ISO1410DWR - 500kbps Isolated RS-485/RS-422 | Texas Instruments
部品番号: ISO1410DWR ✓ 生産中ISO1410DWR 概要
An isolated RS-485/RS-422 transceiver is a digital interface IC that combines differential line-driver and receiver functions with a signal-isolation barrier. It belongs to the interface-IC hierarchy: RS-485/RS-422 transceiver > isolated transceiver > digital interface IC > semiconductor. Galvanic isolation separates the bus-side and logic-side circuits, helping protect equipment from ground-potential differences and industrial transients while allowing reliable communication over long cable runs.
The ISO1410 family is designed for harsh industrial environments. Its bus pins are specified to withstand high levels of IEC electrostatic-discharge and electrical-fast-transient events, reducing the need for additional external protection in suitable designs. The robust EMC characteristics make the device useful in industrial automation, factory equipment, building controls, instrumentation, and other systems where the communication bus is exposed to electrical noise.
The ISO1410 supports up to 500 kbps signaling, making it appropriate for moderate-speed half-duplex RS-485 networks rather than high-speed data-center or automation links. Its isolated architecture allows the transceiver to bridge a field-side bus and a host-side digital interface while preventing ground currents from flowing through the communication path. The 16-pin SOIC (DW) package supports conventional surface-mount assembly and is identified by the ISO1410DWR ordering code.
Typical applications include industrial motor controllers, PLC interfaces, remote sensor networks, industrial gateways, building automation controllers, and RS-422 equipment connections. For these applications, the combination of half-duplex operation, 500-kbps signaling, fail-safe behavior, EMC protection, and 5-kVrms isolation helps simplify the physical layer while improving robustness against industrial electrical stress.
Designers should verify the complete datasheet for pin assignments, isolation ratings, bus termination requirements, recommended network topology, and operating constraints before releasing a PCB. The verified source data confirms the device family, package, speed, isolation, temperature range, and EMC protection, but detailed pin-level and electrical-limit information is not included in the supplied records. This page combines verified product attributes, sourcing information, comparison guidance, and practical engineering cautions for faster component evaluation.
ドロップイン代替品: ISO1410DWR — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: ISO1410DWR （同一形状・フットプリント） — 相違点: Package, Operating Temperature Range, Product Type, EMC Protection, Duplex Mode.
ISO1410DW
✅ ドロップイン価格はお問い合わせください
データシートを見る →ISO1410BDW
✅ ドロップイン価格はお問い合わせください
データシートを見る →ISO1412DWR
✅ ドロップイン価格はお問い合わせください
データシートを見る →ISO1430BDW
✅ ドロップイン価格はお問い合わせください
データシートを見る →ISO1410DWR 仕様
| Transceiver Type | 1/1 isolated transceiver |
| Supported Standards | TIA/EIA RS-485 and RS-422 |
| Duplex Mode | Half-duplex |
| Maximum Data Rate | 500 kbps |
| Isolation Protection | 5-kVrms |
| Isolation Type | Galvanic isolation |
| EMC Protection | EMC protected |
| Fail-Safe Function | Included |
| 動作温度範囲 | -40 °C to +125 °C |
| パッケージ | 16-pin wide-body SOIC (DW) |
| 実装タイプ | Surface mount |
| Bus Transient Tolerance | IEC electrostatic discharge and electrical fast transient events |
| Isolation Architecture | 3-channel digital isolator with RS-485 transceiver |
| Single-Side Power Isolation | Supported |
| Manufacturer | Texas Instruments |
| Product Line | ISO14xx isolated RS-485/RS-422 transceiver family |
| Datasheet Availability | Manufacturer datasheet and product page available |
ISO1410DWR 16-pin wide-body soic (dw) ピン配置ガイド
ISO1410DWR (16-pin wide-body soic (dw) パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: ISO1410DWR.
詳細は データシート をご参照ください。
主な用途
ISO1410DWR の用途: 6 件s: Industrial PLC Bus Interfaces, Motor Controller Communications, Remote Sensor Networks, Building Automation Gateways, Instrumentation and Test Equipment, Industrial Communication Hubs.
Industrial PLC Bus Interfaces
The ISO1410DWR fits PLC remote-I/O and supervisory links that use half-duplex RS-485. Its 500-kbps maximum signaling rate supports moderate-speed command and telemetry traffic, while the 5-kVrms isolation barrier separates field-side equipment from the controller electronics. The EMC-protected bus pins are particularly relevant in industrial cabinets where cables may receive ESD or EFT disturbances. Designers should use a 16-pin wide-body SOIC layout, verify termination and fail-safe behavior in the TI datasheet, and keep isolation and transceiver supply domains properly decoupled. The device provides isolation without integrated isolated power, so the system must provide isolated supply rails where required.
おすすめ
Motor Controller Communications
The ISO1410DWR can connect a motor controller to an industrial master over RS-485 when the required data rate is 500 kbps or lower. Galvanic isolation limits the effect of ground-potential differences between a moving machine enclosure and supervisory electronics, improving operational robustness. EMC protection on the bus pins is valuable when motor switching and long cable runs are present. The half-duplex interface simplifies the physical bus but requires correct driver-enable control and protocol timing. Engineers should review the datasheet for bus loading, termination, common-mode limits, and isolation barrier details before integrating it into a safety- or motion-related system.
