ISO1430DWR - 12Mbps Isolated RS-485 Transceiver | TI
部品番号: ISO1430DWR ✓ 生産中ISO1430DWR 概要
An isolated RS-485/RS-422 transceiver is a differential interface IC that combines a line driver, line receiver, and galvanic isolation barrier. The isolation barrier separates the equipment-side ground domain from the noisy communications bus, reducing common-mode current paths and preventing ground-potential differences from disrupting data transfer. Within the interface hierarchy, the ISO1430 belongs to the RS-485/RS-422 transceiver class and the broader isolated communications interface category.
Key features include a 12-Mbps maximum data rate, half-duplex operation, one driver and one receiver, 5-kVrms isolation, EMC protection, and an operating-temperature range of -40°C to +125°C. These characteristics suit factory automation, grid infrastructure, photovoltaic inverters, industrial motor drives, HVAC equipment, building automation, and fieldbus gateways where long cable runs and electrically noisy environments are common.
The ISO14xx device family uses differential signaling to reject common-mode noise and support robust point-to-point or multidrop communications. Its integrated isolation prevents the bus-side ground from being directly connected to the logic-side ground, while its EMC protection helps the transceiver withstand connector-side ESD and EFT events. The 12-Mbps ceiling provides ample bandwidth for high-speed industrial control data while preserving compatibility with established RS-485 and RS-422 networks.
Typical deployments include PLC-to-RS-485 fieldbus links, photovoltaic-inverter monitoring, grid-control equipment, industrial motor controllers, remote sensor gateways, and HVAC or building-automation controllers. A one-transceiver arrangement supports half-duplex buses where the same differential pair carries both transmitted and received data through controlled driver-enable timing.
Designers should carefully separate logic-side and bus-side ground domains, provide the decoupling and isolation components specified by the Texas Instruments manufacturer datasheet, and maintain controlled-impedance routing between the transceiver and external connectors. PCB creepage, isolation-barrier placement, bus termination, protection grounding, and common-mode-transient requirements should be reviewed before production release.
This page consolidates verified manufacturer and distributor information, parameter-level comparisons, qualified drop-in alternatives, application guidance, and practical PCB considerations. It highlights the trade-offs among speed, isolation rating, bus directionality, and package compatibility to support faster engineering selection and sourcing decisions.
ドロップイン代替品: ISO1430DWR — 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: ISO1430DWR （同一形状・フットプリント） — 相違点: Package, Data Rate (max), Duplex, EMC Protection, Function.
ISO1430DW
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →ISO1430BDWR
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ISO1432DWR
✅ ドロップイン ⚠️ 仕様未検証価格はお問い合わせください
データシートを見る →ISO3088DW
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ISO1176DW
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ISO1430DWR 仕様
| Product Type | Galvanically isolated half-duplex RS-485 and RS-422 transceiver |
| Maximum Data Rate | 12 Mbps |
| Isolation Rating | 5 kVrms |
| Transceiver Configuration | 1 transmitter and 1 receiver |
| Duplex Mode | Half-duplex |
| EMC Protection | Protected against ESD and EFT bus events |
| Interface Standards | TIA/EIA RS-485 and RS-422 |
| 動作温度範囲 | -40°C to +125°C |
| パッケージ | 16-pin SOIC (DW) |
| 実装タイプ | Surface mount |
ISO1430DWR 16-pin soic (dw) ピン配置ガイド
ISO1430DWR (16-pin 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: ISO1430DWR.
詳細は データシート をご参照ください。
主な用途
ISO1430DWR の用途: 6 件s: Industrial Fieldbus Communication, Grid Infrastructure Equipment, Photovoltaic Inverter Monitoring, Motor Drive and Industrial Control, HVAC and Building Automation, Fieldbus Gateways and Remote Sensors.
Industrial Fieldbus Communication
The ISO1430DWR fits PLC, sensor-hub, and factory-automation fieldbus interfaces because its 12-Mbps half-duplex operation supports differential RS-485 and RS-422 links while the 5-kVrms barrier separates logic and bus grounds. Place the transceiver at the bus boundary, connect it to the controller UART, and use controlled driver-enable timing to share the differential pair. Its EMC-protected bus pins improve resilience to connector ESD and EFT events, although external surge protection may still be needed for long outdoor cables. The -40°C to +125°C range supports industrial temperature conditions.
おすすめ
Grid Infrastructure Equipment
The ISO1430DWR is suitable for grid-control cabinets, remote terminal units, and substation monitoring links where high common-mode noise and ground-potential differences can impair conventional RS-485 receivers. Its 5-kVrms isolation establishes a clear electrical boundary between the controller and communications cable, while the 12-Mbps rate supports high-speed half-duplex data transfer. The EMC-protected interface helps withstand ESD and EFT disturbances at connector entry. Maintain recommended isolation creepage and keep unprotected copper away from the barrier to preserve the 5-kVrms isolation rating.
