ISO1430DWR - 12Mbps Isolated RS-485 Transceiver | TI
MPN： ISO1430DWR ✓ 啟用中ISO1430DWR 概覽
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.
直接替換替代品，適用於 ISO1430DWR — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ISO1430DWR （相同外形與佔位） — 差異在於 Package, Data Rate (max), Duplex, EMC Protection, Function.
ISO1430DW
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ISO1430BDWR
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ISO1432DWR
✅ 直接替換 ⚠️ 規格未經驗證✓ 有庫存
$4.9219 / 單位
查看資料表 →ISO3088DW
✅ 直接替換📋 參考替代品（不在目錄中）
ISO1176DW
✅ 直接替換📋 參考替代品（不在目錄中）
ISO1430DWR 規格
| 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 |
| 工作溫度範圍 | -40°C to +125°C |
| 封裝 | 16-pin SOIC (DW) |
| 安裝類型 | Surface mount |
ISO1430DWR 16-pin soic (dw) 腳位配置指南
ISO1430DWR（16-pin soic (dw) 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： ISO1430DWR.
請參閱 資料表 以查看完整腳位配置。
典型應用
ISO1430DWR 適用於 6 應用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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 ISO1430DWR — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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) |
主要差異化特點
- Balanced speed and confirmed isolation rating (對比ISO3088DW)
- Lower maximum data rate than the higher-speed pin-compatible alternative (對比ISO1176DW)
- Same broad 16-pin DW package family (對比ISO1432DWR)
- EMC-focused device positioning (對比ISO1430DW)
設計說明
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.
合規資訊
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.