational modes: high-speed (RS = GND), slope-controlled (RS pulled down via 10–100 kΩ), and ultra-low-power sleep (RS = VCC). In sleep mode, both driver and receiver are disabled-unlike the SN65HVD230's standby mode where only the driver is off.
It features open-circuit fail-safe design, glitch-free hot-plug power sequencing, and robust bus fault protection including cross-wire, loss-of-ground, overvoltage, and ±25 V common-mode transient immunity. The VREF pin provides a stable 0.5 × VCC reference for external biasing or monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0–3.6 V - matches standard 3.3-V logic rails; no level-shifting required for TI C2000, MSP430, or Sitara MCUs with CAN controllers. |
| Sleep Current | 40 nA typical - enables multi-year battery operation in remote sensor nodes without compromising CAN bus wake-up capability. |
| Data Rate | Up to 1 Mbps - supports full-speed CAN FD preambles and legacy CAN 2.0B networks in motor control and HVAC applications. |
| Bus ESD Rating | ±16 kV HBM on CANH/CANL - exceeds IEC 61000-4-2 Level 4, eliminating need for external TVS diodes in many industrial enclosures. |
| Common-Mode Range | –2 V to +7 V - accommodates ground offsets and noise in long cable runs across factory floors or building wiring. |
| Thermal Shutdown | 165 °C with 10 °C hysteresis - prevents latch-up during bus short-circuits or sustained dominant states without system-level intervention. |
| Input Impedance | 40–100 kΩ differential - allows up to 120 nodes on a single bus segment while maintaining signal integrity per ISO 11898-2. |
Pinout & Package
SN65HVD231DR is housed in an SOIC-8 package (4.90 mm × 3.91 mm body size) with standard 1.27 mm pitch. Pin 1 (D) is located at the top-left corner adjacent to the package notch or dot marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D | Driver input (TXD) | CMOS-level digital input from MCU CAN controller; LOW = dominant, HIGH = recessive state. |
| GND | Ground reference | Primary return path for supply and bus currents; must be low-impedance connection to system ground plane. |
| VCC | 3.3-V supply | Power rail for internal logic and analog circuitry; requires local 100-nF ceramic decoupling capacitor. |
| R | Receiver output (RXD) | CMOS-level digital output to MCU; LOW = dominant, HIGH = recessive; compatible with 3.3-V logic inputs. |
| VREF | Reference voltage output | 0.5 × VCC (±10%) buffered output; used for external comparator bias or bus voltage monitoring circuits. |
| CANL | Differential bus line (low) | Terminates to 120 Ω end-of-bus resistor; connects directly to twisted-pair CAN cable shield ground via 100 nF capacitor if needed. |
| CANH | Differential bus line (high) | Paired with CANL; differential swing ≥1.5 V dominant ensures reliable detection under EMI and ground shift. |
| RS | Mode select input | Controls functional state: GND = high-speed, 10–100 kΩ to GND = slope control, VCC = sleep (driver + receiver off). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low sleep current | 40 nA typical enables energy harvesting and battery-powered CAN nodes with >10-year shelf life. |
| Adjustable slew rate | RS pin accepts 0–100 kΩ pull-down to tune rise/fall times from 25 ns to 1200 ns, optimizing EMC in noisy environments. |
| Fail-safe open-circuit | Receiver outputs recessive (R = HIGH) when CANH/CANL are disconnected or floating - prevents false bus arbitration. |
| Hot-plug robustness | Glitch-free power-up/down sequencing eliminates bus glitches during live insertion or firmware reset events. |
| Integrated VREF | Stable 1.65 V (at VCC = 3.3 V) reference simplifies external bus voltage monitoring or termination biasing. |
Applications
| Industrial Automation | Motor Control |
|---|---|
Use Scenario: Distributed I/O modules communicating over CANopen in factory PLC networks with 50+ nodes on 100-m bus segments. IC Role / Device Role / Timing Role: Physical layer interface between ARM Cortex-M4 CAN controller and ruggedized field bus cabling. Use Value: ±25 V common-mode transient immunity prevents spurious resets during contactor switching; 40 nA sleep current extends maintenance intervals. | Use Scenario: Brushless DC motor drives with real-time torque feedback and status reporting via CAN bus in robotics cells. IC Role / Device Role / Timing Role: High-integrity bus transceiver ensuring sub-100 ns loop delay (<115 ns typical) for closed-loop timing-critical commands. Use Value: 1 Mbps data rate supports fast position updates; thermal shutdown protects against MOSFET failure-induced bus shorts. |
| HVAC Systems | Telecom Base Stations |
Use Scenario: Chiller plant controllers and zone sensors linked via DeviceNet in commercial buildings with mixed grounding schemes. IC Role / Device Role / Timing Role: Isolation-barrier-adjacent CAN transceiver interfacing to isolated microcontroller domains. Use Value: –2 V to +7 V common-mode range tolerates ground potential differences across HVAC ductwork and electrical rooms. | Use Scenario: Remote radio unit (RRU) health monitoring subsystems reporting temperature, voltage, and alarm status over CAN to baseband unit. IC Role / Device Role / Timing Role: Low-power bus node enabling always-on diagnostics without draining backup batteries during grid outages. Use Value: 40 nA sleep current allows >5 years of operation on coin-cell backup; ±16 kV HBM withstands ESD events in unshielded telecom cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CAN transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN65HVD230DR | Standby mode draws 370 μA (vs. 40 nA); driver off but receiver active during low-power state. | Suitable where continuous bus monitoring is required during idle periods (e.g., gateway nodes). | Select SN65HVD230DR when wake-on-CAN traffic is mandatory and microamp-level quiescent current is acceptable. |
| TJA1042T/3 | 5-V tolerant; higher 125 °C max ambient rating; no VREF pin; fixed slew rate (no RS pin). | Better suited for automotive under-hood use; lacks slope tuning and reference output for industrial calibration. | Choose TJA1042T/3 for AEC-Q100-compliant designs requiring extended temperature operation and 5-V MCU compatibility. |
Compared with SN65HVD230DR and TJA1042T/3, the SN65HVD231DR uniquely delivers nanoamp sleep current with full RS-configurable slope control and integrated VREF-making it optimal for battery-constrained, EMC-sensitive industrial nodes requiring flexible bus timing tuning.
