SN65HVD05D - High-Output RS-485 Transceiver | Texas Instruments
MPN： SN65HVD05D ✓ 啟用中SN65HVD05D 概覽
An RS-485 transceiver is an interface IC that converts logic-level digital signals into balanced differential signals for reliable communication over longer, potentially noisy cable runs. The SN65HVD05 family supports ANSI TIA/EIA-485-A and ISO 8482E-compliant devices. Its differential signaling and common-mode rejection help maintain data integrity in industrial environments, while the integrated receiver returns the bus state to the host logic.
The most notable features include high output drive, 3-state operation, a low 1/8-unit-load option supporting as many as 256 nodes, open-circuit, short-circuit, and idle-bus failsafe receiver behavior, and bus-pin ESD protection exceeding 16 kV HBM. The driver also provides controlled output slew rate to limit electromagnetic interference and reduce ringing on properly terminated networks.
The SN65HVD05D combines one driver and one receiver, allowing half-duplex communication when the driver and receiver share the same bus pair. Its differential output is stronger than the minimum commonly required for RS-485 networks, making it useful where bus loading, cable loss, or stub length can reduce signal amplitude. The receiver provides a failsafe response when the bus is disconnected, shorted, or idle.
Typical applications include industrial process-control networks, factory automation equipment, building-control systems, instrumentation links, motor-control equipment, and other multidrop RS-485 networks. These systems benefit from balanced differential signaling, while system-level grounding, surge protection, and cable termination remain essential for reliable operation in electrically noisy environments.
When designing the circuit, use a low-ESR supply capacitor near the device, connect the bus interface to protected circuitry, and verify that transceiver direction control prevents driver contention. The 54-ohm minimum differential output test condition is not a recommendation to terminate the bus at the transmitter; instead, place the standard termination at the appropriate physical ends of the network.
This product page combines verified manufacturer and distributor information, a same-family drop-in comparison, application guidance, and design notes that help engineers evaluate the SN65HVD05D beyond the basic distributor parameter table.
直接替換替代品，適用於 SN65HVD05D — 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： SN65HVD05D （相同外形與佔位） — 差異在於 Minimum Differential Output Voltage.
SN65HVD06D
✅ 直接替換聯絡詢價
查看資料表 →SN65HVD07D
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
SN65HVD05D 規格
| Product Type | Half-duplex RS-422/RS-485 transceiver |
| Driver and Receiver Count | 1 differential driver and 1 differential receiver |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Minimum Differential Output Voltage | 2.5 V into a 54-ohm load |
| Driver Output State | 3-state |
| Receiver Failsafe Behavior | Open-circuit, short-circuit, and idle-bus failsafe |
| Unit Load Option | 1/8 unit load |
| Maximum Node Count | Up to 256 nodes on the bus |
| Bus-Pin ESD Protection | Exceeds 16 kV HBM |
| Driver Output Slew Rate | Controlled |
| Communication Mode | Half-duplex |
| Standards Compatibility | ANSI TIA/EIA-485-A and ISO 8482E |
| 封裝 | 8-pin SOIC (D) |
| 安裝類型 | Surface mount |
SN65HVD05D 8-pin soic (d) 腳位配置指南
SN65HVD05D（8-pin soic (d) 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： SN65HVD05D.
請參閱 資料表 以查看完整腳位配置。
典型應用
SN65HVD05D 適用於 6 應用s: Industrial Process-Control Networks, Factory Automation Equipment, Building-Control Systems, Instrumentation and Data Acquisition, Motor-Control and Power Monitoring, Industrial Gateways and Serial Concentrators.
Industrial Process-Control Networks
The SN65HVD05D fits industrial process-control networks that connect sensors, controllers, and remote I/O over a shared balanced bus. Its differential driver provides at least 2.5 V output into a 54-ohm load, while the receiver offers open-circuit, short-circuit, and idle-bus failsafe behavior for improved state interpretation during faults. The 1/8-unit-load option supports as many as 256 nodes according to the manufacturer information. Designers should still verify cable length, topology, grounding, and surge-protection requirements for the installation.
