ISO1050QDUBRQ1 - 2.5kVRMS Isolated CAN Transceiver | Texas Instruments
Артикул: ISO1050QDUBRQ1 ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $6.1 | $6,10 |
| 10 | $5.55 | $55,50 |
| 100 | $4.8 | $480,00 |
| 500 | $4.2 | $2.100,00 |
| 1.000 | $3.85 | $3.850,00 |
ISO1050QDUBRQ1 Обзор
An isolated CAN transceiver is a physical-layer interface IC that translates CAN controller logic signals (TXD/RXD) into the differential CANH/CANL bus signals while blocking DC and common-mode transients across the isolation barrier. Isolation is essential in automotive and industrial systems where ground potential differences, noise, and surges exist between the logic domain and the bus domain. Within the power and interface IC hierarchy, the ISO1050 sits between the host MCU and the physical CAN twisted-pair bus.
Key features include ISO11898-2 compliance, 2500 VRMS SiO2 isolation (5000 VRMS on the ISO1050DW variant), operation from 5V supplies, and an operating temperature range of -55C to +105C per the Q1 automotive qualification. The single-package integration of the isolation barrier and transceiver simplifies layout compared to discrete optocoupler-plus-transceiver solutions, reducing BOM count and improving timing skew.
Technically, the SiO2-based capacitive isolation of the ISO10xx family provides robust, low-power signal transfer with far better aging characteristics and CMTI than optocoupler alternatives. The device integrates the oscillator, modulator, and differential driver/receiver, supporting reliable CAN FD-rate backward compatibility at classic CAN data rates.
Typical applications include automotive body electronics and gateways, industrial field bus systems, remote sensing nodes, motor drive control networks, and building automation where isolated CAN rails are required. Used in conjunction with isolated power supplies, the device provides a fully isolated CAN node.
Design consideration: keep the isolated-side VCC2 bypass capacitor (100nF ceramic) close to the pin and ensure the PCB creepage/clearance across the barrier follows the DUB package's rated working voltage.
Аналоги без доработки для ISO1050QDUBRQ1 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с ISO1050QDUBRQ1 (тот же форм-фактор и посадочное место) — отличается по Isolation Barrier, Package, Supply Voltage.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
ISO1050DUBR
✅ Прямая замена✓ В наличии
$0.52 / шт.
Открыть даташит →ISO1050QDUBRQ1 Характеристики
| Product Type | Galvanically Isolated CAN Transceiver |
| Standard Compliance | ISO11898-2 |
| Isolation Rating | 2500 VRMS (DUB package) |
| Isolation Barrier | Silicon oxide (SiO2) |
| Напряжение питания | 5 V |
| Number of Terminals | 8 |
| Корпус | SOIC-8 (DUB, R-PDSO-G8) |
| Package Length | 9.15 mm |
| Рабочая температура | -55C to +105C |
| Automotive Qualification | AEC-Q100 (Q1) |
| Уровень MSL | 4 |
| Тип монтажа | Surface Mount |
| Isolation Family | TI ISO10xx |
| Bus Interface | CANH / CANL differential |
Конфигурация выводов ISO1050QDUBRQ1
| Контакт 1 | VCC1 — Logic-side 5V supply |
| Контакт 2 | TXD — Transmit data input from CAN controller (logic side) |
| Контакт 3 | RXD — Receive data output to CAN controller (logic side) |
| Контакт 4 | GND1 — Logic-side ground |
| Контакт 5 | GND2 — Bus-side ground (isolated) |
| Контакт 6 | CANL — CAN low differential bus line |
| Контакт 7 | CANH — CAN high differential bus line |
| Контакт 8 | VCC2 — Bus-side 5V supply (isolated) |
Типичное применение
ISO1050QDUBRQ1 подходит для 6 применениеs: Automotive CAN Gateways, Industrial Field Bus Systems, Motor Drive Control Networks, Remote Sensing Nodes, Building Automation and Elevator Control, Medical Equipment Isolated Communication.
Automotive CAN Gateways
The ISO1050QDUBRQ1 fits automotive gateways because its AEC-Q100 qualification and -55C to +105C range cover under-hood and body electronics environments, while the 2500 VRMS SiO2 barrier blocks ground potential differences between vehicle power domains. Placed between the gateway MCU and the CANH/CANL twisted pair, it isolates logic from transients on the bus. Pairing with an isolated DC-DC supply creates a fully isolated CAN node; the trade-off is the 5V bus supply requirement versus 3.3V-only transceivers.
Рекомендуется
Industrial Field Bus Systems
In industrial field bus and Profibus-style CAN networks, long cables and separate equipment grounds produce large common-mode voltages; the ISO1050's 2500 VRMS SiO2 isolation and ISO11898-2 compliance directly address this. The single 8-pin SOIC replaces optocoupler-plus-transceiver chains, cutting BOM count and timing skew. Use one isolated supply for the bus side and keep the barrier gap clear on the PCB. Cost per node is slightly higher than a bare transceiver but far below discrete isolation designs.
