ISO1450DW - 50 Mbps 5 kVrms Isolated RS-485/RS-422 | Texas Instruments
Référence : ISO1450DW ✓ ActifISO1450DW Présentation
Alternatives de remplacement direct pour ISO1450DW — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ISO1450DW (même facteur de forme et même empreinte) — différant par Package, Product Type, EMC Protection, Maximum Data Rate, Operating Temperature Range.
ISO1450BDW
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →ISO1410BDW
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →ISO1430DWR
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →ISO1452DW
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →ISO1452DWR
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →ISO1450DW Spécifications
| 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 |
| Plage de température de fonctionnement | -40 °C to 125 °C |
| Boîtier | 16-pin SOIC wide-body (DW) |
| Type de montage | 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 |
Guide de configuration des broches du ISO1450DW 16-pin soic wide-body (dw)
Configuration des broches du ISO1450DW (boîtier 16-pin soic wide-body (dw)). La numérotation des broches, les fonctions et les schémas de connexion sont définis dans la fiche technique du fabricant. Consultez-la pour l'empreinte exacte et les directives de soudage.
Aucune donnée de brochage détaillée disponible pour ISO1450DW.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ISO1450DW convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ISO1450DW — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Verified high-speed isolated data capability (vs ISO1430DWR)
- Explicit EMC protection (vs ISO1410BDW)
- Wide supply-voltage operating range (vs ISO1450BDW)
Notes de conception
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.
Informations de conformité
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.
