SN65HVD255DR - 1Mbps Turbo CAN Transceiver | TI
MPN: SN65HVD255DR ✓ نشطSN65HVD255DR نظرة عامة
A CAN transceiver is the physical-layer interface between a CAN protocol controller and the twisted-pair bus, converting controller TXD/RXD logic signals into differential CANH/CANL signals. Within the CAN system hierarchy (application layer, protocol controller, transceiver, bus), the transceiver provides the drive strength, common-mode tolerance, and ESD/fault robustness required for reliable communication in harsh electrical environments.
Key features include fast loop propagation times that enhance timing margins on long, heavily loaded networks; functional-safety-oriented features per the TI datasheet; dominant and recessive output drive compliant with ISO 11898-2; and internal protection including thermal shutdown and short-circuit current limiting. The device operates from a nominal 5V supply. Low electromagnetic emission and high immunity make it suitable for demanding automotive and industrial buses.
Typical applications include industrial automation and motor drives, building and climate control automation, security systems, and telecom base station status and control networks. In these systems the Turbo CAN fast loop times allow more nodes, longer cable runs, or higher bit rates than standard transceivers.
When designing with the SN65HVD255DR, terminate both bus ends with 120-ohm resistors, place a 0.1uF bypass capacitor close to VCC, and keep the CANH/CANL traces symmetric and short to preserve signal integrity at extended data rates.
بدائل مباشرة لـ SN65HVD255DR — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع SN65HVD255DR (نفس عامل الشكل والبصمة) — يختلف في Data Rate, Duplex, Function, Package, Protocol.
SN65HVD256DR
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
SN65HVD255QDRQ1
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←SN65HVD251DR
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
TCAN1057A-Q1
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
TJA1051T/3/1
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←MCP2551-E/SN
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
SN65HVD255DR المواصفات
| الوظيفة | CAN Transceiver |
| Protocol | CANbus (ISO 11898-2) |
| معدل البيانات | In excess of 1 Mbps |
| جهد التغذية | 5 V nominal |
| Drivers/Receivers | 1/1 |
| Duplex | Half |
| Loop Time | Fast loop times (Turbo CAN) |
| درجة حرارة التشغيل | -40C to +125C |
| العلبة | 8-SOIC (D) |
| نوع التركيب | Surface Mount |
| Protection | Thermal shutdown, short-circuit current limiting |
| Family | SN65HVD25x Turbo CAN |
| Reel Size | Standard 2500 units per reel (T/R) |
| حالة RoHS | Compliant |
تكوين أطراف SN65HVD255DR
| دبوس 1 | TXD — Transmit data input from CAN controller |
| دبوس 2 | GND — Ground reference |
| دبوس 3 | VCC — 5V supply; place 0.1uF bypass capacitor close to pin |
| دبوس 4 | RXD — Receive data output to CAN controller |
| دبوس 5 | VREF — Reference voltage output (family-defined; verify per datasheet SLLSE76) |
| دبوس 6 | CANL — Low-level CAN bus line |
| دبوس 7 | CANH — High-level CAN bus line |
| دبوس 8 | RS — Slew-rate select / mode control pin |
التطبيقات النموذجية
SN65HVD255DR مناسب لـ 6 التطبيقs: Industrial Automation and Motor Drives, Building and Climate Control Automation, Automotive Body and Powertrain Networks, Telecom Base Station Control, Security and Surveillance Systems, Medical Equipment Interconnect.
Industrial Automation and Motor Drives
The SN65HVD255DR fits industrial automation and motor-drive CAN buses where nodes are many and cable runs are long: its Turbo CAN fast loop times restore timing margin at data rates above 1 Mbps, when standard transceivers would accumulate too much propagation delay. Positioned between the MCU CAN controller TXD/RXD and the twisted-pair bus, it drives CANH/CANL per ISO 11898-2 with short-circuit current limiting and thermal shutdown protecting against bus faults. With both bus ends terminated at 120 ohms, the enhanced timing margin supports more nodes and longer trunks than conventional transceivers in the same 8-SOIC footprint.
موصى به
Building and Climate Control Automation
HVAC and building-management networks commonly use CAN at 125 kbps to 1 Mbps across long, heavily loaded cabling, exactly where the SN65HVD255DR's fast loop times add margin. The transceiver converts the controller's logic-level TX/RX into differential bus signals, tolerating ground shifts common in multi-room installations, and its -40C to +125C range suits rooftop and mechanical-room environments. Thermal shutdown and current limiting protect against wiring faults during installation. Because it operates from a 5V rail standard in industrial control panels, no extra level-shifting supply is required, simplifying BOM and panel design.