Рекомендуется
Motor Drive Control Networks
Motor inverters switch hundreds of volts with fast dv/dt, injecting noise into control-area networks; the ISO1050's capacitive SiO2 barrier provides galvanic separation between the MCU domain and the noisy power-stage bus. The device sits on the isolated CAN link between the main controller and inverter board. With 5V bus-side supply and ISO11898-2 signaling, it maintains communication integrity under high common-mode transients. Ensure PCB creepage across the DUB package barrier matches the 2500 VRMS rating.
Рекомендуется
Remote Sensing Nodes
Remote CAN-enabled sensors in industrial and automotive systems frequently sit at different ground potentials from the controller; the ISO1050QDUBRQ1's 2500 VRMS isolation protects the controller while its -55C to +105C range survives harsh locations. The node MCU connects TXD/RXD to side 1 while side 2 drives the bus. Because the IC integrates oscillator and modulator on-chip, only bypass capacitors are needed, simplifying small sensor PCBs. Budget an isolated 5V supply for the bus side.
Рекомендуется
Building Automation and Elevator Control
Building automation controllers span floors and cabinets with long CAN runs and mixed grounding schemes; the ISO1050's galvanic isolation prevents ground loops and surge coupling from corrupting the network. Compliant with ISO11898-2, it drives standard CAN twisted pairs up to the specified bus length. Its single-package integration reduces node cost versus optocoupler designs and improves long-term reliability since SiO2 isolation does not degrade like optocoupler CTR. Standard (non-Q1) ISO1050DUBR may be used to reduce cost in non-automotive installs.
Рекомендуется
Medical Equipment Isolated Communication
Medical devices require patient-side and chassis-side circuits to be galvanically separated; the ISO1050's 2500 VRMS SiO2 isolation supports isolated CAN links between the main controller and front-end modules in diagnostic and monitoring equipment. The capacitive barrier adds negligible propagation skew, keeping CAN timing budgets intact across the isolation. Combined with a medically-rated isolated power supply, the device completes the patient-isolation barrier on the communication path. Verify system-level creepage/clearance against applicable medical safety standards in the final design.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для ISO1050QDUBRQ1 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | ISO1050DUBR | ISO1050DW | ISO1050QDWDRQ1 |
|---|---|---|---|---|
| Package | SOIC-8 (DUB) | SOIC-8 (DUB) - same | SOIC-16 (DW) - different footprint | SOIC-16 (DW) - different footprint |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Isolation Rating | 2500 VRMS | 2500 VRMS | 5000 VRMS | 5000 VRMS |
| AEC-Q100 Qualified | Yes (Q1) | No | No | Yes (Q1) |
| Standard Compliance | ISO11898-2 | ISO11898-2 | ISO11898-2 | ISO11898-2 |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V |
| Isolation Barrier Technology | Silicon oxide (SiO2) capacitive | SiO2 capacitive | SiO2 capacitive | SiO2 capacitive |
Ключевые отличия
- AEC-Q100 automotive qualification (против ISO1050DUBR)
- Integrated isolation plus CAN transceiver in 8 pins (против ISO1050DW)
- SiO2 capacitive isolation without optocoupler aging (против Discrete optocoupler + CAN transceiver solution)
Заметки по проектированию
Place 100nF ceramic bypass capacitors directly across VCC1-GND1 and VCC2-GND2, within 2mm of the pins, since the ISO1050's internal oscillator draws dynamic current across the isolation barrier. Route the isolation barrier as a clear slot or keep-out on the PCB so that creepage and clearance across the DUB package match the 2500 VRMS rating. Do not route high-speed logic traces under the barrier region.
The DUB package is rated 2500 VRMS - if your system requires 5000 VRMS working isolation, the DUB is undersized; move to the ISO1050DW (SOIC-16), accepting a PCB redesign since footprints differ. Also, do not substitute non-Q1 ISO1050DUBR in automotive designs requiring AEC-Q100 traceability - the Q1 qualification is a sourcing and process requirement, not just a temperature-range figure.
The bus-side CANH/CANL traces should be routed as a tightly coupled differential pair with a common-mode choke and split termination (two 60-ohm resistors with a 2.2nF-4.7nF cap to GND2) to improve EMC. Keep the isolated ground (GND2) plane compact and connected to chassis via a single low-ESL capacitor or specified hybrid network to control radiated emissions from common-mode bus current.
Информация о соответствии
AEC-Q100 qualified per Q1 suffix. RoHS/REACH status not present in provided verified data - confirm on TI product page.