推薦
Factory Automation Equipment
The SN65HVD05D is appropriate for factory automation controllers, motor-control modules, and remote actuator nodes that need reliable half-duplex communication over industrial cabling. The 3-state driver allows the bus driver to be disconnected during receive intervals, preventing contention when direction control is managed correctly. Bus-pin ESD protection exceeding 16 kV HBM adds useful robustness, but external surge protection and a controlled ground strategy remain important in systems exposed to large machinery and long cable runs.
推薦
Building-Control Systems
The SN65HVD05D can connect building controllers, HVAC equipment, lighting-control modules, and occupancy-sensing nodes over a low-cost balanced RS-485 network. Differential signaling reduces susceptibility to common-mode noise found in building wiring, and the failsafe receiver helps define the state of an inactive or faulted bus. Its 1/8-unit-load option can reduce loading when many nodes share the segment, but installers must observe the manufacturer's bus topology and termination requirements rather than adding unrestricted cable stubs.
推薦
Instrumentation and Data Acquisition
The SN65HVD05D suits instrumentation and data-acquisition systems that must return measurements from remote sensors or laboratory equipment. Its balanced receiver helps reject common-mode noise, while the high-output driver provides useful margin for cables and multidrop bus loading. The device operates from 4.5 V to 5.5 V, which simplifies integration with 5 V instrumentation where its verified operating-temperature and transient specifications satisfy the system requirements. Shielded twisted-pair cabling and correct grounding should be evaluated with the complete installation.
推薦
Motor-Control and Power Monitoring
The SN65HVD05D can support command, status, and diagnostic communication between motor controllers and supervisory equipment. Its 3-state output supports half-duplex bus operation when the direction-control logic prevents the driver from being enabled during reception. The minimum 2.5 V differential output into 54 ohms provides drive margin for industrial wiring, but high-energy motor environments also need careful isolation, surge suppression, and protective-earth design. The transceiver is the communication interface and should not be assumed to replace dedicated motor isolation or protection.
推薦
Industrial Gateways and Serial Concentrators
The SN65HVD05D is useful in gateways and serial concentrators that translate an embedded host interface into an RS-485 field bus. The host can control the 3-state driver direction while the receiver detects bus activity, although robust products generally implement bus arbitration or collision handling above this basic transceiver. Its 4.5 V to 5.5 V supply range supports common embedded rails, and the 8-pin SOIC package simplifies board assembly. Confirm the verified temperature range and ESD requirements for the enclosure and cable environment.
推薦
推薦產品摘要
工程參考資料，適用於 SN65HVD05D — 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 | SN65HVD06D | SN65HVD07D |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 8-pin SOIC (D) | 8-pin SOIC (D) | 8-pin SOIC (D) |
| Transceiver Configuration | 1 driver, 1 receiver, half-duplex | 1 driver, 1 receiver, half-duplex | 1 driver, 1 receiver, half-duplex |
| Supply Voltage Range | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Driver Output State | 3-state | 3-state | 3-state |
主要差異化特點
- Verified high-output drive (對比SN65HVD06D)
- Supports dense RS-485 networks (對比SN65HVD07D)
- Integrated fault-oriented receiver behavior (對比SN65HVD06D)
設計說明
Route the differential bus pair as a tightly coupled pair on the PCB and follow the manufacturer's recommended connector and grounding arrangement. Keep the transceiver close to the connector and place interface protection near the entry point. The 54-ohm figure in the 2.5 V minimum differential-output specification is a test load, not a substitute for network termination; use the standard bus termination at the physical ends of the designated segment.
Do not enable the driver while another transmitter is active, because contention can increase current and distort data. Firmware and external direction-control logic should place the SN65HVD05D into receive mode before a response begins. Also avoid adding long stubs to a multidrop bus: although the 1/8-unit-load option supports as many as 256 nodes according to the manufacturer data, cable length, topology, termination, and every transceiver's unit load still determine usable network capacity.
Use controlled driver slew rate as part of the EMC strategy rather than assuming faster edges improve performance. The manufacturer identifies controlled output slew rate as a family feature, which can reduce ringing and radiated emissions when the bus is properly terminated. Validate the complete enclosure, cable shield, grounding, and transient-protection arrangement with the target industrial immunity requirements; the verified bus-pin ESD rating exceeding 16 kV HBM does not replace external surge protection.
合規資訊
The supplied verified results do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. ANSI TIA/EIA-485-A and ISO 8482E are identified as communication interoperability standards, not product-compliance certifications.