موصى به
Automotive Body and Powertrain Networks
For automotive CAN segments requiring speed, the SN65HVD255DR provides ISO 11898-2 high-speed signaling with low electromagnetic emission, important for passing CISPR-style EMC testing on body and powertrain buses. Its fast loop times help maintain bit timing on long harnesses with many ECUs, and the -40C to +125C operating range covers underhood and chassis environments. For formal AEC-Q100 programs, the identical-die SN65HVD255QDRQ1 variant should be specified. Designers upgrading toward CAN FD can drop in the pin-compatible TCAN1057A-Q1 without PCB change, protecting the layout investment.
موصى به
Telecom Base Station Control
Base station status-and-control backplanes frequently carry CAN across multi-card shelves, creating long, highly loaded networks. The SN65HVD255DR's fast loop times and >1Mbps capability give the timing margin needed to keep bit-rate and cable-length budgets positive at high node counts, which conventional transceivers cannot match. Its short-circuit limiting protects cards during hot-swap and maintenance, while low emissions prevent interference with sensitive RF front ends. Powered from the standard 5V shelf supply, it drops into any 8-SOIC footprint, and the 120-ohm backplane termination convention applies unchanged.
موصى به
Security and Surveillance Systems
Large security installations use CAN to link door controllers, sensors, and camera-control units over long cable runs. The SN65HVD255DR's enhanced timing margin allows more nodes per segment at higher bit rates than standard transceivers, reducing repeater count in multi-floor systems. Its differential receiver with common-mode tolerance resists the electrical noise of access-control locks, motors, and lighting loads sharing conduits. Thermal shutdown and current-limit protection guard against bus shorts from miswiring during field installation, and the wide -40C to +125C range suits outdoor enclosures and unconditioned spaces without derating the communication budget.
موصى به
Medical Equipment Interconnect
CAN remains popular inside medical devices for linking motor controllers, sensor boards, and HMI panels, because its differential signaling is robust in electrically noisy environments around switching power stages. The SN65HVD255DR's fast loop times keep timing margin intact on the long flex and cable routes inside large imaging and lab equipment, while its deterministic dominant/recessive signaling supports the priority-based arbitration CAN provides for safety-relevant messages. Operating on a simple 5V rail with built-in thermal and short-circuit protection, it reduces component count on densely packed control boards with no extra protection devices needed.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ SN65HVD255DR — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | SN65HVD256DR | SN65HVD255QDRQ1 | TJA1051T | MCP2551-E/SN |
|---|---|---|---|---|---|
| Package | 8-SOIC (D) | 8-SOIC (D) - same | 8-SOIC (D) - same | 8-SOIC - same footprint | 8-SOIC - same footprint |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | NXP Semiconductors | Microchip Technology |
| Data Rate | >1 Mbps (Turbo CAN) | >1 Mbps | >1 Mbps | up to 5 Mbps (CAN FD tolerant) | 1 Mbps |
| Fast Loop Times | Yes (Turbo CAN) | Yes | Yes | Standard | No |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| CAN FD Support | No (Classic CAN) | No | No | No (TJA1051T/3 partial) | No |
أبرز الفروقات
- Turbo CAN fast loop times (مقابلMCP2551-E/SN)
- AEC-Q100 qualified variant available (مقابلSN65HVD256DR)
- Pin-compatible CAN FD upgrade path (مقابلTJA1051T)
ملاحظات التصميم
Place a 0.1uF ceramic bypass capacitor as close as possible to the VCC pin (pin 3) with a solid ground return to pin 2. Keep CANH and CANL traces symmetric, matched in length, and short to the connector to preserve differential balance and minimize emissions at extended data rates. Route TXD/RXD away from CANH/CANL to avoid coupling transients into controller logic.
Terminate both physical ends of the bus with 120-ohm resistors matching the cable characteristic impedance. Stub lengths to intermediate nodes should be kept short (typically <0.3 m at 1 Mbps) since reflections accumulate quickly on >1 Mbps Turbo CAN networks. Use twisted-pair cable (nominal 120-ohm differential impedance) to reject common-mode noise in industrial environments.
The RS pin (pin 8) controls slew-rate/mode behavior - do not leave it floating; configure it per the TI SN65HVD255 datasheet (SLLSE76) to meet your EMC versus loop-speed trade-off. Verify VREF pin handling when substituting family members such as SN65HVD256DR, as protection-feature and timeout differences exist even though the pinout matches. Never exceed the 5V supply ratings or omit short-circuit protection review for bus fault conditions.
معلومات الامتثال
RoHS compliance and lead-free assembly per standard TI SOIC (D) product offering; verify REACH and halogen-free status on TI.com product page for SN65HVD255DR.
