SN65HVD05D - High-Output RS-485 Transceiver | Texas Instruments
料号： SN65HVD05D ✓ 量产中SN65HVD05D 概述
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.
直接替换替代料： SN65HVD05D ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： SN65HVD05D （相同外形与封装尺寸） ——差异在于 Minimum Differential Output Voltage.
SN65HVD06D
✅ 直接替换✓ 有现货
$0.7383 / 个
查看数据手册 →SN65HVD07D
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
SN65HVD05D 规格参数
| 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 |
| 封装 | 8-pin SOIC (D) |
| 安装类型 | Surface mount |
SN65HVD05D 8-pin soic (d) 引脚配置指南
SN65HVD05D（8-pin soic (d) 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： SN65HVD05D.
请参阅 数据手册 以查看完整引脚配置。
典型应用
SN65HVD05D 适用于 6 应用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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： SN65HVD05D ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Verified high-output drive （对比 SN65HVD06D)
- Supports dense RS-485 networks （对比 SN65HVD07D)
- Integrated fault-oriented receiver behavior （对比 SN65HVD06D)
设计说明
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.
合规信息
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.