Availability
SN65HVD231DR is available at Aetrix Electronics and suitable for industrial automation, motor control, and building management systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for SN65HVD231DR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies with over 50 years of innovation in industrial and automotive electronics.
The SN65HVD231DR belongs to TI's high-reliability CAN transceiver product line, designed specifically for harsh-environment industrial networks demanding robust ESD, thermal, and common-mode immunity alongside ultra-low power operation.
FAQ
What is the maximum data rate supported by the SN65HVD231DR?
The SN65HVD231DR supports data rates up to 1 Mbps, as specified in the ISO 11898-2 High-Speed CAN standard. This enables full utilization of legacy CAN 2.0B networks and compatibility with CAN FD physical layer preamble signaling. Measured loop delays (t(LOOP1) ≤115 ns typical) ensure timing margin for reliable sampling at maximum rate across temperature and voltage ranges.
How does the RS pin function on the SN65HVD231DR?
The RS pin on the SN65HVD231DR controls operational mode: grounded for high-speed mode (fastest edge rates), pulled down via 10–100 kΩ for slope control (adjustable rise/fall times), or tied to VCC for ultra-low-power sleep mode (40 nA). Unlike the SN65HVD230DR, the SN65HVD231DR disables both driver and receiver in sleep mode-requiring external wake-up assertion.
Does the SN65HVD231DR include built-in ESD protection?
Yes, the SN65HVD231DR provides ±16 kV HBM ESD protection on CANH and CANL pins, exceeding IEC 61000-4-2 Level 4 requirements. This eliminates the need for discrete TVS diodes in many industrial applications, reducing BOM count and PCB area while maintaining robustness against handling and system-level transients.
What is the purpose of the VREF pin on the SN65HVD231DR?
The VREF pin on the SN65HVD231DR delivers a buffered 0.5 × VCC reference voltage (e.g., 1.65 V at 3.3 V supply), accurate to ±10% over temperature and load. It supports external circuitry such as bus voltage monitors, termination bias networks, or comparator thresholds-enabling precise bus health diagnostics without additional voltage dividers or regulators.
Can the SN65HVD231DR operate with a 5-V supply?
No, the SN65HVD231DR is strictly a 3.3-V device with absolute maximum VCC rating of 6 V and recommended operating range of 3.0–3.6 V. Applying 5 V risks permanent damage. For 5-V systems, consider alternatives like the TJA1042T/3 or SN65HVD251, which are explicitly rated for 4.5–5.5 V operation and offer comparable CAN functionality.
SN65HVD231DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Transceiver
- Protocol:
- CANbus
- Number of Drivers/Receivers:
- 1/1
- Duplex:
- Half
- Receiver Hysteresis:
- 100 mV
- Data Rate:
- 1Mbps
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
SN65HVD231DR FAQ
1.How can I place an order for SN65HVD231DR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN65HVD231DR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SN65HVD231DR reliable?
The price and inventory of SN65HVD231DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN65HVD231DR is usually 5 days.
3.What payment methods are accepted for SN65HVD231DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN65HVD231DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN65HVD231DR?
SN65HVD231DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN65HVD231DR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SN65HVD231DR?
For technical support, including SN65HVD231DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN65HVD231DR requirements.
6.How does Aetrix verify that SN65HVD231DR is sourced from the original manufacturer or authorized distributors?
All SN65HVD231DR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SN65HVD231DR meets industry standards.
7.What is the process for return or replacement of SN65HVD231DR?
All SN65HVD231DR units undergo pre-shipment inspection (PSI). If there is an issue with SN65HVD231DR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SN65HVD231DR part is unused and in its original packaging.
Return procedure for SN65HVD231DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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