ISO1450DW - 50 Mbps 5 kVrms Isolated RS-485/RS-422 | Texas Instruments
N.º da peça: ISO1450DW ✓ AtivoISO1450DW Visão geral
Alternativas drop-in para ISO1450DW — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ISO1450DW (mesmo formato e footprint) — diferindo em Package, Product Type, EMC Protection, Maximum Data Rate, Operating Temperature Range.
ISO1450BDW
✅ Drop-InConsulte o preço
Ver ficha técnica →ISO1410BDW
✅ Drop-InConsulte o preço
Ver ficha técnica →ISO1430DWR
✅ Drop-InConsulte o preço
Ver ficha técnica →ISO1452DW
✅ Drop-In ⚠️ Especificações não verificadasConsulte o preço
Ver ficha técnica →ISO1452DWR
✅ Drop-In ⚠️ Especificações não verificadasConsulte o preço
Ver ficha técnica →ISO1450DW Especificações
| Product Type | Isolated RS-485/RS-422 transceiver |
| Transceiver Configuration | 1/1 half-duplex |
| Maximum Data Rate | 50 Mbps |
| Isolation Voltage | 5 kVrms |
| Supply Voltage Range | 1.71 V to 5.5 V |
| Faixa de temperatura de operação | -40 °C to 125 °C |
| Encapsulamento | 16-pin SOIC wide-body (DW) |
| Tipo de montagem | Surface mount |
| Supported Standards | TIA/EIA RS-485 and RS-422 |
| Differential Communication | Yes |
| Direction Control | Half-duplex |
| EMC Protection | EMC protected |
| Isolation Type | Galvanic isolation |
| Logic Compatibility | 1.71 V to 5.5 V supply operation |
| Manufacturer Evaluation Module | ISO1410DWEVM for related ISO1410 evaluation |
Guia de Configuração de Pinos do ISO1450DW 16-pin soic wide-body (dw)
Configuração de pinos para ISO1450DW (pacote 16-pin soic wide-body (dw)). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.
Nenhum dado detalhado de pinagem disponível para ISO1450DW.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
ISO1450DW é adequado para 6 aplicaçãos: Factory Automation Communication, Industrial Sensor Gateway, Programmable Logic Controller Interface, Test and Measurement Equipment, Building and Energy Systems, Medical and Diagnostic Equipment.
Factory Automation Communication
The ISO1450DW fits isolated factory-automation links requiring a 50-Mbps differential transceiver and 5-kVrms isolation. It can connect a controller or programmable-logic device to RS-485 equipment while separating the bus-side environment from sensitive logic circuitry. Its verified -40 °C to 125 °C range suits industrial temperature conditions. The principal design consideration is managing the shared half-duplex bus through direction control and applying termination only where the selected topology requires it.
Recomendado
Industrial Sensor Gateway
ISO1450DW can serve as the isolated RS-485/RS-422 interface in a sensor gateway that aggregates measurements from field equipment. The 50-Mbps capability provides ample signaling headroom for short, controlled industrial links, while 5-kVrms isolation helps protect the gateway electronics from ground-potential differences and bus transients. Because the interface is half-duplex, the firmware should coordinate bus direction and avoid simultaneous transmission attempts. External surge protection remains an application-level requirement.
Recomendado
Programmable Logic Controller Interface
The ISO1450DW is appropriate for a programmable logic controller or industrial controller that needs a high-speed isolated differential bus. Its 1.71 V to 5.5 V operating range supports common digital supply environments, and the 16-pin wide-body SOIC package simplifies comparison with other TI isolated interface designs. Isolation can reduce the effect of ground shifts in distributed cabinets, but engineers must still design the isolation barrier, creepage, clearance, and bus protection according to the complete datasheet.
Recomendado
Test and Measurement Equipment
ISO1450DW can connect laboratory or field-test equipment to a half-duplex RS-485 or RS-422 instrument bus. The 50-Mbps rate supports short, high-speed test links, while 5-kVrms isolation helps protect test electronics from connected equipment. The 1.71 V to 5.5 V supply range allows integration with multiple logic levels. Designers should control cable length and reflections carefully because nominal signaling speed does not guarantee adequate margin over arbitrary cable lengths or topologies.
Recomendado
Building and Energy Systems
The ISO1450DW can be used in building-control or energy-management equipment requiring an isolated RS-485 communication path. The half-duplex topology is well suited to bus-oriented controllers, and the EMC protection helps maintain operation in environments with electrically noisy equipment. Its extended -40 °C to 125 °C range supports deployed industrial equipment. The isolation barrier should be evaluated for the applicable installation environment, and bus termination should be planned for the cable network rather than added indiscriminately.
Recomendado
Medical and Diagnostic Equipment
ISO1450DW can provide an isolated communications link in medical or diagnostic equipment where a patient-connected or externally accessible system requires separation from communication circuitry. Its 5-kVrms isolation and EMC protection are relevant to that isolation objective, while 50-Mbps operation supports short, high-speed control or monitoring links. However, the supplied data does not state medical certification, so this use requires separate safety, regulatory, and system-level validation beyond the component specifications.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ISO1450DW — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ISO1450BDW | ISO1410BDW | ISO1430DWR | ISO1452DW | ISO1452DWR |
|---|---|---|---|---|---|---|
| Package | 16-pin SOIC wide-body (DW) | 16-pin SOIC (DW) | 16-pin SOIC (DW) | 16-pin SOIC (DW) | 16-pin SOIC (DW) | 16-pin SOIC (DW) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
Principais diferenciais
- Verified high-speed isolated data capability (vs ISO1430DWR)
- Explicit EMC protection (vs ISO1410BDW)
- Wide supply-voltage operating range (vs ISO1450BDW)
Notas de projeto
Place the transceiver and its bus-side protection components near the connector and keep the high-current and high-switching return paths away from the isolated logic side. Maintain the isolation barrier without copper or unintended plane overlap, and follow the manufacturer's recommended layout for input and output bypass capacitors. The complete pin and layout information must be taken from the ISO1450 datasheet because the supplied verified excerpts do not include the complete pin table.
Do not select a replacement solely because it is labeled a 16-pin SOIC. Confirm pin names, direction-control polarity, receiver enable behavior, isolation rating, supply range, and bus terminal mapping. ISO1450DW uses a half-duplex bus arrangement, so transmitter and receiver sharing creates timing and contention risks. Firmware must avoid enabling transmission while another node is driving the same bus.
Use the EMC protection and 5-kVrms isolation as part of a complete interface design, not as a substitute for external surge and ESD protection. The bus cable can introduce transients that exceed the transceiver's ratings. Select protection components using the actual bus voltage, ground-potential range, data rate, and installation standard, and verify termination and common-mode behavior with the intended cable and topology.
Informações de conformidade
The supplied verified results include a comparison page mentioning RoHS and REACH status for ISO1410BDW versus ISO1450DW, but the snippets do not provide the actual compliance values for ISO1450DW. No compliance claims are therefore inferred.