おすすめ
Remote Sensor Networks
ISO1410DWR suits distributed temperature, pressure, level, and environmental sensors that communicate through an RS-485 network. A 500-kbps link is appropriate for polling multiple moderate-rate nodes, and the isolated transceiver helps prevent ground loops between sensors connected at different points. Its -40 °C to +125 °C range supports industrial environments, while EMC protection assists with electrically noisy installations. The circuit can be placed at a remote sensor concentration point to communicate with a gateway over RS-422 or RS-485. Layout should provide a clean isolation barrier, proper bus termination, and surge-protection components where the installation requires them beyond the transceiver's specified bus-pin immunity.
おすすめ
Building Automation Gateways
The ISO1410DWR is appropriate for building-automation gateways that connect lighting, HVAC, access, or environmental controllers over isolated RS-485. The 500-kbps rate is more than sufficient for typical supervisory traffic and allows reliable half-duplex communication on multipoint buses. Isolation improves fault containment and helps manage ground differences between building zones, while the fail-safe circuit supports predictable receiver behavior when the bus is idle or undriven. Installation engineers should still evaluate surge, lightning, and long-cable hazards, because the device's ESD and EFT capability does not replace external protection for severe surge exposure. Use the manufacturer application guidance to select termination and fail-safe biasing.
おすすめ
Instrumentation and Test Equipment
ISO1410DWR can be used as the isolated communication front end for laboratory and industrial instrumentation that exchanges RS-422 or RS-485 commands with external sensors. The differential interface supports noise-resistant data transfer, and galvanic isolation protects sensitive host circuitry from field-side disturbances. At a maximum 500-kbps signaling rate, the device aligns with many measurement and control protocols that prioritize deterministic command response rather than bulk throughput. For precision instruments, the isolation barrier should be kept away from high-current switching paths, and the transceiver supplies should be filtered according to the datasheet. Confirm the actual protocol timing and electrical levels with the system specification.
おすすめ
Industrial Communication Hubs
The ISO1410DWR can support isolated RS-485/RS-422 ports in industrial communication hubs, converters, and serial interface modules. Half-duplex operation is compatible with shared-bus network architectures, while the 16-pin wide-body SOIC package supports standard surface-mount assembly. The 5-kVrms isolation specification and EMC-protected bus pins help a port withstand industrial noise, but thermal performance, creepage, clearance, and isolated-power implementation must follow the complete manufacturer datasheet. Because ISO1410 does not include integrated isolated DC power, a gateway using the device must provide suitable isolated supplies or accept a non-isolated power arrangement where permitted. Verify system grounding and bus termination before production release.
おすすめ
エンジニアリング参考データ: ISO1410DWR — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | ISO1410DW | ISO1410BDW | ISO1412DWR | ISO1430BDW |
|---|---|---|---|---|---|
| Package | 16-pin wide-body SOIC (DW) | 16-pin wide-body SOIC (DW) | 16-pin wide-body SOIC (DW) | 16-pin wide-body SOIC (DW) | 16-pin wide-body SOIC (DW) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Maximum Data Rate | 500 kbps | 500 kbps | 500 kbps | 1 Mbps | 12 Mbps |
| Interface Standards | RS-485 and RS-422 | RS-485 and RS-422 | RS-485 and RS-422 | RS-485 and RS-422 | RS-485 and RS-422 |
主な差別化要因
- Moderate-speed isolated bus operation （vs ISO1430BDW)
- Industrial EMC emphasis （vs ISO1412DWR)
- Wide temperature capability （vs ISO1410BDW)
- Direct half-duplex 500-kbps function （vs ISO1410DW)
設計ノート
Keep the isolated transceiver's bus-side and logic-side copper, decoupling, and return paths separated according to the Texas Instruments ISO1410 datasheet layout guidance. The device does not include integrated isolated power, so each isolated domain requires a suitable supply arrangement. Place input and output capacitors close to their associated pins and avoid routing isolation-barrier nets beneath high-current switching nodes. Maintain the package's creepage and clearance requirements because the 5-kVrms rating alone does not guarantee compliant board-level spacing.
Do not treat a higher-data-rate family member as an automatic drop-in substitute. ISO1412DWR and ISO1430BDW use the 16-SOIC ISO14xx format, but their maximum rates are 1 Mbps and 12 Mbps versus 500 kbps for ISO1410DWR. Before substitution, verify driver-enable timing, receiver thresholds, slew rate, isolation grade, bus loading, and fail-safe behavior. Also confirm that the selected suffix carries the required automotive, industrial, or extended-temperature qualification.
Use the ISO1410DWR's integrated EMC protection as part of, not a substitute for, the complete surge and ESD strategy. For long outdoor or industrial cables, evaluate external surge protection, cable shielding, grounding, and common-mode requirements. The manufacturer states that bus pins withstand high levels of IEC ESD and EFT events; severe lightning or switching surges may require additional protection. Keep protective-network return currents away from sensitive isolation and signal-reference paths.
ISO1410DWR does not provide integrated isolated DC power. The bus side, logic side, and isolation barrier therefore require a deliberate power architecture with adequate supply levels, decoupling, and startup behavior. Verify each domain's voltage limits and isolation requirements directly in the current manufacturer datasheet. Incorrect grounding between isolated domains can defeat the intended protection, while inadequate capacitor placement can couple switching noise across the barrier.
コンプライアンス情報
The supplied comparison results mention RoHS and REACH information for ISO1410DWR and ISO1410BDW but do not provide the actual status values. IEC ESD and EFT bus-immunity levels are mentioned by TI, but no specific standard numbers are supplied in the verified records.