おすすめ
Photovoltaic Inverter Monitoring
The ISO1430DWR can connect photovoltaic inverters, combiners, and monitoring controllers to RS-485 equipment networks. A 12-Mbps half-duplex link provides useful throughput margin for status, energy, and diagnostic traffic, while the integrated isolation reduces coupling between inverter switching systems and the communications bus. Its EMC protection is valuable around motor stages, relays, and power converters where transient events are common. Use terminated bus wiring and chassis-referenced protection, and verify that the transceiver's supply and ground arrangement matches the inverter control architecture.
おすすめ
Motor Drive and Industrial Control
The ISO1430DWR fits motor-drive parameter links, encoder-related diagnostics, and controller-to-remote-I/O communication where switching noise could otherwise corrupt differential data. The 5-kVrms isolation barrier prevents the drive's high-energy ground from becoming part of the communications reference, and the 12-Mbps rate supports rapid half-duplex command and response exchanges. EMC protection adds resilience at exposed connectors. In a complete drive, place the transceiver close to the external connector and maintain the isolation creepage and clearance prescribed by the manufacturer datasheet.
おすすめ
HVAC and Building Automation
The ISO1430DWR can bridge building controllers, HVAC equipment, sensors, and supervisory controllers using RS-485 or RS-422. Its 12-Mbps capability comfortably supports modern building-automation traffic, while the 5-kVrms isolation helps prevent equipment-ground differences from causing data errors across interconnected rooms or buildings. EMC-protected bus pins improve reliability near relays, contactors, and motor loads. Choose topology, termination, and grounding based on cable length, and avoid treating transient protection as a substitute for properly engineered surge protection.
おすすめ
Fieldbus Gateways and Remote Sensors
The ISO1430DWR is appropriate for gateways that translate between a local controller and a remote RS-485 or RS-422 sensor network. The isolated differential interface supports a 12-Mbps half-duplex link, while 5-kVrms isolation limits ground-current paths between a gateway enclosure and field wiring. EMC protection helps at external cable connections exposed to ESD and EFT events. Because fieldbus nodes can present different loading and ground conditions, validate the complete bus topology, termination strategy, and isolation clearances rather than evaluating only the transceiver datasheet limits.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: ISO1430DWR — 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 | ISO1430DW | ISO1430BDWR | ISO1432DWR | ISO3088DW | ISO1176DW |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | SOIC-16 (DW) | SOIC-16 (DW) | SOIC-16 (DW) | SOIC-16 (DW) | SOIC-16 (DW) | SOIC-16 (DW) |
主な差別化要因
- Balanced speed and confirmed isolation rating （vs ISO3088DW)
- Lower maximum data rate than the higher-speed pin-compatible alternative （vs ISO1176DW)
- Same broad 16-pin DW package family （vs ISO1432DWR)
- EMC-focused device positioning （vs ISO1430DW)
設計ノート
Place the ISO1430DWR close to the external communications connector and route the differential bus as a tightly coupled pair. Keep logic-side and bus-side copper, planes, and ground returns separated around the isolation barrier, including beneath the package where appropriate. Do not route high-current or high-voltage switching paths beneath the isolation region. The supplied data does not state exact creepage, clearance, or pad-layout dimensions, so use the current Texas Instruments manufacturer datasheet and its recommended layout rather than estimating them.
Use the EMC protection as part of a complete interface strategy rather than as a substitute for external surge protection. ESD and EFT can enter through the connector and cable, while lightning or industrial transients may exceed the transceiver's internal ratings. Provide suitable bus protection, chassis or signal-ground bonding, and termination according to the topology. Long outdoor cables should receive a site-specific surge assessment, and protective-device standoff should be checked against the 12-Mbps signal bandwidth.
Do not substitute ISO3088DW or ISO1176DW solely because Texas Instruments identifies them as pin-to-pin compatible. Their verified data rates are 20 Mbps and 40 Mbps versus 12 Mbps for ISO1430DWR, and compatibility does not guarantee identical isolation, propagation delay, protection, or bus behavior. Verify supply voltage, driver-enable polarity, receiver enable, fail-safe behavior, isolation rating, and all timing parameters before substitution. Likewise, confirm the exact ISO1430 family suffix when selecting ISO1430DW or ISO1430BDWR.
コンプライアンス情報
The supplied verified results do not provide explicit compliance declarations for ISO1430DWR. The wide operating-temperature range does not establish AEC-Q100 qualification, so all unstated compliance fields remain unknown.